Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (59 commits)
  rtc: max8925: Add function to work as wakeup source
  mfd: Add pm ops to max8925
  mfd: Convert aat2870 to dev_pm_ops
  mfd: Still check other interrupts if we get a wm831x touchscreen IRQ
  mfd: Introduce missing kfree in 88pm860x probe routine
  mfd: Add S5M series configuration
  mfd: Add s5m series irq driver
  mfd: Add S5M core driver
  mfd: Improve mc13xxx dt binding document
  mfd: Fix stmpe section mismatch
  mfd: Fix stmpe build warning
  mfd: Fix STMPE I2c build failure
  mfd: Constify aat2870-core i2c_device_id table
  gpio: Add support for stmpe variant 801
  mfd: Add support for stmpe variant 801
  mfd: Add support for stmpe variant 610
  mfd: Add support for STMPE SPI interface
  mfd: Separate out STMPE controller and interface specific code
  misc: Remove max8997-muic sysfs attributes
  mfd: Remove unused wm831x_irq_data_to_mask_reg()
  ...

Fix up trivial conflict in drivers/leds/Kconfig due to addition of
LEDS_MAX8997 and LEDS_TCA6507 next to each other.

Documentation/devicetree/bindings/mfd/mc13xxx.txt

+* Freescale MC13783/MC13892 Power Management Integrated Circuit (PMIC)
+
+Required properties:
+- compatible : Should be "fsl,mc13783" or "fsl,mc13892"
+
+Optional properties:
+- fsl,mc13xxx-uses-adc : Indicate the ADC is being used
+- fsl,mc13xxx-uses-codec : Indicate the Audio Codec is being used
+- fsl,mc13xxx-uses-rtc : Indicate the RTC is being used
+- fsl,mc13xxx-uses-touch : Indicate the touchscreen controller is being used
+
+Sub-nodes:
+- regulators : Contain the regulator nodes.  The MC13892 regulators are
+  bound using their names as listed below with their registers and bits
+  for enabling.
+
+    vcoincell : regulator VCOINCELL (register 13, bit 23)
+    sw1       : regulator SW1	    (register 24, bit 0)
+    sw2       : regulator SW2	    (register 25, bit 0)
+    sw3       : regulator SW3	    (register 26, bit 0)
+    sw4       : regulator SW4	    (register 27, bit 0)
+    swbst     : regulator SWBST	    (register 29, bit 20)
+    vgen1     : regulator VGEN1	    (register 32, bit 0)
+    viohi     : regulator VIOHI	    (register 32, bit 3)
+    vdig      : regulator VDIG	    (register 32, bit 9)
+    vgen2     : regulator VGEN2	    (register 32, bit 12)
+    vpll      : regulator VPLL	    (register 32, bit 15)
+    vusb2     : regulator VUSB2	    (register 32, bit 18)
+    vgen3     : regulator VGEN3	    (register 33, bit 0)
+    vcam      : regulator VCAM	    (register 33, bit 6)
+    vvideo    : regulator VVIDEO    (register 33, bit 12)
+    vaudio    : regulator VAUDIO    (register 33, bit 15)
+    vsd       : regulator VSD	    (register 33, bit 18)
+    gpo1      : regulator GPO1	    (register 34, bit 6)
+    gpo2      : regulator GPO2	    (register 34, bit 8)
+    gpo3      : regulator GPO3	    (register 34, bit 10)
+    gpo4      : regulator GPO4	    (register 34, bit 12)
+    pwgt1spi  : regulator PWGT1SPI  (register 34, bit 15)
+    pwgt2spi  : regulator PWGT2SPI  (register 34, bit 16)
+    vusb      : regulator VUSB	    (register 50, bit 3)
+
+  The bindings details of individual regulator device can be found in:
+  Documentation/devicetree/bindings/regulator/regulator.txt
+
+Examples:
+
+ecspi@70010000 { /* ECSPI1 */
+	fsl,spi-num-chipselects = <2>;
+	cs-gpios = <&gpio3 24 0>, /* GPIO4_24 */
+		   <&gpio3 25 0>; /* GPIO4_25 */
+	status = "okay";
+
+	pmic: mc13892@0 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "fsl,mc13892";
+		spi-max-frequency = <6000000>;
+		reg = <0>;
+		interrupt-parent = <&gpio0>;
+		interrupts = <8>;
+
+		regulators {
+			sw1_reg: mc13892__sw1 {
+				regulator-min-microvolt = <600000>;
+				regulator-max-microvolt = <1375000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+
+			sw2_reg: mc13892__sw2 {
+				regulator-min-microvolt = <900000>;
+				regulator-max-microvolt = <1850000>;
+				regulator-boot-on;
+				regulator-always-on;
+			};
+		};
+	};
+};

Documentation/devicetree/bindings/mfd/twl-familly.txt

+Texas Instruments TWL family
+
+The TWLs are Integrated Power Management Chips.
+Some version might contain much more analog function like
+USB transceiver or Audio amplifier.
+These chips are connected to an i2c bus.
+
+
+Required properties:
+- compatible : Must be "ti,twl4030";
+  For Integrated power-management/audio CODEC device used in OMAP3
+  based boards
+- compatible : Must be "ti,twl6030";
+  For Integrated power-management used in OMAP4 based boards
+- interrupts : This i2c device has an IRQ line connected to the main SoC
+- interrupt-controller : Since the twl support several interrupts internally,
+  it is considered as an interrupt controller cascaded to the SoC one.
+- #interrupt-cells = <1>;
+- interrupt-parent : The parent interrupt controller.
+
+Optional node:
+- Child nodes contain in the twl. The twl family is made of several variants
+  that support a different number of features.
+  The children nodes will thus depend of the capability of the variant.
+
+
+Example:
+/*
+ * Integrated Power Management Chip
+ * http://www.ti.com/lit/ds/symlink/twl6030.pdf
+ */
+twl@48 {
+    compatible = "ti,twl6030";
+    reg = <0x48>;
+    interrupts = <39>; /* IRQ_SYS_1N cascaded to gic */
+    interrupt-controller;
+    #interrupt-cells = <1>;
+    interrupt-parent = <&gic>;
+    #address-cells = <1>;
+    #size-cells = <0>;
+
+    twl_rtc {
+        compatible = "ti,twl_rtc";
+        interrupts = <11>;
+        reg = <0>;
+    };
+};

arch/arm/mach-sa1100/assabet.c

@@ -202,6 +202,7 @@ static struct irda_platform_data assabet_irda_data = {
 static struct mcp_plat_data assabet_mcp_data = {
 	.mccr0		= MCCR0_ADM,
 	.sclk_rate	= 11981000,
+	.codec		= "ucb1x00",
 };
 
 static void __init assabet_init(void)
@@ -252,6 +253,17 @@ static void __init assabet_init(void)
 	sa11x0_register_mtd(&assabet_flash_data, assabet_flash_resources,
 			    ARRAY_SIZE(assabet_flash_resources));
 	sa11x0_register_irda(&assabet_irda_data);
+
+	/*
+	 * Setup the PPC unit correctly.
+	 */
+	PPDR &= ~PPC_RXD4;
+	PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
+	PSDR |= PPC_RXD4;
+	PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
+	PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
+
+	ASSABET_BCR_set(ASSABET_BCR_CODEC_RST);
 	sa11x0_register_mcp(&assabet_mcp_data);
 }
 

arch/arm/mach-sa1100/cerf.c

@@ -124,12 +124,23 @@ static void __init cerf_map_io(void)
 static struct mcp_plat_data cerf_mcp_data = {
 	.mccr0		= MCCR0_ADM,
 	.sclk_rate	= 11981000,
+	.codec		= "ucb1x00",
 };
 
 static void __init cerf_init(void)
 {
 	platform_add_devices(cerf_devices, ARRAY_SIZE(cerf_devices));
 	sa11x0_register_mtd(&cerf_flash_data, &cerf_flash_resource, 1);
+
+	/*
+	 * Setup the PPC unit correctly.
+	 */
+	PPDR &= ~PPC_RXD4;
+	PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
+	PSDR |= PPC_RXD4;
+	PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
+	PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
+
 	sa11x0_register_mcp(&cerf_mcp_data);
 }
 

arch/arm/mach-sa1100/collie.c

@@ -27,6 +27,7 @@
 #include <linux/timer.h>
 #include <linux/gpio.h>
 #include <linux/pda_power.h>
+#include <linux/mfd/ucb1x00.h>
 
 #include <mach/hardware.h>
 #include <asm/mach-types.h>
@@ -85,10 +86,15 @@ static struct scoop_pcmcia_config collie_pcmcia_config = {
 	.num_devs	= 1,
 };
 
+static struct ucb1x00_plat_data collie_ucb1x00_data = {
+	.gpio_base	= COLLIE_TC35143_GPIO_BASE,
+};
+
 static struct mcp_plat_data collie_mcp_data = {
 	.mccr0		= MCCR0_ADM | MCCR0_ExtClk,
 	.sclk_rate	= 9216000,
-	.gpio_base	= COLLIE_TC35143_GPIO_BASE,
+	.codec		= "ucb1x00",
+	.codec_pdata	= &collie_ucb1x00_data,
 };
 
 /*
@@ -351,6 +357,16 @@ static void __init collie_init(void)
 
 	sa11x0_register_mtd(&collie_flash_data, collie_flash_resources,
 			    ARRAY_SIZE(collie_flash_resources));
+
+	/*
+	 * Setup the PPC unit correctly.
+	 */
+	PPDR &= ~PPC_RXD4;
+	PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
+	PSDR |= PPC_RXD4;
+	PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
+	PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
+
 	sa11x0_register_mcp(&collie_mcp_data);
 
 	sharpsl_save_param();

arch/arm/mach-sa1100/generic.c

@@ -217,10 +217,15 @@ static struct platform_device sa11x0uart3_device = {
 static struct resource sa11x0mcp_resources[] = {
 	[0] = {
 		.start	= __PREG(Ser4MCCR0),
-		.end	= __PREG(Ser4MCCR0) + 0xffff,
+		.end	= __PREG(Ser4MCCR0) + 0x1C - 1,
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
+		.start	= __PREG(Ser4MCCR1),
+		.end	= __PREG(Ser4MCCR1) + 0x4 - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[2] = {
 		.start	= IRQ_Ser4MCP,
 		.end	= IRQ_Ser4MCP,
 		.flags	= IORESOURCE_IRQ,

arch/arm/mach-sa1100/include/mach/mcp.h

@@ -17,6 +17,8 @@ struct mcp_plat_data {
 	u32 mccr1;
 	unsigned int sclk_rate;
 	int gpio_base;
+	const char *codec;
+	void *codec_pdata;
 };
 
 #endif

arch/arm/mach-sa1100/lart.c

@@ -24,10 +24,20 @@
 static struct mcp_plat_data lart_mcp_data = {
 	.mccr0		= MCCR0_ADM,
 	.sclk_rate	= 11981000,
+	.codec		= "ucb1x00",
 };
 
 static void __init lart_init(void)
 {
+	/*
+	 * Setup the PPC unit correctly.
+	 */
+	PPDR &= ~PPC_RXD4;
+	PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
+	PSDR |= PPC_RXD4;
+	PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
+	PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
+
 	sa11x0_register_mcp(&lart_mcp_data);
 }
 

arch/arm/mach-sa1100/shannon.c

@@ -55,11 +55,22 @@ static struct resource shannon_flash_resource = {
 static struct mcp_plat_data shannon_mcp_data = {
 	.mccr0		= MCCR0_ADM,
 	.sclk_rate	= 11981000,
+	.codec		= "ucb1x00",
 };
 
 static void __init shannon_init(void)
 {
 	sa11x0_register_mtd(&shannon_flash_data, &shannon_flash_resource, 1);
+
+	/*
+	 * Setup the PPC unit correctly.
+	 */
+	PPDR &= ~PPC_RXD4;
+	PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
+	PSDR |= PPC_RXD4;
+	PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
+	PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
+
 	sa11x0_register_mcp(&shannon_mcp_data);
 }
 

arch/arm/mach-sa1100/simpad.c

@@ -14,6 +14,7 @@
 #include <linux/mtd/partitions.h>
 #include <linux/io.h>
 #include <linux/gpio.h>
+#include <linux/mfd/ucb1x00.h>
 
 #include <asm/irq.h>
 #include <mach/hardware.h>
@@ -187,10 +188,15 @@ static struct resource simpad_flash_resources [] = {
 	}
 };
 
+static struct ucb1x00_plat_data simpad_ucb1x00_data = {
+	.gpio_base	= SIMPAD_UCB1X00_GPIO_BASE,
+};
+
 static struct mcp_plat_data simpad_mcp_data = {
 	.mccr0		= MCCR0_ADM,
 	.sclk_rate	= 11981000,
-	.gpio_base	= SIMPAD_UCB1X00_GPIO_BASE,
+	.codec		= "ucb1300",
+	.codec_pdata	= &simpad_ucb1x00_data,
 };
 
 
@@ -378,6 +384,16 @@ static int __init simpad_init(void)
 
 	sa11x0_register_mtd(&simpad_flash_data, simpad_flash_resources,
 			      ARRAY_SIZE(simpad_flash_resources));
+
+	/*
+	 * Setup the PPC unit correctly.
+	 */
+	PPDR &= ~PPC_RXD4;
+	PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
+	PSDR |= PPC_RXD4;
+	PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
+	PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
+
 	sa11x0_register_mcp(&simpad_mcp_data);
 
 	ret = platform_add_devices(devices, ARRAY_SIZE(devices));

arch/arm/mach-ux500/board-mop500.c

@@ -19,11 +19,11 @@
 #include <linux/amba/pl022.h>
 #include <linux/amba/serial.h>
 #include <linux/spi/spi.h>
-#include <linux/mfd/ab8500.h>
+#include <linux/mfd/abx500/ab8500.h>
 #include <linux/regulator/ab8500.h>
 #include <linux/mfd/tc3589x.h>
 #include <linux/mfd/tps6105x.h>
-#include <linux/mfd/ab8500/gpio.h>
+#include <linux/mfd/abx500/ab8500-gpio.h>
 #include <linux/leds-lp5521.h>
 #include <linux/input.h>
 #include <linux/smsc911x.h>

arch/arm/mach-ux500/board-u5500.c

@@ -10,7 +10,7 @@
 #include <linux/amba/bus.h>
 #include <linux/irq.h>
 #include <linux/i2c.h>
-#include <linux/mfd/ab5500/ab5500.h>
+#include <linux/mfd/abx500/ab5500.h>
 
 #include <asm/hardware/gic.h>
 #include <asm/mach/arch.h>

arch/arm/mach-ux500/include/mach/irqs-board-mop500.h

@@ -9,7 +9,7 @@
 #define __MACH_IRQS_BOARD_MOP500_H
 
 /* Number of AB8500 irqs is taken from header file */
-#include <linux/mfd/ab8500.h>
+#include <linux/mfd/abx500/ab8500.h>
 
 #define MOP500_AB8500_IRQ_BASE		IRQ_BOARD_START
 #define MOP500_AB8500_IRQ_END		(MOP500_AB8500_IRQ_BASE \

drivers/gpio/gpio-stmpe.c

@@ -65,7 +65,14 @@ static void stmpe_gpio_set(struct gpio_chip *chip, unsigned offset, int val)
 	u8 reg = stmpe->regs[which] - (offset / 8);
 	u8 mask = 1 << (offset % 8);
 
-	stmpe_reg_write(stmpe, reg, mask);
+	/*
+	 * Some variants have single register for gpio set/clear functionality.
+	 * For them we need to write 0 to clear and 1 to set.
+	 */
+	if (stmpe->regs[STMPE_IDX_GPSR_LSB] == stmpe->regs[STMPE_IDX_GPCR_LSB])
+		stmpe_set_bits(stmpe, reg, mask, val ? mask : 0);
+	else
+		stmpe_reg_write(stmpe, reg, mask);
 }
 
 static int stmpe_gpio_direction_output(struct gpio_chip *chip,
@@ -132,6 +139,10 @@ static int stmpe_gpio_irq_set_type(struct irq_data *d, unsigned int type)
 	if (type == IRQ_TYPE_LEVEL_LOW || type == IRQ_TYPE_LEVEL_HIGH)
 		return -EINVAL;
 
+	/* STMPE801 doesn't have RE and FE registers */
+	if (stmpe_gpio->stmpe->partnum == STMPE801)
+		return 0;
+
 	if (type == IRQ_TYPE_EDGE_RISING)
 		stmpe_gpio->regs[REG_RE][regoffset] |= mask;
 	else
@@ -165,6 +176,11 @@ static void stmpe_gpio_irq_sync_unlock(struct irq_data *d)
 	int i, j;
 
 	for (i = 0; i < CACHE_NR_REGS; i++) {
+		/* STMPE801 doesn't have RE and FE registers */
+		if ((stmpe->partnum == STMPE801) &&
+				(i != REG_IE))
+			continue;
+
 		for (j = 0; j < num_banks; j++) {
 			u8 old = stmpe_gpio->oldregs[i][j];
 			u8 new = stmpe_gpio->regs[i][j];
@@ -241,8 +257,11 @@ static irqreturn_t stmpe_gpio_irq(int irq, void *dev)
 		}
 
 		stmpe_reg_write(stmpe, statmsbreg + i, status[i]);
-		stmpe_reg_write(stmpe, stmpe->regs[STMPE_IDX_GPEDR_MSB] + i,
-				status[i]);
+
+		/* Edge detect register is not present on 801 */
+		if (stmpe->partnum != STMPE801)
+			stmpe_reg_write(stmpe, stmpe->regs[STMPE_IDX_GPEDR_MSB]
+					+ i, status[i]);
 	}
 
 	return IRQ_HANDLED;

drivers/input/misc/ab8500-ponkey.c

@@ -12,7 +12,7 @@
 #include <linux/platform_device.h>
 #include <linux/input.h>
 #include <linux/interrupt.h>
-#include <linux/mfd/ab8500.h>
+#include <linux/mfd/abx500/ab8500.h>
 #include <linux/slab.h>
 
 /**

drivers/leds/Kconfig

@@ -396,6 +396,13 @@ config LEDS_TCA6507
 	  LED driver chips accessed via the I2C bus.
 	  Driver support brightness control and hardware-assisted blinking.
 
+config LEDS_MAX8997
+	tristate "LED support for MAX8997 PMIC"
+	depends on LEDS_CLASS && MFD_MAX8997
+	help
+	  This option enables support for on-chip LED drivers on
+	  MAXIM MAX8997 PMIC.
+
 config LEDS_TRIGGERS
 	bool "LED Trigger support"
 	depends on LEDS_CLASS

drivers/leds/Makefile

@@ -44,6 +44,7 @@ obj-$(CONFIG_LEDS_NS2)			+= leds-ns2.o
 obj-$(CONFIG_LEDS_NETXBIG)		+= leds-netxbig.o
 obj-$(CONFIG_LEDS_ASIC3)		+= leds-asic3.o
 obj-$(CONFIG_LEDS_RENESAS_TPU)		+= leds-renesas-tpu.o
+obj-$(CONFIG_LEDS_MAX8997)		+= leds-max8997.o
 
 # LED SPI Drivers
 obj-$(CONFIG_LEDS_DAC124S085)		+= leds-dac124s085.o

drivers/leds/leds-max8997.c

+/*
+ * leds-max8997.c - LED class driver for MAX8997 LEDs.
+ *
+ * Copyright (C) 2011 Samsung Electronics
+ * Donggeun Kim <dg77.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+#include <linux/leds.h>
+#include <linux/mfd/max8997.h>
+#include <linux/mfd/max8997-private.h>
+#include <linux/platform_device.h>
+
+#define MAX8997_LED_FLASH_SHIFT			3
+#define MAX8997_LED_FLASH_CUR_MASK		0xf8
+#define MAX8997_LED_MOVIE_SHIFT			4
+#define MAX8997_LED_MOVIE_CUR_MASK		0xf0
+
+#define MAX8997_LED_FLASH_MAX_BRIGHTNESS	0x1f
+#define MAX8997_LED_MOVIE_MAX_BRIGHTNESS	0xf
+#define MAX8997_LED_NONE_MAX_BRIGHTNESS		0
+
+#define MAX8997_LED0_FLASH_MASK			0x1
+#define MAX8997_LED0_FLASH_PIN_MASK		0x5
+#define MAX8997_LED0_MOVIE_MASK			0x8
+#define MAX8997_LED0_MOVIE_PIN_MASK		0x28
+
+#define MAX8997_LED1_FLASH_MASK			0x2
+#define MAX8997_LED1_FLASH_PIN_MASK		0x6
+#define MAX8997_LED1_MOVIE_MASK			0x10
+#define MAX8997_LED1_MOVIE_PIN_MASK		0x30
+
+#define MAX8997_LED_BOOST_ENABLE_MASK		(1 << 6)
+
+struct max8997_led {
+	struct max8997_dev *iodev;
+	struct led_classdev cdev;
+	bool enabled;
+	int id;
+	enum max8997_led_mode led_mode;
+	struct mutex mutex;
+};
+
+static void max8997_led_clear_mode(struct max8997_led *led,
+			enum max8997_led_mode mode)
+{
+	struct i2c_client *client = led->iodev->i2c;
+	u8 val = 0, mask = 0;
+	int ret;
+
+	switch (mode) {
+	case MAX8997_FLASH_MODE:
+		mask = led->id ?
+		      MAX8997_LED1_FLASH_MASK : MAX8997_LED0_FLASH_MASK;
+		break;
+	case MAX8997_MOVIE_MODE:
+		mask = led->id ?
+		      MAX8997_LED1_MOVIE_MASK : MAX8997_LED0_MOVIE_MASK;
+		break;
+	case MAX8997_FLASH_PIN_CONTROL_MODE:
+		mask = led->id ?
+		      MAX8997_LED1_FLASH_PIN_MASK : MAX8997_LED0_FLASH_PIN_MASK;
+		break;
+	case MAX8997_MOVIE_PIN_CONTROL_MODE:
+		mask = led->id ?
+		      MAX8997_LED1_MOVIE_PIN_MASK : MAX8997_LED0_MOVIE_PIN_MASK;
+		break;
+	default:
+		break;
+	}
+
+	if (mask) {
+		ret = max8997_update_reg(client,
+				MAX8997_REG_LEN_CNTL, val, mask);
+		if (ret)
+			dev_err(led->iodev->dev,
+				"failed to update register(%d)\n", ret);
+	}
+}
+
+static void max8997_led_set_mode(struct max8997_led *led,
+			enum max8997_led_mode mode)
+{
+	int ret;
+	struct i2c_client *client = led->iodev->i2c;
+	u8 mask = 0;
+
+	/* First, clear the previous mode */
+	max8997_led_clear_mode(led, led->led_mode);
+
+	switch (mode) {
+	case MAX8997_FLASH_MODE:
+		mask = led->id ?
+		      MAX8997_LED1_FLASH_MASK : MAX8997_LED0_FLASH_MASK;
+		led->cdev.max_brightness = MAX8997_LED_FLASH_MAX_BRIGHTNESS;
+		break;
+	case MAX8997_MOVIE_MODE:
+		mask = led->id ?
+		      MAX8997_LED1_MOVIE_MASK : MAX8997_LED0_MOVIE_MASK;
+		led->cdev.max_brightness = MAX8997_LED_MOVIE_MAX_BRIGHTNESS;
+		break;
+	case MAX8997_FLASH_PIN_CONTROL_MODE:
+		mask = led->id ?
+		      MAX8997_LED1_FLASH_PIN_MASK : MAX8997_LED0_FLASH_PIN_MASK;
+		led->cdev.max_brightness = MAX8997_LED_FLASH_MAX_BRIGHTNESS;
+		break;
+	case MAX8997_MOVIE_PIN_CONTROL_MODE:
+		mask = led->id ?
+		      MAX8997_LED1_MOVIE_PIN_MASK : MAX8997_LED0_MOVIE_PIN_MASK;
+		led->cdev.max_brightness = MAX8997_LED_MOVIE_MAX_BRIGHTNESS;
+		break;
+	default:
+		led->cdev.max_brightness = MAX8997_LED_NONE_MAX_BRIGHTNESS;
+		break;
+	}
+
+	if (mask) {
+		ret = max8997_update_reg(client,
+				MAX8997_REG_LEN_CNTL, mask, mask);
+		if (ret)
+			dev_err(led->iodev->dev,
+				"failed to update register(%d)\n", ret);
+	}
+
+	led->led_mode = mode;
+}
+
+static void max8997_led_enable(struct max8997_led *led, bool enable)
+{
+	int ret;
+	struct i2c_client *client = led->iodev->i2c;
+	u8 val = 0, mask = MAX8997_LED_BOOST_ENABLE_MASK;
+
+	if (led->enabled == enable)
+		return;
+
+	val = enable ? MAX8997_LED_BOOST_ENABLE_MASK : 0;
+
+	ret = max8997_update_reg(client, MAX8997_REG_BOOST_CNTL, val, mask);
+	if (ret)
+		dev_err(led->iodev->dev,
+			"failed to update register(%d)\n", ret);
+
+	led->enabled = enable;
+}
+
+static void max8997_led_set_current(struct max8997_led *led,
+				enum led_brightness value)
+{
+	int ret;
+	struct i2c_client *client = led->iodev->i2c;
+	u8 val = 0, mask = 0, reg = 0;
+
+	switch (led->led_mode) {
+	case MAX8997_FLASH_MODE:
+	case MAX8997_FLASH_PIN_CONTROL_MODE:
+		val = value << MAX8997_LED_FLASH_SHIFT;
+		mask = MAX8997_LED_FLASH_CUR_MASK;
+		reg = led->id ? MAX8997_REG_FLASH2_CUR : MAX8997_REG_FLASH1_CUR;
+		break;
+	case MAX8997_MOVIE_MODE:
+	case MAX8997_MOVIE_PIN_CONTROL_MODE:
+		val = value << MAX8997_LED_MOVIE_SHIFT;
+		mask = MAX8997_LED_MOVIE_CUR_MASK;
+		reg = MAX8997_REG_MOVIE_CUR;
+		break;
+	default:
+		break;
+	}
+
+	if (mask) {
+		ret = max8997_update_reg(client, reg, val, mask);
+		if (ret)
+			dev_err(led->iodev->dev,
+				"failed to update register(%d)\n", ret);
+	}
+}
+
+static void max8997_led_brightness_set(struct led_classdev *led_cdev,
+				enum led_brightness value)
+{
+	struct max8997_led *led =
+			container_of(led_cdev, struct max8997_led, cdev);
+
+	if (value) {
+		max8997_led_set_current(led, value);
+		max8997_led_enable(led, true);
+	} else {
+		max8997_led_set_current(led, value);
+		max8997_led_enable(led, false);
+	}
+}
+
+static ssize_t max8997_led_show_mode(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct led_classdev *led_cdev = dev_get_drvdata(dev);
+	struct max8997_led *led =
+			container_of(led_cdev, struct max8997_led, cdev);
+	ssize_t ret = 0;
+
+	mutex_lock(&led->mutex);
+
+	switch (led->led_mode) {
+	case MAX8997_FLASH_MODE:
+		ret += sprintf(buf, "FLASH\n");
+		break;
+	case MAX8997_MOVIE_MODE:
+		ret += sprintf(buf, "MOVIE\n");
+		break;
+	case MAX8997_FLASH_PIN_CONTROL_MODE:
+		ret += sprintf(buf, "FLASH_PIN_CONTROL\n");
+		break;
+	case MAX8997_MOVIE_PIN_CONTROL_MODE:
+		ret += sprintf(buf, "MOVIE_PIN_CONTROL\n");
+		break;
+	default:
+		ret += sprintf(buf, "NONE\n");
+		break;
+	}
+
+	mutex_unlock(&led->mutex);
+
+	return ret;
+}
+
+static ssize_t max8997_led_store_mode(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf, size_t size)
+{
+	struct led_classdev *led_cdev = dev_get_drvdata(dev);
+	struct max8997_led *led =
+			container_of(led_cdev, struct max8997_led, cdev);
+	enum max8997_led_mode mode;
+
+	mutex_lock(&led->mutex);
+
+	if (!strncmp(buf, "FLASH_PIN_CONTROL", 17))
+		mode = MAX8997_FLASH_PIN_CONTROL_MODE;
+	else if (!strncmp(buf, "MOVIE_PIN_CONTROL", 17))
+		mode = MAX8997_MOVIE_PIN_CONTROL_MODE;
+	else if (!strncmp(buf, "FLASH", 5))
+		mode = MAX8997_FLASH_MODE;
+	else if (!strncmp(buf, "MOVIE", 5))
+		mode = MAX8997_MOVIE_MODE;
+	else
+		mode = MAX8997_NONE;
+
+	max8997_led_set_mode(led, mode);
+
+	mutex_unlock(&led->mutex);
+
+	return size;
+}
+
+static DEVICE_ATTR(mode, 0644, max8997_led_show_mode, max8997_led_store_mode);
+
+static int __devinit max8997_led_probe(struct platform_device *pdev)
+{
+	struct max8997_dev *iodev = dev_get_drvdata(pdev->dev.parent);
+	struct max8997_platform_data *pdata = dev_get_platdata(iodev->dev);
+	struct max8997_led *led;
+	char name[20];
+	int ret = 0;
+
+	if (pdata == NULL) {
+		dev_err(&pdev->dev, "no platform data\n");
+		return -ENODEV;
+	}
+
+	led = kzalloc(sizeof(*led), GFP_KERNEL);
+	if (led == NULL) {
+		ret = -ENOMEM;
+		goto err_mem;
+	}
+
+	led->id = pdev->id;
+	snprintf(name, sizeof(name), "max8997-led%d", pdev->id);
+
+	led->cdev.name = name;
+	led->cdev.brightness_set = max8997_led_brightness_set;
+	led->cdev.flags |= LED_CORE_SUSPENDRESUME;
+	led->cdev.brightness = 0;
+	led->iodev = iodev;
+
+	/* initialize mode and brightness according to platform_data */
+	if (pdata->led_pdata) {
+		u8 mode = 0, brightness = 0;
+
+		mode = pdata->led_pdata->mode[led->id];
+		brightness = pdata->led_pdata->brightness[led->id];
+
+		max8997_led_set_mode(led, pdata->led_pdata->mode[led->id]);
+
+		if (brightness > led->cdev.max_brightness)
+			brightness = led->cdev.max_brightness;
+		max8997_led_set_current(led, brightness);
+		led->cdev.brightness = brightness;
+	} else {
+		max8997_led_set_mode(led, MAX8997_NONE);
+		max8997_led_set_current(led, 0);
+	}
+
+	mutex_init(&led->mutex);
+
+	platform_set_drvdata(pdev, led);
+
+	ret = led_classdev_register(&pdev->dev, &led->cdev);
+	if (ret < 0)
+		goto err_led;
+
+	ret = device_create_file(led->cdev.dev, &dev_attr_mode);
+	if (ret != 0) {
+		dev_err(&pdev->dev,
+			"failed to create file: %d\n", ret);
+		goto err_file;
+	}
+
+	return 0;
+
+err_file:
+	led_classdev_unregister(&led->cdev);
+err_led:
+	kfree(led);
+err_mem:
+	return ret;
+}
+
+static int __devexit max8997_led_remove(struct platform_device *pdev)
+{
+	struct max8997_led *led = platform_get_drvdata(pdev);
+
+	device_remove_file(led->cdev.dev, &dev_attr_mode);
+	led_classdev_unregister(&led->cdev);
+	kfree(led);
+
+	return 0;
+}
+
+static struct platform_driver max8997_led_driver = {
+	.driver = {
+		.name  = "max8997-led",
+		.owner = THIS_MODULE,
+	},
+	.probe  = max8997_led_probe,
+	.remove = __devexit_p(max8997_led_remove),
+};
+
+static int __init max8997_led_init(void)
+{
+	return platform_driver_register(&max8997_led_driver);
+}
+module_init(max8997_led_init);
+
+static void __exit max8997_led_exit(void)
+{
+	platform_driver_unregister(&max8997_led_driver);
+}
+module_exit(max8997_led_exit);
+
+MODULE_AUTHOR("Donggeun Kim <dg77.kim@samsung.com>");
+MODULE_DESCRIPTION("MAX8997 LED driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:max8997-led");

drivers/mfd/88pm860x-i2c.c

@@ -12,51 +12,20 @@
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/i2c.h>
+#include <linux/err.h>
+#include <linux/regmap.h>
 #include <linux/mfd/88pm860x.h>
 #include <linux/slab.h>
 
-static inline int pm860x_read_device(struct i2c_client *i2c,
-				     int reg, int bytes, void *dest)
-{
-	unsigned char data;
-	int ret;
-
-	data = (unsigned char)reg;
-	ret = i2c_master_send(i2c, &data, 1);
-	if (ret < 0)
-		return ret;
-
-	ret = i2c_master_recv(i2c, dest, bytes);
-	if (ret < 0)
-		return ret;
-	return 0;
-}
-
-static inline int pm860x_write_device(struct i2c_client *i2c,
-				      int reg, int bytes, void *src)
-{
-	unsigned char buf[bytes + 1];
-	int ret;
-
-	buf[0] = (unsigned char)reg;
-	memcpy(&buf[1], src, bytes);
-
-	ret = i2c_master_send(i2c, buf, bytes + 1);
-	if (ret < 0)
-		return ret;
-	return 0;
-}
-
 int pm860x_reg_read(struct i2c_client *i2c, int reg)
 {
 	struct pm860x_chip *chip = i2c_get_clientdata(i2c);
-	unsigned char data;
+	struct regmap *map = (i2c == chip->client) ? chip->regmap
+				: chip->regmap_companion;
+	unsigned int data;
 	int ret;
 
-	mutex_lock(&chip->io_lock);
-	ret = pm860x_read_device(i2c, reg, 1, &data);
-	mutex_unlock(&chip->io_lock);
-
+	ret = regmap_read(map, reg, &data);
 	if (ret < 0)
 		return ret;
 	else
@@ -68,12 +37,11 @@ int pm860x_reg_write(struct i2c_client *i2c, int reg,
 		     unsigned char data)
 {
 	struct pm860x_chip *chip = i2c_get_clientdata(i2c);
+	struct regmap *map = (i2c == chip->client) ? chip->regmap
+				: chip->regmap_companion;
 	int ret;
 
-	mutex_lock(&chip->io_lock);
-	ret = pm860x_write_device(i2c, reg, 1, &data);
-	mutex_unlock(&chip->io_lock);
-
+	ret = regmap_write(map, reg, data);
 	return ret;
 }
 EXPORT_SYMBOL(pm860x_reg_write);
@@ -82,12 +50,11 @@ int pm860x_bulk_read(struct i2c_client *i2c, int reg,
 		     int count, unsigned char *buf)
 {
 	struct pm860x_chip *chip = i2c_get_clientdata(i2c);
+	struct regmap *map = (i2c == chip->client) ? chip->regmap
+				: chip->regmap_companion;
 	int ret;
 
-	mutex_lock(&chip->io_lock);
-	ret = pm860x_read_device(i2c, reg, count, buf);
-	mutex_unlock(&chip->io_lock);
-
+	ret = regmap_raw_read(map, reg, buf, count);
 	return ret;
 }
 EXPORT_SYMBOL(pm860x_bulk_read);
@@ -96,12 +63,11 @@ int pm860x_bulk_write(struct i2c_client *i2c, int reg,
 		      int count, unsigned char *buf)
 {
 	struct pm860x_chip *chip = i2c_get_clientdata(i2c);
+	struct regmap *map = (i2c == chip->client) ? chip->regmap
+				: chip->regmap_companion;
 	int ret;
 
-	mutex_lock(&chip->io_lock);
-	ret = pm860x_write_device(i2c, reg, count, buf);
-	mutex_unlock(&chip->io_lock);
-
+	ret = regmap_raw_write(map, reg, buf, count);
 	return ret;
 }
 EXPORT_SYMBOL(pm860x_bulk_write);
@@ -110,39 +76,78 @@ int pm860x_set_bits(struct i2c_client *i2c, int reg,
 		    unsigned char mask, unsigned char data)
 {
 	struct pm860x_chip *chip = i2c_get_clientdata(i2c);
-	unsigned char value;
+	struct regmap *map = (i2c == chip->client) ? chip->regmap
+				: chip->regmap_companion;
 	int ret;
 
-	mutex_lock(&chip->io_lock);
-	ret = pm860x_read_device(i2c, reg, 1, &value);
-	if (ret < 0)
-		goto out;
-	value &= ~mask;
-	value |= data;
-	ret = pm860x_write_device(i2c, reg, 1, &value);
-out:
-	mutex_unlock(&chip->io_lock);
+	ret = regmap_update_bits(map, reg, mask, data);
 	return ret;
 }
 EXPORT_SYMBOL(pm860x_set_bits);
 
+static int read_device(struct i2c_client *i2c, int reg,
+		       int bytes, void *dest)
+{
+	unsigned char msgbuf0[I2C_SMBUS_BLOCK_MAX + 3];
+	unsigned char msgbuf1[I2C_SMBUS_BLOCK_MAX + 2];
+	struct i2c_adapter *adap = i2c->adapter;
+	struct i2c_msg msg[2] = {{i2c->addr, 0, 1, msgbuf0},
+				 {i2c->addr, I2C_M_RD, 0, msgbuf1},
+				};
+	int num = 1, ret = 0;
+
+	if (dest == NULL)
+		return -EINVAL;
+	msgbuf0[0] = (unsigned char)reg;	/* command */
+	msg[1].len = bytes;
+
+	/* if data needs to read back, num should be 2 */
+	if (bytes > 0)
+		num = 2;
+	ret = adap->algo->master_xfer(adap, msg, num);
+	memcpy(dest, msgbuf1, bytes);
+	if (ret < 0)
+		return ret;
+	return 0;
+}
+
+static int write_device(struct i2c_client *i2c, int reg,
+			int bytes, void *src)
+{
+	unsigned char buf[bytes + 1];
+	struct i2c_adapter *adap = i2c->adapter;
+	struct i2c_msg msg;
+	int ret;
+
+	buf[0] = (unsigned char)reg;
+	memcpy(&buf[1], src, bytes);
+	msg.addr = i2c->addr;
+	msg.flags = 0;
+	msg.len = bytes + 1;
+	msg.buf = buf;
+
+	ret = adap->algo->master_xfer(adap, &msg, 1);
+	if (ret < 0)
+		return ret;
+	return 0;
+}
+
 int pm860x_page_reg_read(struct i2c_client *i2c, int reg)
 {
-	struct pm860x_chip *chip = i2c_get_clientdata(i2c);
 	unsigned char zero = 0;
 	unsigned char data;
 	int ret;
 
-	mutex_lock(&chip->io_lock);
-	pm860x_write_device(i2c, 0xFA, 0, &zero);
-	pm860x_write_device(i2c, 0xFB, 0, &zero);
-	pm860x_write_device(i2c, 0xFF, 0, &zero);
-	ret = pm860x_read_device(i2c, reg, 1, &data);
+	i2c_lock_adapter(i2c->adapter);
+	read_device(i2c, 0xFA, 0, &zero);
+	read_device(i2c, 0xFB, 0, &zero);
+	read_device(i2c, 0xFF, 0, &zero);
+	ret = read_device(i2c, reg, 1, &data);
 	if (ret >= 0)
 		ret = (int)data;
-	pm860x_write_device(i2c, 0xFE, 0, &zero);
-	pm860x_write_device(i2c, 0xFC, 0, &zero);
-	mutex_unlock(&chip->io_lock);
+	read_device(i2c, 0xFE, 0, &zero);
+	read_device(i2c, 0xFC, 0, &zero);
+	i2c_unlock_adapter(i2c->adapter);
 	return ret;
 }
 EXPORT_SYMBOL(pm860x_page_reg_read);
@@ -150,18 +155,17 @@ EXPORT_SYMBOL(pm860x_page_reg_read);
 int pm860x_page_reg_write(struct i2c_client *i2c, int reg,
 			  unsigned char data)
 {
-	struct pm860x_chip *chip = i2c_get_clientdata(i2c);
 	unsigned char zero;
 	int ret;
 
-	mutex_lock(&chip->io_lock);
-	pm860x_write_device(i2c, 0xFA, 0, &zero);
-	pm860x_write_device(i2c, 0xFB, 0, &zero);
-	pm860x_write_device(i2c, 0xFF, 0, &zero);
-	ret = pm860x_write_device(i2c, reg, 1, &data);
-	pm860x_write_device(i2c, 0xFE, 0, &zero);
-	pm860x_write_device(i2c, 0xFC, 0, &zero);
-	mutex_unlock(&chip->io_lock);
+	i2c_lock_adapter(i2c->adapter);
+	read_device(i2c, 0xFA, 0, &zero);
+	read_device(i2c, 0xFB, 0, &zero);
+	read_device(i2c, 0xFF, 0, &zero);
+	ret = write_device(i2c, reg, 1, &data);
+	read_device(i2c, 0xFE, 0, &zero);
+	read_device(i2c, 0xFC, 0, &zero);
+	i2c_unlock_adapter(i2c->adapter);
 	return ret;
 }
 EXPORT_SYMBOL(pm860x_page_reg_write);
@@ -169,18 +173,17 @@ EXPORT_SYMBOL(pm860x_page_reg_write);
 int pm860x_page_bulk_read(struct i2c_client *i2c, int reg,
 			  int count, unsigned char *buf)
 {
-	struct pm860x_chip *chip = i2c_get_clientdata(i2c);
 	unsigned char zero = 0;
 	int ret;
 
-	mutex_lock(&chip->io_lock);
-	pm860x_write_device(i2c, 0xFA, 0, &zero);
-	pm860x_write_device(i2c, 0xFB, 0, &zero);
-	pm860x_write_device(i2c, 0xFF, 0, &zero);
-	ret = pm860x_read_device(i2c, reg, count, buf);
-	pm860x_write_device(i2c, 0xFE, 0, &zero);
-	pm860x_write_device(i2c, 0xFC, 0, &zero);
-	mutex_unlock(&chip->io_lock);
+	i2c_lock_adapter(i2c->adapter);
+	read_device(i2c, 0xfa, 0, &zero);
+	read_device(i2c, 0xfb, 0, &zero);
+	read_device(i2c, 0xff, 0, &zero);
+	ret = read_device(i2c, reg, count, buf);
+	read_device(i2c, 0xFE, 0, &zero);
+	read_device(i2c, 0xFC, 0, &zero);
+	i2c_unlock_adapter(i2c->adapter);
 	return ret;
 }
 EXPORT_SYMBOL(pm860x_page_bulk_read);
@@ -188,18 +191,18 @@ EXPORT_SYMBOL(pm860x_page_bulk_read);
 int pm860x_page_bulk_write(struct i2c_client *i2c, int reg,
 			   int count, unsigned char *buf)
 {
-	struct pm860x_chip *chip = i2c_get_clientdata(i2c);
 	unsigned char zero = 0;
 	int ret;
 
-	mutex_lock(&chip->io_lock);
-	pm860x_write_device(i2c, 0xFA, 0, &zero);
-	pm860x_write_device(i2c, 0xFB, 0, &zero);
-	pm860x_write_device(i2c, 0xFF, 0, &zero);
-	ret = pm860x_write_device(i2c, reg, count, buf);
-	pm860x_write_device(i2c, 0xFE, 0, &zero);
-	pm860x_write_device(i2c, 0xFC, 0, &zero);
-	mutex_unlock(&chip->io_lock);
+	i2c_lock_adapter(i2c->adapter);
+	read_device(i2c, 0xFA, 0, &zero);
+	read_device(i2c, 0xFB, 0, &zero);
+	read_device(i2c, 0xFF, 0, &zero);
+	ret = write_device(i2c, reg, count, buf);
+	read_device(i2c, 0xFE, 0, &zero);
+	read_device(i2c, 0xFC, 0, &zero);
+	i2c_unlock_adapter(i2c->adapter);
+	i2c_unlock_adapter(i2c->adapter);
 	return ret;
 }
 EXPORT_SYMBOL(pm860x_page_bulk_write);
@@ -207,25 +210,24 @@ EXPORT_SYMBOL(pm860x_page_bulk_write);
 int pm860x_page_set_bits(struct i2c_client *i2c, int reg,
 			 unsigned char mask, unsigned char data)
 {
-	struct pm860x_chip *chip = i2c_get_clientdata(i2c);
 	unsigned char zero;
 	unsigned char value;
 	int ret;
 
-	mutex_lock(&chip->io_lock);
-	pm860x_write_device(i2c, 0xFA, 0, &zero);
-	pm860x_write_device(i2c, 0xFB, 0, &zero);
-	pm860x_write_device(i2c, 0xFF, 0, &zero);
-	ret = pm860x_read_device(i2c, reg, 1, &value);
+	i2c_lock_adapter(i2c->adapter);
+	read_device(i2c, 0xFA, 0, &zero);
+	read_device(i2c, 0xFB, 0, &zero);
+	read_device(i2c, 0xFF, 0, &zero);
+	ret = read_device(i2c, reg, 1, &value);
 	if (ret < 0)
 		goto out;
 	value &= ~mask;
 	value |= data;
-	ret = pm860x_write_device(i2c, reg, 1, &value);
+	ret = write_device(i2c, reg, 1, &value);
 out:
-	pm860x_write_device(i2c, 0xFE, 0, &zero);
-	pm860x_write_device(i2c, 0xFC, 0, &zero);
-	mutex_unlock(&chip->io_lock);
+	read_device(i2c, 0xFE, 0, &zero);
+	read_device(i2c, 0xFC, 0, &zero);
+	i2c_unlock_adapter(i2c->adapter);
 	return ret;
 }
 EXPORT_SYMBOL(pm860x_page_set_bits);
@@ -257,11 +259,17 @@ static int verify_addr(struct i2c_client *i2c)
 	return 0;
 }
 
+static struct regmap_config pm860x_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+};
+
 static int __devinit pm860x_probe(struct i2c_client *client,
 				  const struct i2c_device_id *id)
 {
 	struct pm860x_platform_data *pdata = client->dev.platform_data;
 	struct pm860x_chip *chip;
+	int ret;
 
 	if (!pdata) {
 		pr_info("No platform data in %s!\n", __func__);
@@ -273,10 +281,17 @@ static int __devinit pm860x_probe(struct i2c_client *client,
 		return -ENOMEM;
 
 	chip->id = verify_addr(client);
+	chip->regmap = regmap_init_i2c(client, &pm860x_regmap_config);
+	if (IS_ERR(chip->regmap)) {
+		ret = PTR_ERR(chip->regmap);
+		dev_err(&client->dev, "Failed to allocate register map: %d\n",
+				ret);
+		kfree(chip);
+		return ret;
+	}
 	chip->client = client;
 	i2c_set_clientdata(client, chip);
 	chip->dev = &client->dev;
-	mutex_init(&chip->io_lock);
 	dev_set_drvdata(chip->dev, chip);
 
 	/*
@@ -290,6 +305,14 @@ static int __devinit pm860x_probe(struct i2c_client *client,
 		chip->companion_addr = pdata->companion_addr;
 		chip->companion = i2c_new_dummy(chip->client->adapter,
 						chip->companion_addr);
+		chip->regmap_companion = regmap_init_i2c(chip->companion,
+							&pm860x_regmap_config);
+		if (IS_ERR(chip->regmap_companion)) {
+			ret = PTR_ERR(chip->regmap_companion);
+			dev_err(&chip->companion->dev,
+				"Failed to allocate register map: %d\n", ret);
+			return ret;
+		}
 		i2c_set_clientdata(chip->companion, chip);
 	}
 
@@ -302,7 +325,11 @@ static int __devexit pm860x_remove(struct i2c_client *client)
 	struct pm860x_chip *chip = i2c_get_clientdata(client);
 
 	pm860x_device_exit(chip);
-	i2c_unregister_device(chip->companion);
+	if (chip->companion) {
+		regmap_exit(chip->regmap_companion);
+		i2c_unregister_device(chip->companion);
+	}
+	regmap_exit(chip->regmap);
 	kfree(chip);
 	return 0;
 }

drivers/mfd/Kconfig

@@ -12,6 +12,7 @@ config MFD_CORE
 config MFD_88PM860X
 	bool "Support Marvell 88PM8606/88PM8607"
 	depends on I2C=y && GENERIC_HARDIRQS
+	select REGMAP_I2C
 	select MFD_CORE
 	help
 	  This supports for Marvell 88PM8606/88PM8607 Power Management IC.
@@ -199,7 +200,7 @@ config MENELAUS
 
 config TWL4030_CORE
 	bool "Texas Instruments TWL4030/TWL5030/TWL6030/TPS659x0 Support"
-	depends on I2C=y && GENERIC_HARDIRQS
+	depends on I2C=y && GENERIC_HARDIRQS && IRQ_DOMAIN
 	help
 	  Say yes here if you have TWL4030 / TWL6030 family chip on your board.
 	  This core driver provides register access and IRQ handling
@@ -257,7 +258,7 @@ config TWL6040_CORE
 
 config MFD_STMPE
 	bool "Support STMicroelectronics STMPE"
-	depends on I2C=y && GENERIC_HARDIRQS
+	depends on (I2C=y || SPI_MASTER=y) && GENERIC_HARDIRQS
 	select MFD_CORE
 	help
 	  Support for the STMPE family of I/O Expanders from
@@ -278,6 +279,23 @@ config MFD_STMPE
 		Keypad: stmpe-keypad
 		Touchscreen: stmpe-ts
 
+menu "STMPE Interface Drivers"
+depends on MFD_STMPE
+
+config STMPE_I2C
+	bool "STMPE I2C Inteface"
+	depends on I2C=y
+	default y
+	help
+	  This is used to enable I2C interface of STMPE
+
+config STMPE_SPI
+	bool "STMPE SPI Inteface"
+	depends on SPI_MASTER
+	help
+	  This is used to enable SPI interface of STMPE
+endmenu
+
 config MFD_TC3589X
 	bool "Support Toshiba TC35892 and variants"
 	depends on I2C=y && GENERIC_HARDIRQS
@@ -311,7 +329,7 @@ config MFD_TC6387XB
 
 config MFD_TC6393XB
 	bool "Support Toshiba TC6393XB"
-	depends on GPIOLIB && ARM
+	depends on GPIOLIB && ARM && HAVE_CLK
 	select MFD_CORE
 	select MFD_TMIO
 	help
@@ -399,6 +417,17 @@ config MFD_MAX8998
 	  additional drivers must be enabled in order to use the functionality
 	  of the device.
 
+config MFD_S5M_CORE
+	bool "SAMSUNG S5M Series Support"
+	depends on I2C=y && GENERIC_HARDIRQS
+	select MFD_CORE
+	select REGMAP_I2C
+	help
+	 Support for the Samsung Electronics S5M MFD series.
+	 This driver provies common support for accessing the device,
+	 additional drivers must be enabled in order to use the functionality
+	 of the device
+
 config MFD_WM8400
 	tristate "Support Wolfson Microelectronics WM8400"
 	select MFD_CORE

drivers/mfd/Makefile

@@ -16,6 +16,8 @@ obj-$(CONFIG_MFD_DM355EVM_MSP)	+= dm355evm_msp.o
 obj-$(CONFIG_MFD_TI_SSP)	+= ti-ssp.o
 
 obj-$(CONFIG_MFD_STMPE)		+= stmpe.o
+obj-$(CONFIG_STMPE_I2C)		+= stmpe-i2c.o
+obj-$(CONFIG_STMPE_SPI)		+= stmpe-spi.o
 obj-$(CONFIG_MFD_TC3589X)	+= tc3589x.o
 obj-$(CONFIG_MFD_T7L66XB)	+= t7l66xb.o tmio_core.o
 obj-$(CONFIG_MFD_TC6387XB)	+= tc6387xb.o tmio_core.o
@@ -109,3 +111,4 @@ obj-$(CONFIG_MFD_PM8XXX_IRQ) 	+= pm8xxx-irq.o
 obj-$(CONFIG_TPS65911_COMPARATOR)	+= tps65911-comparator.o
 obj-$(CONFIG_MFD_AAT2870_CORE)	+= aat2870-core.o
 obj-$(CONFIG_MFD_INTEL_MSIC)	+= intel_msic.o
+obj-$(CONFIG_MFD_S5M_CORE)	+= s5m-core.o s5m-irq.o

drivers/mfd/aat2870-core.c

@@ -407,13 +407,13 @@ static int aat2870_i2c_probe(struct i2c_client *client,
 		aat2870->init(aat2870);
 
 	if (aat2870->en_pin >= 0) {
-		ret = gpio_request(aat2870->en_pin, "aat2870-en");
+		ret = gpio_request_one(aat2870->en_pin, GPIOF_OUT_INIT_HIGH,
+				       "aat2870-en");
 		if (ret < 0) {
 			dev_err(&client->dev,
 				"Failed to request GPIO %d\n", aat2870->en_pin);
 			goto out_kfree;
 		}
-		gpio_direction_output(aat2870->en_pin, 1);
 	}
 
 	aat2870_enable(aat2870);
@@ -468,9 +468,10 @@ static int aat2870_i2c_remove(struct i2c_client *client)
 	return 0;
 }
 
-#ifdef CONFIG_PM
-static int aat2870_i2c_suspend(struct i2c_client *client, pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int aat2870_i2c_suspend(struct device *dev)
 {
+	struct i2c_client *client = to_i2c_client(dev);
 	struct aat2870_data *aat2870 = i2c_get_clientdata(client);
 
 	aat2870_disable(aat2870);
@@ -478,8 +479,9 @@ static int aat2870_i2c_suspend(struct i2c_client *client, pm_message_t state)
 	return 0;
 }
 
-static int aat2870_i2c_resume(struct i2c_client *client)
+static int aat2870_i2c_resume(struct device *dev)
 {
+	struct i2c_client *client = to_i2c_client(dev);
 	struct aat2870_data *aat2870 = i2c_get_clientdata(client);
 	struct aat2870_register *reg = NULL;
 	int i;
@@ -495,12 +497,12 @@ static int aat2870_i2c_resume(struct i2c_client *client)
 
 	return 0;
 }
-#else
-#define aat2870_i2c_suspend	NULL
-#define aat2870_i2c_resume	NULL
-#endif /* CONFIG_PM */
+#endif /* CONFIG_PM_SLEEP */
+
+static SIMPLE_DEV_PM_OPS(aat2870_pm_ops, aat2870_i2c_suspend,
+			 aat2870_i2c_resume);
 
-static struct i2c_device_id aat2870_i2c_id_table[] = {
+static const struct i2c_device_id aat2870_i2c_id_table[] = {
 	{ "aat2870", 0 },
 	{ }
 };
@@ -510,11 +512,10 @@ static struct i2c_driver aat2870_i2c_driver = {
 	.driver = {
 		.name	= "aat2870",
 		.owner	= THIS_MODULE,
+		.pm	= &aat2870_pm_ops,
 	},
 	.probe		= aat2870_i2c_probe,
 	.remove		= aat2870_i2c_remove,
-	.suspend	= aat2870_i2c_suspend,
-	.resume		= aat2870_i2c_resume,
 	.id_table	= aat2870_i2c_id_table,
 };
 

drivers/mfd/ab5500-core.c

@@ -22,8 +22,8 @@
 #include <linux/irq.h>
 #include <linux/interrupt.h>
 #include <linux/random.h>
-#include <linux/mfd/ab5500/ab5500.h>
 #include <linux/mfd/abx500.h>
+#include <linux/mfd/abx500/ab5500.h>
 #include <linux/list.h>
 #include <linux/bitops.h>
 #include <linux/spinlock.h>

drivers/mfd/ab5500-debugfs.c

@@ -7,8 +7,8 @@
 #include <linux/module.h>
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
-#include <linux/mfd/ab5500/ab5500.h>
 #include <linux/mfd/abx500.h>
+#include <linux/mfd/abx500/ab5500.h>
 #include <linux/uaccess.h>
 
 #include "ab5500-core.h"

drivers/mfd/ab8500-core.c

@@ -17,7 +17,7 @@
 #include <linux/platform_device.h>
 #include <linux/mfd/core.h>
 #include <linux/mfd/abx500.h>
-#include <linux/mfd/ab8500.h>
+#include <linux/mfd/abx500/ab8500.h>
 #include <linux/regulator/ab8500.h>
 
 /*

drivers/mfd/ab8500-debugfs.c

@@ -13,7 +13,7 @@
 #include <linux/platform_device.h>
 
 #include <linux/mfd/abx500.h>
-#include <linux/mfd/ab8500.h>
+#include <linux/mfd/abx500/ab8500.h>
 
 static u32 debug_bank;
 static u32 debug_address;

drivers/mfd/ab8500-gpadc.c

@@ -18,9 +18,9 @@
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/list.h>
-#include <linux/mfd/ab8500.h>
 #include <linux/mfd/abx500.h>
-#include <linux/mfd/ab8500/gpadc.h>
+#include <linux/mfd/abx500/ab8500.h>
+#include <linux/mfd/abx500/ab8500-gpadc.h>
 
 /*
  * GPADC register offsets

drivers/mfd/ab8500-i2c.c

@@ -10,7 +10,7 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
-#include <linux/mfd/ab8500.h>
+#include <linux/mfd/abx500/ab8500.h>
 #include <linux/mfd/db8500-prcmu.h>
 
 static int ab8500_i2c_write(struct ab8500 *ab8500, u16 addr, u8 data)

drivers/mfd/ab8500-sysctrl.c

@@ -7,9 +7,9 @@
 #include <linux/err.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
-#include <linux/mfd/ab8500.h>
 #include <linux/mfd/abx500.h>
-#include <linux/mfd/ab8500/sysctrl.h>
+#include <linux/mfd/abx500/ab8500.h>
+#include <linux/mfd/abx500/ab8500-sysctrl.h>
 
 static struct device *sysctrl_dev;
 

drivers/mfd/cs5535-mfd.c

@@ -172,14 +172,14 @@ static void __devexit cs5535_mfd_remove(struct pci_dev *pdev)
 	pci_disable_device(pdev);
 }
 
-static struct pci_device_id cs5535_mfd_pci_tbl[] = {
+static DEFINE_PCI_DEVICE_TABLE(cs5535_mfd_pci_tbl) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_CS5535_ISA) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA) },
 	{ 0, }
 };
 MODULE_DEVICE_TABLE(pci, cs5535_mfd_pci_tbl);
 
-static struct pci_driver cs5535_mfd_drv = {
+static struct pci_driver cs5535_mfd_driver = {
 	.name = DRV_NAME,
 	.id_table = cs5535_mfd_pci_tbl,
 	.probe = cs5535_mfd_probe,
@@ -188,12 +188,12 @@ static struct pci_driver cs5535_mfd_drv = {
 
 static int __init cs5535_mfd_init(void)
 {
-	return pci_register_driver(&cs5535_mfd_drv);
+	return pci_register_driver(&cs5535_mfd_driver);
 }
 
 static void __exit cs5535_mfd_exit(void)
 {
-	pci_unregister_driver(&cs5535_mfd_drv);
+	pci_unregister_driver(&cs5535_mfd_driver);
 }
 
 module_init(cs5535_mfd_init);

drivers/mfd/dm355evm_msp.c

@@ -308,8 +308,7 @@ static int add_children(struct i2c_client *client)
 	for (i = 0; i < ARRAY_SIZE(config_inputs); i++) {
 		int gpio = dm355evm_msp_gpio.base + config_inputs[i].offset;
 
-		gpio_request(gpio, config_inputs[i].label);
-		gpio_direction_input(gpio);
+		gpio_request_one(gpio, GPIOF_IN, config_inputs[i].label);
 
 		/* make it easy for userspace to see these */
 		gpio_export(gpio, false);

drivers/mfd/intel_msic.c

@@ -485,17 +485,7 @@ static struct platform_driver intel_msic_driver = {
 	},
 };
 
-static int __init intel_msic_init(void)
-{
-	return platform_driver_register(&intel_msic_driver);
-}
-module_init(intel_msic_init);
-
-static void __exit intel_msic_exit(void)
-{
-	platform_driver_unregister(&intel_msic_driver);
-}
-module_exit(intel_msic_exit);
+module_platform_driver(intel_msic_driver);
 
 MODULE_DESCRIPTION("Driver for Intel MSIC");
 MODULE_AUTHOR("Mika Westerberg <mika.westerberg@linux.intel.com>");

drivers/mfd/jz4740-adc.c

@@ -181,7 +181,7 @@ static struct resource jz4740_battery_resources[] = {
 	},
 };
 
-const struct mfd_cell jz4740_adc_cells[] = {
+static struct mfd_cell jz4740_adc_cells[] = {
 	{
 		.id = 0,
 		.name = "jz4740-hwmon",
@@ -338,17 +338,7 @@ static struct platform_driver jz4740_adc_driver = {
 	},
 };
 
-static int __init jz4740_adc_init(void)
-{
-	return platform_driver_register(&jz4740_adc_driver);
-}
-module_init(jz4740_adc_init);
-
-static void __exit jz4740_adc_exit(void)
-{
-	platform_driver_unregister(&jz4740_adc_driver);
-}
-module_exit(jz4740_adc_exit);
+module_platform_driver(jz4740_adc_driver);
 
 MODULE_DESCRIPTION("JZ4740 SoC ADC driver");
 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");

drivers/mfd/lpc_sch.c

@@ -74,7 +74,7 @@ static struct mfd_cell tunnelcreek_cells[] = {
 	},
 };
 
-static struct pci_device_id lpc_sch_ids[] = {
+static DEFINE_PCI_DEVICE_TABLE(lpc_sch_ids) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SCH_LPC) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ITC_LPC) },
 	{ 0, }

drivers/mfd/max8925-i2c.c

@@ -161,6 +161,8 @@ static int __devinit max8925_probe(struct i2c_client *client,
 	chip->adc = i2c_new_dummy(chip->i2c->adapter, ADC_I2C_ADDR);
 	i2c_set_clientdata(chip->adc, chip);
 
+	device_init_wakeup(&client->dev, 1);
+
 	max8925_device_init(chip, pdata);
 
 	return 0;
@@ -177,10 +179,35 @@ static int __devexit max8925_remove(struct i2c_client *client)
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int max8925_suspend(struct device *dev)
+{
+	struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+	struct max8925_chip *chip = i2c_get_clientdata(client);
+
+	if (device_may_wakeup(dev) && chip->wakeup_flag)
+		enable_irq_wake(chip->core_irq);
+	return 0;
+}
+
+static int max8925_resume(struct device *dev)
+{
+	struct i2c_client *client = container_of(dev, struct i2c_client, dev);
+	struct max8925_chip *chip = i2c_get_clientdata(client);
+
+	if (device_may_wakeup(dev) && chip->wakeup_flag)
+		disable_irq_wake(chip->core_irq);
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(max8925_pm_ops, max8925_suspend, max8925_resume);
+
 static struct i2c_driver max8925_driver = {
 	.driver	= {
 		.name	= "max8925",
 		.owner	= THIS_MODULE,
+		.pm     = &max8925_pm_ops,
 	},
 	.probe		= max8925_probe,
 	.remove		= __devexit_p(max8925_remove),

drivers/mfd/max8997.c

@@ -43,7 +43,8 @@ static struct mfd_cell max8997_devs[] = {
 	{ .name = "max8997-battery", },
 	{ .name = "max8997-haptic", },
 	{ .name = "max8997-muic", },
-	{ .name = "max8997-flash", },
+	{ .name = "max8997-led", .id = 1 },
+	{ .name = "max8997-led", .id = 2 },
 };
 
 int max8997_read_reg(struct i2c_client *i2c, u8 reg, u8 *dest)

drivers/mfd/max8998.c

@@ -176,6 +176,8 @@ static int max8998_i2c_probe(struct i2c_client *i2c,
 	if (ret < 0)
 		goto err;
 
+	device_init_wakeup(max8998->dev, max8998->wakeup);
+
 	return ret;
 
 err:
@@ -210,7 +212,7 @@ static int max8998_suspend(struct device *dev)
 	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
 	struct max8998_dev *max8998 = i2c_get_clientdata(i2c);
 
-	if (max8998->wakeup)
+	if (device_may_wakeup(dev))
 		irq_set_irq_wake(max8998->irq, 1);
 	return 0;
 }
@@ -220,7 +222,7 @@ static int max8998_resume(struct device *dev)
 	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
 	struct max8998_dev *max8998 = i2c_get_clientdata(i2c);
 
-	if (max8998->wakeup)
+	if (device_may_wakeup(dev))
 		irq_set_irq_wake(max8998->irq, 0);
 	/*
 	 * In LP3974, if IRQ registers are not "read & clear"

drivers/mfd/mc13xxx-core.c

@@ -18,11 +18,15 @@
 #include <linux/spi/spi.h>
 #include <linux/mfd/core.h>
 #include <linux/mfd/mc13xxx.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
 
 struct mc13xxx {
 	struct spi_device *spidev;
 	struct mutex lock;
 	int irq;
+	int flags;
 
 	irq_handler_t irqhandler[MC13XXX_NUM_IRQ];
 	void *irqdata[MC13XXX_NUM_IRQ];
@@ -550,10 +554,7 @@ static const char *mc13xxx_get_chipname(struct mc13xxx *mc13xxx)
 
 int mc13xxx_get_flags(struct mc13xxx *mc13xxx)
 {
-	struct mc13xxx_platform_data *pdata =
-		dev_get_platdata(&mc13xxx->spidev->dev);
-
-	return pdata->flags;
+	return mc13xxx->flags;
 }
 EXPORT_SYMBOL(mc13xxx_get_flags);
 
@@ -615,13 +616,13 @@ int mc13xxx_adc_do_conversion(struct mc13xxx *mc13xxx, unsigned int mode,
 		break;
 
 	case MC13XXX_ADC_MODE_SINGLE_CHAN:
-		adc0 |= old_adc0 & MC13XXX_ADC0_TSMOD_MASK;
+		adc0 |= old_adc0 & MC13XXX_ADC0_CONFIG_MASK;
 		adc1 |= (channel & 0x7) << MC13XXX_ADC1_CHAN0_SHIFT;
 		adc1 |= MC13XXX_ADC1_RAND;
 		break;
 
 	case MC13XXX_ADC_MODE_MULT_CHAN:
-		adc0 |= old_adc0 & MC13XXX_ADC0_TSMOD_MASK;
+		adc0 |= old_adc0 & MC13XXX_ADC0_CONFIG_MASK;
 		adc1 |= 4 << MC13XXX_ADC1_CHAN1_SHIFT;
 		break;
 
@@ -696,17 +697,67 @@ static int mc13xxx_add_subdevice(struct mc13xxx *mc13xxx, const char *format)
 	return mc13xxx_add_subdevice_pdata(mc13xxx, format, NULL, 0);
 }
 
+#ifdef CONFIG_OF
+static int mc13xxx_probe_flags_dt(struct mc13xxx *mc13xxx)
+{
+	struct device_node *np = mc13xxx->spidev->dev.of_node;
+
+	if (!np)
+		return -ENODEV;
+
+	if (of_get_property(np, "fsl,mc13xxx-uses-adc", NULL))
+		mc13xxx->flags |= MC13XXX_USE_ADC;
+
+	if (of_get_property(np, "fsl,mc13xxx-uses-codec", NULL))
+		mc13xxx->flags |= MC13XXX_USE_CODEC;
+
+	if (of_get_property(np, "fsl,mc13xxx-uses-rtc", NULL))
+		mc13xxx->flags |= MC13XXX_USE_RTC;
+
+	if (of_get_property(np, "fsl,mc13xxx-uses-touch", NULL))
+		mc13xxx->flags |= MC13XXX_USE_TOUCHSCREEN;
+
+	return 0;
+}
+#else
+static inline int mc13xxx_probe_flags_dt(struct mc13xxx *mc13xxx)
+{
+	return -ENODEV;
+}
+#endif
+
+static const struct spi_device_id mc13xxx_device_id[] = {
+	{
+		.name = "mc13783",
+		.driver_data = MC13XXX_ID_MC13783,
+	}, {
+		.name = "mc13892",
+		.driver_data = MC13XXX_ID_MC13892,
+	}, {
+		/* sentinel */
+	}
+};
+MODULE_DEVICE_TABLE(spi, mc13xxx_device_id);
+
+static const struct of_device_id mc13xxx_dt_ids[] = {
+	{ .compatible = "fsl,mc13783", .data = (void *) MC13XXX_ID_MC13783, },
+	{ .compatible = "fsl,mc13892", .data = (void *) MC13XXX_ID_MC13892, },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, mc13xxx_dt_ids);
+
 static int mc13xxx_probe(struct spi_device *spi)
 {
+	const struct of_device_id *of_id;
+	struct spi_driver *sdrv = to_spi_driver(spi->dev.driver);
 	struct mc13xxx *mc13xxx;
 	struct mc13xxx_platform_data *pdata = dev_get_platdata(&spi->dev);
 	enum mc13xxx_id id;
 	int ret;
 
-	if (!pdata) {
-		dev_err(&spi->dev, "invalid platform data\n");
-		return -EINVAL;
-	}
+	of_id = of_match_device(mc13xxx_dt_ids, &spi->dev);
+	if (of_id)
+		sdrv->id_table = &mc13xxx_device_id[(enum mc13xxx_id) of_id->data];
 
 	mc13xxx = kzalloc(sizeof(*mc13xxx), GFP_KERNEL);
 	if (!mc13xxx)
@@ -749,28 +800,33 @@ static int mc13xxx_probe(struct spi_device *spi)
 
 	mc13xxx_unlock(mc13xxx);
 
-	if (pdata->flags & MC13XXX_USE_ADC)
+	if (mc13xxx_probe_flags_dt(mc13xxx) < 0 && pdata)
+		mc13xxx->flags = pdata->flags;
+
+	if (mc13xxx->flags & MC13XXX_USE_ADC)
 		mc13xxx_add_subdevice(mc13xxx, "%s-adc");
 
-	if (pdata->flags & MC13XXX_USE_CODEC)
+	if (mc13xxx->flags & MC13XXX_USE_CODEC)
 		mc13xxx_add_subdevice(mc13xxx, "%s-codec");
 
-	mc13xxx_add_subdevice_pdata(mc13xxx, "%s-regulator",
-		&pdata->regulators, sizeof(pdata->regulators));
-
-	if (pdata->flags & MC13XXX_USE_RTC)
+	if (mc13xxx->flags & MC13XXX_USE_RTC)
 		mc13xxx_add_subdevice(mc13xxx, "%s-rtc");
 
-	if (pdata->flags & MC13XXX_USE_TOUCHSCREEN)
+	if (mc13xxx->flags & MC13XXX_USE_TOUCHSCREEN)
 		mc13xxx_add_subdevice(mc13xxx, "%s-ts");
 
-	if (pdata->leds)
+	if (pdata) {
+		mc13xxx_add_subdevice_pdata(mc13xxx, "%s-regulator",
+			&pdata->regulators, sizeof(pdata->regulators));
 		mc13xxx_add_subdevice_pdata(mc13xxx, "%s-led",
 				pdata->leds, sizeof(*pdata->leds));
-
-	if (pdata->buttons)
 		mc13xxx_add_subdevice_pdata(mc13xxx, "%s-pwrbutton",
 				pdata->buttons, sizeof(*pdata->buttons));
+	} else {
+		mc13xxx_add_subdevice(mc13xxx, "%s-regulator");
+		mc13xxx_add_subdevice(mc13xxx, "%s-led");
+		mc13xxx_add_subdevice(mc13xxx, "%s-pwrbutton");
+	}
 
 	return 0;
 }
@@ -788,25 +844,12 @@ static int __devexit mc13xxx_remove(struct spi_device *spi)
 	return 0;
 }
 
-static const struct spi_device_id mc13xxx_device_id[] = {
-	{
-		.name = "mc13783",
-		.driver_data = MC13XXX_ID_MC13783,
-	}, {
-		.name = "mc13892",
-		.driver_data = MC13XXX_ID_MC13892,
-	}, {
-		/* sentinel */
-	}
-};
-MODULE_DEVICE_TABLE(spi, mc13xxx_device_id);
-
 static struct spi_driver mc13xxx_driver = {
 	.id_table = mc13xxx_device_id,
 	.driver = {
 		.name = "mc13xxx",
-		.bus = &spi_bus_type,
 		.owner = THIS_MODULE,
+		.of_match_table = mc13xxx_dt_ids,
 	},
 	.probe = mc13xxx_probe,
 	.remove = __devexit_p(mc13xxx_remove),

drivers/mfd/mcp-core.c

@@ -26,9 +26,35 @@
 #define to_mcp(d)		container_of(d, struct mcp, attached_device)
 #define to_mcp_driver(d)	container_of(d, struct mcp_driver, drv)
 
+static const struct mcp_device_id *mcp_match_id(const struct mcp_device_id *id,
+						const char *codec)
+{
+	while (id->name[0]) {
+		if (strcmp(codec, id->name) == 0)
+			return id;
+		id++;
+	}
+	return NULL;
+}
+
+const struct mcp_device_id *mcp_get_device_id(const struct mcp *mcp)
+{
+	const struct mcp_driver *driver =
+		to_mcp_driver(mcp->attached_device.driver);
+
+	return mcp_match_id(driver->id_table, mcp->codec);
+}
+EXPORT_SYMBOL(mcp_get_device_id);
+
 static int mcp_bus_match(struct device *dev, struct device_driver *drv)
 {
-	return 1;
+	const struct mcp *mcp = to_mcp(dev);
+	const struct mcp_driver *driver = to_mcp_driver(drv);
+
+	if (driver->id_table)
+		return !!mcp_match_id(driver->id_table, mcp->codec);
+
+	return 0;
 }
 
 static int mcp_bus_probe(struct device *dev)
@@ -74,9 +100,18 @@ static int mcp_bus_resume(struct device *dev)
 	return ret;
 }
 
+static int mcp_bus_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+	struct mcp *mcp = to_mcp(dev);
+
+	add_uevent_var(env, "MODALIAS=%s%s", MCP_MODULE_PREFIX, mcp->codec);
+	return 0;
+}
+
 static struct bus_type mcp_bus_type = {
 	.name		= "mcp",
 	.match		= mcp_bus_match,
+	.uevent		= mcp_bus_uevent,
 	.probe		= mcp_bus_probe,
 	.remove		= mcp_bus_remove,
 	.suspend	= mcp_bus_suspend,
@@ -212,9 +247,14 @@ struct mcp *mcp_host_alloc(struct device *parent, size_t size)
 }
 EXPORT_SYMBOL(mcp_host_alloc);
 
-int mcp_host_register(struct mcp *mcp)
+int mcp_host_register(struct mcp *mcp, void *pdata)
 {
+	if (!mcp->codec)
+		return -EINVAL;
+
+	mcp->attached_device.platform_data = pdata;
 	dev_set_name(&mcp->attached_device, "mcp0");
+	request_module("%s%s", MCP_MODULE_PREFIX, mcp->codec);
 	return device_register(&mcp->attached_device);
 }
 EXPORT_SYMBOL(mcp_host_register);

drivers/mfd/mcp-sa11x0.c

@@ -19,6 +19,7 @@
 #include <linux/spinlock.h>
 #include <linux/platform_device.h>
 #include <linux/mfd/mcp.h>
+#include <linux/io.h>
 
 #include <mach/dma.h>
 #include <mach/hardware.h>
@@ -26,12 +27,19 @@
 #include <asm/system.h>
 #include <mach/mcp.h>
 
-#include <mach/assabet.h>
-
+/* Register offsets */
+#define MCCR0	0x00
+#define MCDR0	0x08
+#define MCDR1	0x0C
+#define MCDR2	0x10
+#define MCSR	0x18
+#define MCCR1	0x00
 
 struct mcp_sa11x0 {
-	u32	mccr0;
-	u32	mccr1;
+	u32		mccr0;
+	u32		mccr1;
+	unsigned char	*mccr0_base;
+	unsigned char	*mccr1_base;
 };
 
 #define priv(mcp)	((struct mcp_sa11x0 *)mcp_priv(mcp))
@@ -39,25 +47,25 @@ struct mcp_sa11x0 {
 static void
 mcp_sa11x0_set_telecom_divisor(struct mcp *mcp, unsigned int divisor)
 {
-	unsigned int mccr0;
+	struct mcp_sa11x0 *priv = priv(mcp);
 
 	divisor /= 32;
 
-	mccr0 = Ser4MCCR0 & ~0x00007f00;
-	mccr0 |= divisor << 8;
-	Ser4MCCR0 = mccr0;
+	priv->mccr0 &= ~0x00007f00;
+	priv->mccr0 |= divisor << 8;
+	__raw_writel(priv->mccr0, priv->mccr0_base + MCCR0);
 }
 
 static void
 mcp_sa11x0_set_audio_divisor(struct mcp *mcp, unsigned int divisor)
 {
-	unsigned int mccr0;
+	struct mcp_sa11x0 *priv = priv(mcp);
 
 	divisor /= 32;
 
-	mccr0 = Ser4MCCR0 & ~0x0000007f;
-	mccr0 |= divisor;
-	Ser4MCCR0 = mccr0;
+	priv->mccr0 &= ~0x0000007f;
+	priv->mccr0 |= divisor;
+	__raw_writel(priv->mccr0, priv->mccr0_base + MCCR0);
 }
 
 /*
@@ -71,12 +79,16 @@ mcp_sa11x0_write(struct mcp *mcp, unsigned int reg, unsigned int val)
 {
 	int ret = -ETIME;
 	int i;
+	u32 mcpreg;
+	struct mcp_sa11x0 *priv = priv(mcp);
 
-	Ser4MCDR2 = reg << 17 | MCDR2_Wr | (val & 0xffff);
+	mcpreg = reg << 17 | MCDR2_Wr | (val & 0xffff);
+	__raw_writel(mcpreg, priv->mccr0_base + MCDR2);
 
 	for (i = 0; i < 2; i++) {
 		udelay(mcp->rw_timeout);
-		if (Ser4MCSR & MCSR_CWC) {
+		mcpreg = __raw_readl(priv->mccr0_base + MCSR);
+		if (mcpreg & MCSR_CWC) {
 			ret = 0;
 			break;
 		}
@@ -97,13 +109,18 @@ mcp_sa11x0_read(struct mcp *mcp, unsigned int reg)
 {
 	int ret = -ETIME;
 	int i;
+	u32 mcpreg;
+	struct mcp_sa11x0 *priv = priv(mcp);
 
-	Ser4MCDR2 = reg << 17 | MCDR2_Rd;
+	mcpreg = reg << 17 | MCDR2_Rd;
+	__raw_writel(mcpreg, priv->mccr0_base + MCDR2);
 
 	for (i = 0; i < 2; i++) {
 		udelay(mcp->rw_timeout);
-		if (Ser4MCSR & MCSR_CRC) {
-			ret = Ser4MCDR2 & 0xffff;
+		mcpreg = __raw_readl(priv->mccr0_base + MCSR);
+		if (mcpreg & MCSR_CRC) {
+			ret = __raw_readl(priv->mccr0_base + MCDR2)
+				& 0xffff;
 			break;
 		}
 	}
@@ -116,13 +133,19 @@ mcp_sa11x0_read(struct mcp *mcp, unsigned int reg)
 
 static void mcp_sa11x0_enable(struct mcp *mcp)
 {
-	Ser4MCSR = -1;
-	Ser4MCCR0 |= MCCR0_MCE;
+	struct mcp_sa11x0 *priv = priv(mcp);
+
+	__raw_writel(-1, priv->mccr0_base + MCSR);
+	priv->mccr0 |= MCCR0_MCE;
+	__raw_writel(priv->mccr0, priv->mccr0_base + MCCR0);
 }
 
 static void mcp_sa11x0_disable(struct mcp *mcp)
 {
-	Ser4MCCR0 &= ~MCCR0_MCE;
+	struct mcp_sa11x0 *priv = priv(mcp);
+
+	priv->mccr0 &= ~MCCR0_MCE;
+	__raw_writel(priv->mccr0, priv->mccr0_base + MCCR0);
 }
 
 /*
@@ -142,50 +165,69 @@ static int mcp_sa11x0_probe(struct platform_device *pdev)
 	struct mcp_plat_data *data = pdev->dev.platform_data;
 	struct mcp *mcp;
 	int ret;
+	struct mcp_sa11x0 *priv;
+	struct resource *res_mem0, *res_mem1;
+	u32 size0, size1;
 
 	if (!data)
 		return -ENODEV;
 
-	if (!request_mem_region(0x80060000, 0x60, "sa11x0-mcp"))
+	if (!data->codec)
+		return -ENODEV;
+
+	res_mem0 = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res_mem0)
+		return -ENODEV;
+	size0 = res_mem0->end - res_mem0->start + 1;
+
+	res_mem1 = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+	if (!res_mem1)
+		return -ENODEV;
+	size1 = res_mem1->end - res_mem1->start + 1;
+
+	if (!request_mem_region(res_mem0->start, size0, "sa11x0-mcp"))
 		return -EBUSY;
 
+	if (!request_mem_region(res_mem1->start, size1, "sa11x0-mcp")) {
+		ret = -EBUSY;
+		goto release;
+	}
+
 	mcp = mcp_host_alloc(&pdev->dev, sizeof(struct mcp_sa11x0));
 	if (!mcp) {
 		ret = -ENOMEM;
-		goto release;
+		goto release2;
 	}
 
+	priv = priv(mcp);
+
 	mcp->owner		= THIS_MODULE;
 	mcp->ops		= &mcp_sa11x0;
 	mcp->sclk_rate		= data->sclk_rate;
-	mcp->dma_audio_rd	= DMA_Ser4MCP0Rd;
-	mcp->dma_audio_wr	= DMA_Ser4MCP0Wr;
-	mcp->dma_telco_rd	= DMA_Ser4MCP1Rd;
-	mcp->dma_telco_wr	= DMA_Ser4MCP1Wr;
-	mcp->gpio_base		= data->gpio_base;
+	mcp->dma_audio_rd	= DDAR_DevAdd(res_mem0->start + MCDR0)
+				+ DDAR_DevRd + DDAR_Brst4 + DDAR_8BitDev;
+	mcp->dma_audio_wr	= DDAR_DevAdd(res_mem0->start + MCDR0)
+				+ DDAR_DevWr + DDAR_Brst4 + DDAR_8BitDev;
+	mcp->dma_telco_rd	= DDAR_DevAdd(res_mem0->start + MCDR1)
+				+ DDAR_DevRd + DDAR_Brst4 + DDAR_8BitDev;
+	mcp->dma_telco_wr	= DDAR_DevAdd(res_mem0->start + MCDR1)
+				+ DDAR_DevWr + DDAR_Brst4 + DDAR_8BitDev;
+	mcp->codec		= data->codec;
 
 	platform_set_drvdata(pdev, mcp);
 
-	if (machine_is_assabet()) {
-		ASSABET_BCR_set(ASSABET_BCR_CODEC_RST);
-	}
-
-	/*
-	 * Setup the PPC unit correctly.
-	 */
-	PPDR &= ~PPC_RXD4;
-	PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
-	PSDR |= PPC_RXD4;
-	PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
-	PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
-
 	/*
 	 * Initialise device.  Note that we initially
 	 * set the sampling rate to minimum.
 	 */
-	Ser4MCSR = -1;
-	Ser4MCCR1 = data->mccr1;
-	Ser4MCCR0 = data->mccr0 | 0x7f7f;
+	priv->mccr0_base = ioremap(res_mem0->start, size0);
+	priv->mccr1_base = ioremap(res_mem1->start, size1);
+
+	__raw_writel(-1, priv->mccr0_base + MCSR);
+	priv->mccr1 = data->mccr1;
+	priv->mccr0 = data->mccr0 | 0x7f7f;
+	__raw_writel(priv->mccr0, priv->mccr0_base + MCCR0);
+	__raw_writel(priv->mccr1, priv->mccr1_base + MCCR1);
 
 	/*
 	 * Calculate the read/write timeout (us) from the bit clock
@@ -195,36 +237,53 @@ static int mcp_sa11x0_probe(struct platform_device *pdev)
 	mcp->rw_timeout = (64 * 3 * 1000000 + mcp->sclk_rate - 1) /
 			  mcp->sclk_rate;
 
-	ret = mcp_host_register(mcp);
+	ret = mcp_host_register(mcp, data->codec_pdata);
 	if (ret == 0)
 		goto out;
 
+ release2:
+	release_mem_region(res_mem1->start, size1);
  release:
-	release_mem_region(0x80060000, 0x60);
+	release_mem_region(res_mem0->start, size0);
 	platform_set_drvdata(pdev, NULL);
 
  out:
 	return ret;
 }
 
-static int mcp_sa11x0_remove(struct platform_device *dev)
+static int mcp_sa11x0_remove(struct platform_device *pdev)
 {
-	struct mcp *mcp = platform_get_drvdata(dev);
+	struct mcp *mcp = platform_get_drvdata(pdev);
+	struct mcp_sa11x0 *priv = priv(mcp);
+	struct resource *res_mem;
+	u32 size;
 
-	platform_set_drvdata(dev, NULL);
+	platform_set_drvdata(pdev, NULL);
 	mcp_host_unregister(mcp);
-	release_mem_region(0x80060000, 0x60);
 
+	res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (res_mem) {
+		size = res_mem->end - res_mem->start + 1;
+		release_mem_region(res_mem->start, size);
+	}
+	res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+	if (res_mem) {
+		size = res_mem->end - res_mem->start + 1;
+		release_mem_region(res_mem->start, size);
+	}
+	iounmap(priv->mccr0_base);
+	iounmap(priv->mccr1_base);
 	return 0;
 }
 
 static int mcp_sa11x0_suspend(struct platform_device *dev, pm_message_t state)
 {
 	struct mcp *mcp = platform_get_drvdata(dev);
+	struct mcp_sa11x0 *priv = priv(mcp);
+	u32 mccr0;
 
-	priv(mcp)->mccr0 = Ser4MCCR0;
-	priv(mcp)->mccr1 = Ser4MCCR1;
-	Ser4MCCR0 &= ~MCCR0_MCE;
+	mccr0 = priv->mccr0 & ~MCCR0_MCE;
+	__raw_writel(mccr0, priv->mccr0_base + MCCR0);
 
 	return 0;
 }
@@ -232,9 +291,10 @@ static int mcp_sa11x0_suspend(struct platform_device *dev, pm_message_t state)
 static int mcp_sa11x0_resume(struct platform_device *dev)
 {
 	struct mcp *mcp = platform_get_drvdata(dev);
+	struct mcp_sa11x0 *priv = priv(mcp);
 
-	Ser4MCCR1 = priv(mcp)->mccr1;
-	Ser4MCCR0 = priv(mcp)->mccr0;
+	__raw_writel(priv->mccr0, priv->mccr0_base + MCCR0);
+	__raw_writel(priv->mccr1, priv->mccr1_base + MCCR1);
 
 	return 0;
 }
@@ -251,24 +311,14 @@ static struct platform_driver mcp_sa11x0_driver = {
 	.resume		= mcp_sa11x0_resume,
 	.driver		= {
 		.name	= "sa11x0-mcp",
+		.owner  = THIS_MODULE,
 	},
 };
 
 /*
  * This needs re-working
  */
-static int __init mcp_sa11x0_init(void)
-{
-	return platform_driver_register(&mcp_sa11x0_driver);
-}
-
-static void __exit mcp_sa11x0_exit(void)
-{
-	platform_driver_unregister(&mcp_sa11x0_driver);
-}
-
-module_init(mcp_sa11x0_init);
-module_exit(mcp_sa11x0_exit);
+module_platform_driver(mcp_sa11x0_driver);
 
 MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>");
 MODULE_DESCRIPTION("SA11x0 multimedia communications port driver");

drivers/mfd/omap-usb-host.c

@@ -503,19 +503,13 @@ static void omap_usbhs_init(struct device *dev)
 	spin_lock_irqsave(&omap->lock, flags);
 
 	if (pdata->ehci_data->phy_reset) {
-		if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0])) {
-			gpio_request(pdata->ehci_data->reset_gpio_port[0],
-						"USB1 PHY reset");
-			gpio_direction_output
-				(pdata->ehci_data->reset_gpio_port[0], 0);
-		}
+		if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0]))
+			gpio_request_one(pdata->ehci_data->reset_gpio_port[0],
+					 GPIOF_OUT_INIT_LOW, "USB1 PHY reset");
 
-		if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1])) {
-			gpio_request(pdata->ehci_data->reset_gpio_port[1],
-						"USB2 PHY reset");
-			gpio_direction_output
-				(pdata->ehci_data->reset_gpio_port[1], 0);
-		}
+		if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1]))
+			gpio_request_one(pdata->ehci_data->reset_gpio_port[1],
+					 GPIOF_OUT_INIT_LOW, "USB2 PHY reset");
 
 		/* Hold the PHY in RESET for enough time till DIR is high */
 		udelay(10);

drivers/mfd/pcf50633-adc.c

@@ -249,17 +249,7 @@ static struct platform_driver pcf50633_adc_driver = {
 	.remove = __devexit_p(pcf50633_adc_remove),
 };
 
-static int __init pcf50633_adc_init(void)
-{
-	return platform_driver_register(&pcf50633_adc_driver);
-}
-module_init(pcf50633_adc_init);
-
-static void __exit pcf50633_adc_exit(void)
-{
-	platform_driver_unregister(&pcf50633_adc_driver);
-}
-module_exit(pcf50633_adc_exit);
+module_platform_driver(pcf50633_adc_driver);
 
 MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>");
 MODULE_DESCRIPTION("PCF50633 adc driver");

drivers/mfd/s5m-core.c

+/*
+ * s5m87xx.c
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd
+ *              http://www.samsung.com
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/pm_runtime.h>
+#include <linux/mutex.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/s5m87xx/s5m-core.h>
+#include <linux/mfd/s5m87xx/s5m-pmic.h>
+#include <linux/mfd/s5m87xx/s5m-rtc.h>
+#include <linux/regmap.h>
+
+static struct mfd_cell s5m87xx_devs[] = {
+	{
+		.name = "s5m8767-pmic",
+	}, {
+		.name = "s5m-rtc",
+	},
+};
+
+int s5m_reg_read(struct s5m87xx_dev *s5m87xx, u8 reg, void *dest)
+{
+	return regmap_read(s5m87xx->regmap, reg, dest);
+}
+EXPORT_SYMBOL_GPL(s5m_reg_read);
+
+int s5m_bulk_read(struct s5m87xx_dev *s5m87xx, u8 reg, int count, u8 *buf)
+{
+	return regmap_bulk_read(s5m87xx->regmap, reg, buf, count);;
+}
+EXPORT_SYMBOL_GPL(s5m_bulk_read);
+
+int s5m_reg_write(struct s5m87xx_dev *s5m87xx, u8 reg, u8 value)
+{
+	return regmap_write(s5m87xx->regmap, reg, value);
+}
+EXPORT_SYMBOL_GPL(s5m_reg_write);
+
+int s5m_bulk_write(struct s5m87xx_dev *s5m87xx, u8 reg, int count, u8 *buf)
+{
+	return regmap_raw_write(s5m87xx->regmap, reg, buf, count * sizeof(u16));
+}
+EXPORT_SYMBOL_GPL(s5m_bulk_write);
+
+int s5m_reg_update(struct s5m87xx_dev *s5m87xx, u8 reg, u8 val, u8 mask)
+{
+	return regmap_update_bits(s5m87xx->regmap, reg, mask, val);
+}
+EXPORT_SYMBOL_GPL(s5m_reg_update);
+
+static struct regmap_config s5m_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+};
+
+static int s5m87xx_i2c_probe(struct i2c_client *i2c,
+			    const struct i2c_device_id *id)
+{
+	struct s5m_platform_data *pdata = i2c->dev.platform_data;
+	struct s5m87xx_dev *s5m87xx;
+	int ret = 0;
+	int error;
+
+	s5m87xx = kzalloc(sizeof(struct s5m87xx_dev), GFP_KERNEL);
+	if (s5m87xx == NULL)
+		return -ENOMEM;
+
+	i2c_set_clientdata(i2c, s5m87xx);
+	s5m87xx->dev = &i2c->dev;
+	s5m87xx->i2c = i2c;
+	s5m87xx->irq = i2c->irq;
+	s5m87xx->type = id->driver_data;
+
+	if (pdata) {
+		s5m87xx->device_type = pdata->device_type;
+		s5m87xx->ono = pdata->ono;
+		s5m87xx->irq_base = pdata->irq_base;
+		s5m87xx->wakeup = pdata->wakeup;
+	}
+
+	s5m87xx->regmap = regmap_init_i2c(i2c, &s5m_regmap_config);
+	if (IS_ERR(s5m87xx->regmap)) {
+		error = PTR_ERR(s5m87xx->regmap);
+		dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
+			error);
+		goto err;
+	}
+
+	s5m87xx->rtc = i2c_new_dummy(i2c->adapter, RTC_I2C_ADDR);
+	i2c_set_clientdata(s5m87xx->rtc, s5m87xx);
+
+	if (pdata->cfg_pmic_irq)
+		pdata->cfg_pmic_irq();
+
+	s5m_irq_init(s5m87xx);
+
+	pm_runtime_set_active(s5m87xx->dev);
+
+	ret = mfd_add_devices(s5m87xx->dev, -1,
+				s5m87xx_devs, ARRAY_SIZE(s5m87xx_devs),
+				NULL, 0);
+
+	if (ret < 0)
+		goto err;
+
+	return ret;
+
+err:
+	mfd_remove_devices(s5m87xx->dev);
+	s5m_irq_exit(s5m87xx);
+	i2c_unregister_device(s5m87xx->rtc);
+	regmap_exit(s5m87xx->regmap);
+	kfree(s5m87xx);
+	return ret;
+}
+
+static int s5m87xx_i2c_remove(struct i2c_client *i2c)
+{
+	struct s5m87xx_dev *s5m87xx = i2c_get_clientdata(i2c);
+
+	mfd_remove_devices(s5m87xx->dev);
+	s5m_irq_exit(s5m87xx);
+	i2c_unregister_device(s5m87xx->rtc);
+	regmap_exit(s5m87xx->regmap);
+	kfree(s5m87xx);
+	return 0;
+}
+
+static const struct i2c_device_id s5m87xx_i2c_id[] = {
+	{ "s5m87xx", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, s5m87xx_i2c_id);
+
+static struct i2c_driver s5m87xx_i2c_driver = {
+	.driver = {
+		   .name = "s5m87xx",
+		   .owner = THIS_MODULE,
+	},
+	.probe = s5m87xx_i2c_probe,
+	.remove = s5m87xx_i2c_remove,
+	.id_table = s5m87xx_i2c_id,
+};
+
+static int __init s5m87xx_i2c_init(void)
+{
+	return i2c_add_driver(&s5m87xx_i2c_driver);
+}
+
+subsys_initcall(s5m87xx_i2c_init);
+
+static void __exit s5m87xx_i2c_exit(void)
+{
+	i2c_del_driver(&s5m87xx_i2c_driver);
+}
+module_exit(s5m87xx_i2c_exit);
+
+MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");
+MODULE_DESCRIPTION("Core support for the S5M MFD");
+MODULE_LICENSE("GPL");

drivers/mfd/s5m-irq.c

+/*
+ * s5m-irq.c
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd
+ *              http://www.samsung.com
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ */
+
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/mfd/s5m87xx/s5m-core.h>
+
+struct s5m_irq_data {
+	int reg;
+	int mask;
+};
+
+static struct s5m_irq_data s5m8767_irqs[] = {
+	[S5M8767_IRQ_PWRR] = {
+		.reg = 1,
+		.mask = S5M8767_IRQ_PWRR_MASK,
+	},
+	[S5M8767_IRQ_PWRF] = {
+		.reg = 1,
+		.mask = S5M8767_IRQ_PWRF_MASK,
+	},
+	[S5M8767_IRQ_PWR1S] = {
+		.reg = 1,
+		.mask = S5M8767_IRQ_PWR1S_MASK,
+	},
+	[S5M8767_IRQ_JIGR] = {
+		.reg = 1,
+		.mask = S5M8767_IRQ_JIGR_MASK,
+	},
+	[S5M8767_IRQ_JIGF] = {
+		.reg = 1,
+		.mask = S5M8767_IRQ_JIGF_MASK,
+	},
+	[S5M8767_IRQ_LOWBAT2] = {
+		.reg = 1,
+		.mask = S5M8767_IRQ_LOWBAT2_MASK,
+	},
+	[S5M8767_IRQ_LOWBAT1] = {
+		.reg = 1,
+		.mask = S5M8767_IRQ_LOWBAT1_MASK,
+	},
+	[S5M8767_IRQ_MRB] = {
+		.reg = 2,
+		.mask = S5M8767_IRQ_MRB_MASK,
+	},
+	[S5M8767_IRQ_DVSOK2] = {
+		.reg = 2,
+		.mask = S5M8767_IRQ_DVSOK2_MASK,
+	},
+	[S5M8767_IRQ_DVSOK3] = {
+		.reg = 2,
+		.mask = S5M8767_IRQ_DVSOK3_MASK,
+	},
+	[S5M8767_IRQ_DVSOK4] = {
+		.reg = 2,
+		.mask = S5M8767_IRQ_DVSOK4_MASK,
+	},
+	[S5M8767_IRQ_RTC60S] = {
+		.reg = 3,
+		.mask = S5M8767_IRQ_RTC60S_MASK,
+	},
+	[S5M8767_IRQ_RTCA1] = {
+		.reg = 3,
+		.mask = S5M8767_IRQ_RTCA1_MASK,
+	},
+	[S5M8767_IRQ_RTCA2] = {
+		.reg = 3,
+		.mask = S5M8767_IRQ_RTCA2_MASK,
+	},
+	[S5M8767_IRQ_SMPL] = {
+		.reg = 3,
+		.mask = S5M8767_IRQ_SMPL_MASK,
+	},
+	[S5M8767_IRQ_RTC1S] = {
+		.reg = 3,
+		.mask = S5M8767_IRQ_RTC1S_MASK,
+	},
+	[S5M8767_IRQ_WTSR] = {
+		.reg = 3,
+		.mask = S5M8767_IRQ_WTSR_MASK,
+	},
+};
+
+static struct s5m_irq_data s5m8763_irqs[] = {
+	[S5M8763_IRQ_DCINF] = {
+		.reg = 1,
+		.mask = S5M8763_IRQ_DCINF_MASK,
+	},
+	[S5M8763_IRQ_DCINR] = {
+		.reg = 1,
+		.mask = S5M8763_IRQ_DCINR_MASK,
+	},
+	[S5M8763_IRQ_JIGF] = {
+		.reg = 1,
+		.mask = S5M8763_IRQ_JIGF_MASK,
+	},
+	[S5M8763_IRQ_JIGR] = {
+		.reg = 1,
+		.mask = S5M8763_IRQ_JIGR_MASK,
+	},
+	[S5M8763_IRQ_PWRONF] = {
+		.reg = 1,
+		.mask = S5M8763_IRQ_PWRONF_MASK,
+	},
+	[S5M8763_IRQ_PWRONR] = {
+		.reg = 1,
+		.mask = S5M8763_IRQ_PWRONR_MASK,
+	},
+	[S5M8763_IRQ_WTSREVNT] = {
+		.reg = 2,
+		.mask = S5M8763_IRQ_WTSREVNT_MASK,
+	},
+	[S5M8763_IRQ_SMPLEVNT] = {
+		.reg = 2,
+		.mask = S5M8763_IRQ_SMPLEVNT_MASK,
+	},
+	[S5M8763_IRQ_ALARM1] = {
+		.reg = 2,
+		.mask = S5M8763_IRQ_ALARM1_MASK,
+	},
+	[S5M8763_IRQ_ALARM0] = {
+		.reg = 2,
+		.mask = S5M8763_IRQ_ALARM0_MASK,
+	},
+	[S5M8763_IRQ_ONKEY1S] = {
+		.reg = 3,
+		.mask = S5M8763_IRQ_ONKEY1S_MASK,
+	},
+	[S5M8763_IRQ_TOPOFFR] = {
+		.reg = 3,
+		.mask = S5M8763_IRQ_TOPOFFR_MASK,
+	},
+	[S5M8763_IRQ_DCINOVPR] = {
+		.reg = 3,
+		.mask = S5M8763_IRQ_DCINOVPR_MASK,
+	},
+	[S5M8763_IRQ_CHGRSTF] = {
+		.reg = 3,
+		.mask = S5M8763_IRQ_CHGRSTF_MASK,
+	},
+	[S5M8763_IRQ_DONER] = {
+		.reg = 3,
+		.mask = S5M8763_IRQ_DONER_MASK,
+	},
+	[S5M8763_IRQ_CHGFAULT] = {
+		.reg = 3,
+		.mask = S5M8763_IRQ_CHGFAULT_MASK,
+	},
+	[S5M8763_IRQ_LOBAT1] = {
+		.reg = 4,
+		.mask = S5M8763_IRQ_LOBAT1_MASK,
+	},
+	[S5M8763_IRQ_LOBAT2] = {
+		.reg = 4,
+		.mask = S5M8763_IRQ_LOBAT2_MASK,
+	},
+};
+
+static inline struct s5m_irq_data *
+irq_to_s5m8767_irq(struct s5m87xx_dev *s5m87xx, int irq)
+{
+	return &s5m8767_irqs[irq - s5m87xx->irq_base];
+}
+
+static void s5m8767_irq_lock(struct irq_data *data)
+{
+	struct s5m87xx_dev *s5m87xx = irq_data_get_irq_chip_data(data);
+
+	mutex_lock(&s5m87xx->irqlock);
+}
+
+static void s5m8767_irq_sync_unlock(struct irq_data *data)
+{
+	struct s5m87xx_dev *s5m87xx = irq_data_get_irq_chip_data(data);
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(s5m87xx->irq_masks_cur); i++) {
+		if (s5m87xx->irq_masks_cur[i] != s5m87xx->irq_masks_cache[i]) {
+			s5m87xx->irq_masks_cache[i] = s5m87xx->irq_masks_cur[i];
+			s5m_reg_write(s5m87xx, S5M8767_REG_INT1M + i,
+					s5m87xx->irq_masks_cur[i]);
+		}
+	}
+
+	mutex_unlock(&s5m87xx->irqlock);
+}
+
+static void s5m8767_irq_unmask(struct irq_data *data)
+{
+	struct s5m87xx_dev *s5m87xx = irq_data_get_irq_chip_data(data);
+	struct s5m_irq_data *irq_data = irq_to_s5m8767_irq(s5m87xx,
+							       data->irq);
+
+	s5m87xx->irq_masks_cur[irq_data->reg - 1] &= ~irq_data->mask;
+}
+
+static void s5m8767_irq_mask(struct irq_data *data)
+{
+	struct s5m87xx_dev *s5m87xx = irq_data_get_irq_chip_data(data);
+	struct s5m_irq_data *irq_data = irq_to_s5m8767_irq(s5m87xx,
+							       data->irq);
+
+	s5m87xx->irq_masks_cur[irq_data->reg - 1] |= irq_data->mask;
+}
+
+static struct irq_chip s5m8767_irq_chip = {
+	.name = "s5m8767",
+	.irq_bus_lock = s5m8767_irq_lock,
+	.irq_bus_sync_unlock = s5m8767_irq_sync_unlock,
+	.irq_mask = s5m8767_irq_mask,
+	.irq_unmask = s5m8767_irq_unmask,
+};
+
+static inline struct s5m_irq_data *
+irq_to_s5m8763_irq(struct s5m87xx_dev *s5m87xx, int irq)
+{
+	return &s5m8763_irqs[irq - s5m87xx->irq_base];
+}
+
+static void s5m8763_irq_lock(struct irq_data *data)
+{
+	struct s5m87xx_dev *s5m87xx = irq_data_get_irq_chip_data(data);
+
+	mutex_lock(&s5m87xx->irqlock);
+}
+
+static void s5m8763_irq_sync_unlock(struct irq_data *data)
+{
+	struct s5m87xx_dev *s5m87xx = irq_data_get_irq_chip_data(data);
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(s5m87xx->irq_masks_cur); i++) {
+		if (s5m87xx->irq_masks_cur[i] != s5m87xx->irq_masks_cache[i]) {
+			s5m87xx->irq_masks_cache[i] = s5m87xx->irq_masks_cur[i];
+			s5m_reg_write(s5m87xx, S5M8763_REG_IRQM1 + i,
+					s5m87xx->irq_masks_cur[i]);
+		}
+	}
+
+	mutex_unlock(&s5m87xx->irqlock);
+}
+
+static void s5m8763_irq_unmask(struct irq_data *data)
+{
+	struct s5m87xx_dev *s5m87xx = irq_data_get_irq_chip_data(data);
+	struct s5m_irq_data *irq_data = irq_to_s5m8763_irq(s5m87xx,
+							       data->irq);
+
+	s5m87xx->irq_masks_cur[irq_data->reg - 1] &= ~irq_data->mask;
+}
+
+static void s5m8763_irq_mask(struct irq_data *data)
+{
+	struct s5m87xx_dev *s5m87xx = irq_data_get_irq_chip_data(data);
+	struct s5m_irq_data *irq_data = irq_to_s5m8763_irq(s5m87xx,
+							       data->irq);
+
+	s5m87xx->irq_masks_cur[irq_data->reg - 1] |= irq_data->mask;
+}
+
+static struct irq_chip s5m8763_irq_chip = {
+	.name = "s5m8763",
+	.irq_bus_lock = s5m8763_irq_lock,
+	.irq_bus_sync_unlock = s5m8763_irq_sync_unlock,
+	.irq_mask = s5m8763_irq_mask,
+	.irq_unmask = s5m8763_irq_unmask,
+};
+
+
+static irqreturn_t s5m8767_irq_thread(int irq, void *data)
+{
+	struct s5m87xx_dev *s5m87xx = data;
+	u8 irq_reg[NUM_IRQ_REGS-1];
+	int ret;
+	int i;
+
+
+	ret = s5m_bulk_read(s5m87xx, S5M8767_REG_INT1,
+				NUM_IRQ_REGS - 1, irq_reg);
+	if (ret < 0) {
+		dev_err(s5m87xx->dev, "Failed to read interrupt register: %d\n",
+				ret);
+		return IRQ_NONE;
+	}
+
+	for (i = 0; i < NUM_IRQ_REGS - 1; i++)
+		irq_reg[i] &= ~s5m87xx->irq_masks_cur[i];
+
+	for (i = 0; i < S5M8767_IRQ_NR; i++) {
+		if (irq_reg[s5m8767_irqs[i].reg - 1] & s5m8767_irqs[i].mask)
+			handle_nested_irq(s5m87xx->irq_base + i);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t s5m8763_irq_thread(int irq, void *data)
+{
+	struct s5m87xx_dev *s5m87xx = data;
+	u8 irq_reg[NUM_IRQ_REGS];
+	int ret;
+	int i;
+
+	ret = s5m_bulk_read(s5m87xx, S5M8763_REG_IRQ1,
+				NUM_IRQ_REGS, irq_reg);
+	if (ret < 0) {
+		dev_err(s5m87xx->dev, "Failed to read interrupt register: %d\n",
+				ret);
+		return IRQ_NONE;
+	}
+
+	for (i = 0; i < NUM_IRQ_REGS; i++)
+		irq_reg[i] &= ~s5m87xx->irq_masks_cur[i];
+
+	for (i = 0; i < S5M8763_IRQ_NR; i++) {
+		if (irq_reg[s5m8763_irqs[i].reg - 1] & s5m8763_irqs[i].mask)
+			handle_nested_irq(s5m87xx->irq_base + i);
+	}
+
+	return IRQ_HANDLED;
+}
+
+int s5m_irq_resume(struct s5m87xx_dev *s5m87xx)
+{
+	if (s5m87xx->irq && s5m87xx->irq_base){
+		switch (s5m87xx->device_type) {
+		case S5M8763X:
+			s5m8763_irq_thread(s5m87xx->irq_base, s5m87xx);
+			break;
+		case S5M8767X:
+			s5m8767_irq_thread(s5m87xx->irq_base, s5m87xx);
+			break;
+		default:
+			break;
+
+		}
+	}
+	return 0;
+}
+
+int s5m_irq_init(struct s5m87xx_dev *s5m87xx)
+{
+	int i;
+	int cur_irq;
+	int ret = 0;
+	int type = s5m87xx->device_type;
+
+	if (!s5m87xx->irq) {
+		dev_warn(s5m87xx->dev,
+			 "No interrupt specified, no interrupts\n");
+		s5m87xx->irq_base = 0;
+		return 0;
+	}
+
+	if (!s5m87xx->irq_base) {
+		dev_err(s5m87xx->dev,
+			"No interrupt base specified, no interrupts\n");
+		return 0;
+	}
+
+	mutex_init(&s5m87xx->irqlock);
+
+	switch (type) {
+	case S5M8763X:
+		for (i = 0; i < NUM_IRQ_REGS; i++) {
+			s5m87xx->irq_masks_cur[i] = 0xff;
+			s5m87xx->irq_masks_cache[i] = 0xff;
+			s5m_reg_write(s5m87xx, S5M8763_REG_IRQM1 + i,
+						0xff);
+		}
+
+		s5m_reg_write(s5m87xx, S5M8763_REG_STATUSM1, 0xff);
+		s5m_reg_write(s5m87xx, S5M8763_REG_STATUSM2, 0xff);
+
+		for (i = 0; i < S5M8763_IRQ_NR; i++) {
+			cur_irq = i + s5m87xx->irq_base;
+			irq_set_chip_data(cur_irq, s5m87xx);
+			irq_set_chip_and_handler(cur_irq, &s5m8763_irq_chip,
+						 handle_edge_irq);
+			irq_set_nested_thread(cur_irq, 1);
+#ifdef CONFIG_ARM
+			set_irq_flags(cur_irq, IRQF_VALID);
+#else
+			irq_set_noprobe(cur_irq);
+#endif
+		}
+
+		ret = request_threaded_irq(s5m87xx->irq, NULL,
+					s5m8763_irq_thread,
+					IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+					"s5m87xx-irq", s5m87xx);
+		if (ret) {
+			dev_err(s5m87xx->dev, "Failed to request IRQ %d: %d\n",
+				s5m87xx->irq, ret);
+			return ret;
+		}
+		break;
+	case S5M8767X:
+		for (i = 0; i < NUM_IRQ_REGS - 1; i++) {
+			s5m87xx->irq_masks_cur[i] = 0xff;
+			s5m87xx->irq_masks_cache[i] = 0xff;
+			s5m_reg_write(s5m87xx, S5M8767_REG_INT1M + i,
+						0xff);
+		}
+		for (i = 0; i < S5M8767_IRQ_NR; i++) {
+			cur_irq = i + s5m87xx->irq_base;
+			irq_set_chip_data(cur_irq, s5m87xx);
+			if (ret) {
+				dev_err(s5m87xx->dev,
+					"Failed to irq_set_chip_data %d: %d\n",
+					s5m87xx->irq, ret);
+				return ret;
+			}
+
+			irq_set_chip_and_handler(cur_irq, &s5m8767_irq_chip,
+						 handle_edge_irq);
+			irq_set_nested_thread(cur_irq, 1);
+#ifdef CONFIG_ARM
+			set_irq_flags(cur_irq, IRQF_VALID);
+#else
+			irq_set_noprobe(cur_irq);
+#endif
+		}
+
+		ret = request_threaded_irq(s5m87xx->irq, NULL,
+					   s5m8767_irq_thread,
+					   IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+					   "s5m87xx-irq", s5m87xx);
+		if (ret) {
+			dev_err(s5m87xx->dev, "Failed to request IRQ %d: %d\n",
+				s5m87xx->irq, ret);
+			return ret;
+		}
+		break;
+	default:
+		break;
+	}
+
+	if (!s5m87xx->ono)
+		return 0;
+
+	switch (type) {
+	case S5M8763X:
+		ret = request_threaded_irq(s5m87xx->ono, NULL,
+						s5m8763_irq_thread,
+						IRQF_TRIGGER_FALLING |
+						IRQF_TRIGGER_RISING |
+						IRQF_ONESHOT, "s5m87xx-ono",
+						s5m87xx);
+		break;
+	case S5M8767X:
+		ret = request_threaded_irq(s5m87xx->ono, NULL,
+					s5m8767_irq_thread,
+					IRQF_TRIGGER_FALLING |
+					IRQF_TRIGGER_RISING |
+					IRQF_ONESHOT, "s5m87xx-ono", s5m87xx);
+		break;
+	default:
+		break;
+	}
+
+	if (ret)
+		dev_err(s5m87xx->dev, "Failed to request IRQ %d: %d\n",
+			s5m87xx->ono, ret);
+
+	return 0;
+}
+
+void s5m_irq_exit(struct s5m87xx_dev *s5m87xx)
+{
+	if (s5m87xx->ono)
+		free_irq(s5m87xx->ono, s5m87xx);
+
+	if (s5m87xx->irq)
+		free_irq(s5m87xx->irq, s5m87xx);
+}

drivers/mfd/sm501.c

@@ -1720,7 +1720,7 @@ static int sm501_plat_remove(struct platform_device *dev)
 	return 0;
 }
 
-static struct pci_device_id sm501_pci_tbl[] = {
+static DEFINE_PCI_DEVICE_TABLE(sm501_pci_tbl) = {
 	{ 0x126f, 0x0501, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 	{ 0, },
 };

drivers/mfd/stmpe-i2c.c

+/*
+ * ST Microelectronics MFD: stmpe's i2c client specific driver
+ *
+ * Copyright (C) ST-Ericsson SA 2010
+ * Copyright (C) ST Microelectronics SA 2011
+ *
+ * License Terms: GNU General Public License, version 2
+ * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
+ * Author: Viresh Kumar <viresh.kumar@st.com> for ST Microelectronics
+ */
+
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include "stmpe.h"
+
+static int i2c_reg_read(struct stmpe *stmpe, u8 reg)
+{
+	struct i2c_client *i2c = stmpe->client;
+
+	return i2c_smbus_read_byte_data(i2c, reg);
+}
+
+static int i2c_reg_write(struct stmpe *stmpe, u8 reg, u8 val)
+{
+	struct i2c_client *i2c = stmpe->client;
+
+	return i2c_smbus_write_byte_data(i2c, reg, val);
+}
+
+static int i2c_block_read(struct stmpe *stmpe, u8 reg, u8 length, u8 *values)
+{
+	struct i2c_client *i2c = stmpe->client;
+
+	return i2c_smbus_read_i2c_block_data(i2c, reg, length, values);
+}
+
+static int i2c_block_write(struct stmpe *stmpe, u8 reg, u8 length,
+		const u8 *values)
+{
+	struct i2c_client *i2c = stmpe->client;
+
+	return i2c_smbus_write_i2c_block_data(i2c, reg, length, values);
+}
+
+static struct stmpe_client_info i2c_ci = {
+	.read_byte = i2c_reg_read,
+	.write_byte = i2c_reg_write,
+	.read_block = i2c_block_read,
+	.write_block = i2c_block_write,
+};
+
+static int __devinit
+stmpe_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
+{
+	i2c_ci.data = (void *)id;
+	i2c_ci.irq = i2c->irq;
+	i2c_ci.client = i2c;
+	i2c_ci.dev = &i2c->dev;
+
+	return stmpe_probe(&i2c_ci, id->driver_data);
+}
+
+static int __devexit stmpe_i2c_remove(struct i2c_client *i2c)
+{
+	struct stmpe *stmpe = dev_get_drvdata(&i2c->dev);
+
+	return stmpe_remove(stmpe);
+}
+
+static const struct i2c_device_id stmpe_i2c_id[] = {
+	{ "stmpe610", STMPE610 },
+	{ "stmpe801", STMPE801 },
+	{ "stmpe811", STMPE811 },
+	{ "stmpe1601", STMPE1601 },
+	{ "stmpe2401", STMPE2401 },
+	{ "stmpe2403", STMPE2403 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, stmpe_id);
+
+static struct i2c_driver stmpe_i2c_driver = {
+	.driver.name	= "stmpe-i2c",
+	.driver.owner	= THIS_MODULE,
+#ifdef CONFIG_PM
+	.driver.pm	= &stmpe_dev_pm_ops,
+#endif
+	.probe		= stmpe_i2c_probe,
+	.remove		= __devexit_p(stmpe_i2c_remove),
+	.id_table	= stmpe_i2c_id,
+};
+
+static int __init stmpe_init(void)
+{
+	return i2c_add_driver(&stmpe_i2c_driver);
+}
+subsys_initcall(stmpe_init);
+
+static void __exit stmpe_exit(void)
+{
+	i2c_del_driver(&stmpe_i2c_driver);
+}
+module_exit(stmpe_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("STMPE MFD I2C Interface Driver");
+MODULE_AUTHOR("Rabin Vincent <rabin.vincent@stericsson.com>");

drivers/mfd/stmpe-spi.c

+/*
+ * ST Microelectronics MFD: stmpe's spi client specific driver
+ *
+ * Copyright (C) ST Microelectronics SA 2011
+ *
+ * License Terms: GNU General Public License, version 2
+ * Author: Viresh Kumar <viresh.kumar@st.com> for ST Microelectronics
+ */
+
+#include <linux/spi/spi.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include "stmpe.h"
+
+#define READ_CMD	(1 << 7)
+
+static int spi_reg_read(struct stmpe *stmpe, u8 reg)
+{
+	struct spi_device *spi = stmpe->client;
+	int status = spi_w8r16(spi, reg | READ_CMD);
+
+	return (status < 0) ? status : status >> 8;
+}
+
+static int spi_reg_write(struct stmpe *stmpe, u8 reg, u8 val)
+{
+	struct spi_device *spi = stmpe->client;
+	u16 cmd = (val << 8) | reg;
+
+	return spi_write(spi, (const u8 *)&cmd, 2);
+}
+
+static int spi_block_read(struct stmpe *stmpe, u8 reg, u8 length, u8 *values)
+{
+	int ret, i;
+
+	for (i = 0; i < length; i++) {
+		ret = spi_reg_read(stmpe, reg + i);
+		if (ret < 0)
+			return ret;
+		*(values + i) = ret;
+	}
+
+	return 0;
+}
+
+static int spi_block_write(struct stmpe *stmpe, u8 reg, u8 length,
+		const u8 *values)
+{
+	int ret = 0, i;
+
+	for (i = length; i > 0; i--, reg++) {
+		ret = spi_reg_write(stmpe, reg, *(values + i - 1));
+		if (ret < 0)
+			return ret;
+	}
+
+	return ret;
+}
+
+static void spi_init(struct stmpe *stmpe)
+{
+	struct spi_device *spi = stmpe->client;
+
+	spi->bits_per_word = 8;
+
+	/* This register is only present for stmpe811 */
+	if (stmpe->variant->id_val == 0x0811)
+		spi_reg_write(stmpe, STMPE811_REG_SPI_CFG, spi->mode);
+
+	if (spi_setup(spi) < 0)
+		dev_dbg(&spi->dev, "spi_setup failed\n");
+}
+
+static struct stmpe_client_info spi_ci = {
+	.read_byte = spi_reg_read,
+	.write_byte = spi_reg_write,
+	.read_block = spi_block_read,
+	.write_block = spi_block_write,
+	.init = spi_init,
+};
+
+static int __devinit
+stmpe_spi_probe(struct spi_device *spi)
+{
+	const struct spi_device_id *id = spi_get_device_id(spi);
+
+	/* don't exceed max specified rate - 1MHz - Limitation of STMPE */
+	if (spi->max_speed_hz > 1000000) {
+		dev_dbg(&spi->dev, "f(sample) %d KHz?\n",
+				(spi->max_speed_hz/1000));
+		return -EINVAL;
+	}
+
+	spi_ci.irq = spi->irq;
+	spi_ci.client = spi;
+	spi_ci.dev = &spi->dev;
+
+	return stmpe_probe(&spi_ci, id->driver_data);
+}
+
+static int __devexit stmpe_spi_remove(struct spi_device *spi)
+{
+	struct stmpe *stmpe = dev_get_drvdata(&spi->dev);
+
+	return stmpe_remove(stmpe);
+}
+
+static const struct spi_device_id stmpe_spi_id[] = {
+	{ "stmpe610", STMPE610 },
+	{ "stmpe801", STMPE801 },
+	{ "stmpe811", STMPE811 },
+	{ "stmpe1601", STMPE1601 },
+	{ "stmpe2401", STMPE2401 },
+	{ "stmpe2403", STMPE2403 },
+	{ }
+};
+MODULE_DEVICE_TABLE(spi, stmpe_id);
+
+static struct spi_driver stmpe_spi_driver = {
+	.driver = {
+		.name	= "stmpe-spi",
+		.bus	= &spi_bus_type,
+		.owner	= THIS_MODULE,
+#ifdef CONFIG_PM
+		.pm	= &stmpe_dev_pm_ops,
+#endif
+	},
+	.probe		= stmpe_spi_probe,
+	.remove		= __devexit_p(stmpe_spi_remove),
+	.id_table	= stmpe_spi_id,
+};
+
+static int __init stmpe_init(void)
+{
+	return spi_register_driver(&stmpe_spi_driver);
+}
+subsys_initcall(stmpe_init);
+
+static void __exit stmpe_exit(void)
+{
+	spi_unregister_driver(&stmpe_spi_driver);
+}
+module_exit(stmpe_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("STMPE MFD SPI Interface Driver");
+MODULE_AUTHOR("Viresh Kumar <viresh.kumar@st.com>");

drivers/mfd/stmpe.c

 /*
+ * ST Microelectronics MFD: stmpe's driver
+ *
  * Copyright (C) ST-Ericsson SA 2010
  *
  * License Terms: GNU General Public License, version 2
  * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
  */
 
+#include <linux/gpio.h>
+#include <linux/export.h>
 #include <linux/kernel.h>
-#include <linux/module.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
+#include <linux/pm.h>
 #include <linux/slab.h>
-#include <linux/i2c.h>
 #include <linux/mfd/core.h>
-#include <linux/mfd/stmpe.h>
 #include "stmpe.h"
 
 static int __stmpe_enable(struct stmpe *stmpe, unsigned int blocks)
@@ -29,10 +31,9 @@ static int __stmpe_reg_read(struct stmpe *stmpe, u8 reg)
 {
 	int ret;
 
-	ret = i2c_smbus_read_byte_data(stmpe->i2c, reg);
+	ret = stmpe->ci->read_byte(stmpe, reg);
 	if (ret < 0)
-		dev_err(stmpe->dev, "failed to read reg %#x: %d\n",
-			reg, ret);
+		dev_err(stmpe->dev, "failed to read reg %#x: %d\n", reg, ret);
 
 	dev_vdbg(stmpe->dev, "rd: reg %#x => data %#x\n", reg, ret);
 
@@ -45,10 +46,9 @@ static int __stmpe_reg_write(struct stmpe *stmpe, u8 reg, u8 val)
 
 	dev_vdbg(stmpe->dev, "wr: reg %#x <= %#x\n", reg, val);
 
-	ret = i2c_smbus_write_byte_data(stmpe->i2c, reg, val);
+	ret = stmpe->ci->write_byte(stmpe, reg, val);
 	if (ret < 0)
-		dev_err(stmpe->dev, "failed to write reg %#x: %d\n",
-			reg, ret);
+		dev_err(stmpe->dev, "failed to write reg %#x: %d\n", reg, ret);
 
 	return ret;
 }
@@ -72,10 +72,9 @@ static int __stmpe_block_read(struct stmpe *stmpe, u8 reg, u8 length,
 {
 	int ret;
 
-	ret = i2c_smbus_read_i2c_block_data(stmpe->i2c, reg, length, values);
+	ret = stmpe->ci->read_block(stmpe, reg, length, values);
 	if (ret < 0)
-		dev_err(stmpe->dev, "failed to read regs %#x: %d\n",
-			reg, ret);
+		dev_err(stmpe->dev, "failed to read regs %#x: %d\n", reg, ret);
 
 	dev_vdbg(stmpe->dev, "rd: reg %#x (%d) => ret %#x\n", reg, length, ret);
 	stmpe_dump_bytes("stmpe rd: ", values, length);
@@ -91,11 +90,9 @@ static int __stmpe_block_write(struct stmpe *stmpe, u8 reg, u8 length,
 	dev_vdbg(stmpe->dev, "wr: regs %#x (%d)\n", reg, length);
 	stmpe_dump_bytes("stmpe wr: ", values, length);
 
-	ret = i2c_smbus_write_i2c_block_data(stmpe->i2c, reg, length,
-					     values);
+	ret = stmpe->ci->write_block(stmpe, reg, length, values);
 	if (ret < 0)
-		dev_err(stmpe->dev, "failed to write regs %#x: %d\n",
-			reg, ret);
+		dev_err(stmpe->dev, "failed to write regs %#x: %d\n", reg, ret);
 
 	return ret;
 }
@@ -245,12 +242,14 @@ int stmpe_set_altfunc(struct stmpe *stmpe, u32 pins, enum stmpe_block block)
 	u8 regaddr = stmpe->regs[STMPE_IDX_GPAFR_U_MSB];
 	int af_bits = variant->af_bits;
 	int numregs = DIV_ROUND_UP(stmpe->num_gpios * af_bits, 8);
-	int afperreg = 8 / af_bits;
 	int mask = (1 << af_bits) - 1;
 	u8 regs[numregs];
-	int af;
-	int ret;
+	int af, afperreg, ret;
+
+	if (!variant->get_altfunc)
+		return 0;
 
+	afperreg = 8 / af_bits;
 	mutex_lock(&stmpe->lock);
 
 	ret = __stmpe_enable(stmpe, STMPE_BLOCK_GPIO);
@@ -325,7 +324,51 @@ static struct mfd_cell stmpe_keypad_cell = {
 };
 
 /*
- * Touchscreen (STMPE811)
+ * STMPE801
+ */
+static const u8 stmpe801_regs[] = {
+	[STMPE_IDX_CHIP_ID]	= STMPE801_REG_CHIP_ID,
+	[STMPE_IDX_ICR_LSB]	= STMPE801_REG_SYS_CTRL,
+	[STMPE_IDX_GPMR_LSB]	= STMPE801_REG_GPIO_MP_STA,
+	[STMPE_IDX_GPSR_LSB]	= STMPE801_REG_GPIO_SET_PIN,
+	[STMPE_IDX_GPCR_LSB]	= STMPE801_REG_GPIO_SET_PIN,
+	[STMPE_IDX_GPDR_LSB]	= STMPE801_REG_GPIO_DIR,
+	[STMPE_IDX_IEGPIOR_LSB] = STMPE801_REG_GPIO_INT_EN,
+	[STMPE_IDX_ISGPIOR_MSB] = STMPE801_REG_GPIO_INT_STA,
+
+};
+
+static struct stmpe_variant_block stmpe801_blocks[] = {
+	{
+		.cell	= &stmpe_gpio_cell,
+		.irq	= 0,
+		.block	= STMPE_BLOCK_GPIO,
+	},
+};
+
+static int stmpe801_enable(struct stmpe *stmpe, unsigned int blocks,
+			   bool enable)
+{
+	if (blocks & STMPE_BLOCK_GPIO)
+		return 0;
+	else
+		return -EINVAL;
+}
+
+static struct stmpe_variant_info stmpe801 = {
+	.name		= "stmpe801",
+	.id_val		= STMPE801_ID,
+	.id_mask	= 0xffff,
+	.num_gpios	= 8,
+	.regs		= stmpe801_regs,
+	.blocks		= stmpe801_blocks,
+	.num_blocks	= ARRAY_SIZE(stmpe801_blocks),
+	.num_irqs	= STMPE801_NR_INTERNAL_IRQS,
+	.enable		= stmpe801_enable,
+};
+
+/*
+ * Touchscreen (STMPE811 or STMPE610)
  */
 
 static struct resource stmpe_ts_resources[] = {
@@ -350,7 +393,7 @@ static struct mfd_cell stmpe_ts_cell = {
 };
 
 /*
- * STMPE811
+ * STMPE811 or STMPE610
  */
 
 static const u8 stmpe811_regs[] = {
@@ -421,6 +464,21 @@ static struct stmpe_variant_info stmpe811 = {
 	.get_altfunc	= stmpe811_get_altfunc,
 };
 
+/* Similar to 811, except number of gpios */
+static struct stmpe_variant_info stmpe610 = {
+	.name		= "stmpe610",
+	.id_val		= 0x0811,
+	.id_mask	= 0xffff,
+	.num_gpios	= 6,
+	.af_bits	= 1,
+	.regs		= stmpe811_regs,
+	.blocks		= stmpe811_blocks,
+	.num_blocks	= ARRAY_SIZE(stmpe811_blocks),
+	.num_irqs	= STMPE811_NR_INTERNAL_IRQS,
+	.enable		= stmpe811_enable,
+	.get_altfunc	= stmpe811_get_altfunc,
+};
+
 /*
  * STMPE1601
  */
@@ -655,6 +713,8 @@ static struct stmpe_variant_info stmpe2403 = {
 };
 
 static struct stmpe_variant_info *stmpe_variant_info[] = {
+	[STMPE610]	= &stmpe610,
+	[STMPE801]	= &stmpe801,
 	[STMPE811]	= &stmpe811,
 	[STMPE1601]	= &stmpe1601,
 	[STMPE2401]	= &stmpe2401,
@@ -671,6 +731,11 @@ static irqreturn_t stmpe_irq(int irq, void *data)
 	int ret;
 	int i;
 
+	if (variant->id_val == STMPE801_ID) {
+		handle_nested_irq(stmpe->irq_base);
+		return IRQ_HANDLED;
+	}
+
 	ret = stmpe_block_read(stmpe, israddr, num, isr);
 	if (ret < 0)
 		return IRQ_NONE;
@@ -757,14 +822,17 @@ static struct irq_chip stmpe_irq_chip = {
 
 static int __devinit stmpe_irq_init(struct stmpe *stmpe)
 {
+	struct irq_chip *chip = NULL;
 	int num_irqs = stmpe->variant->num_irqs;
 	int base = stmpe->irq_base;
 	int irq;
 
+	if (stmpe->variant->id_val != STMPE801_ID)
+		chip = &stmpe_irq_chip;
+
 	for (irq = base; irq < base + num_irqs; irq++) {
 		irq_set_chip_data(irq, stmpe);
-		irq_set_chip_and_handler(irq, &stmpe_irq_chip,
-					 handle_edge_irq);
+		irq_set_chip_and_handler(irq, chip, handle_edge_irq);
 		irq_set_nested_thread(irq, 1);
 #ifdef CONFIG_ARM
 		set_irq_flags(irq, IRQF_VALID);
@@ -796,7 +864,7 @@ static int __devinit stmpe_chip_init(struct stmpe *stmpe)
 	unsigned int irq_trigger = stmpe->pdata->irq_trigger;
 	int autosleep_timeout = stmpe->pdata->autosleep_timeout;
 	struct stmpe_variant_info *variant = stmpe->variant;
-	u8 icr = STMPE_ICR_LSB_GIM;
+	u8 icr;
 	unsigned int id;
 	u8 data[2];
 	int ret;
@@ -819,16 +887,32 @@ static int __devinit stmpe_chip_init(struct stmpe *stmpe)
 	if (ret)
 		return ret;
 
-	if (irq_trigger == IRQF_TRIGGER_FALLING ||
-	    irq_trigger == IRQF_TRIGGER_RISING)
-		icr |= STMPE_ICR_LSB_EDGE;
+	if (id == STMPE801_ID)
+		icr = STMPE801_REG_SYS_CTRL_INT_EN;
+	else
+		icr = STMPE_ICR_LSB_GIM;
+
+	/* STMPE801 doesn't support Edge interrupts */
+	if (id != STMPE801_ID) {
+		if (irq_trigger == IRQF_TRIGGER_FALLING ||
+				irq_trigger == IRQF_TRIGGER_RISING)
+			icr |= STMPE_ICR_LSB_EDGE;
+	}
 
 	if (irq_trigger == IRQF_TRIGGER_RISING ||
-	    irq_trigger == IRQF_TRIGGER_HIGH)
-		icr |= STMPE_ICR_LSB_HIGH;
+			irq_trigger == IRQF_TRIGGER_HIGH) {
+		if (id == STMPE801_ID)
+			icr |= STMPE801_REG_SYS_CTRL_INT_HI;
+		else
+			icr |= STMPE_ICR_LSB_HIGH;
+	}
 
-	if (stmpe->pdata->irq_invert_polarity)
-		icr ^= STMPE_ICR_LSB_HIGH;
+	if (stmpe->pdata->irq_invert_polarity) {
+		if (id == STMPE801_ID)
+			icr ^= STMPE801_REG_SYS_CTRL_INT_HI;
+		else
+			icr ^= STMPE_ICR_LSB_HIGH;
+	}
 
 	if (stmpe->pdata->autosleep) {
 		ret = stmpe_autosleep(stmpe, autosleep_timeout);
@@ -873,32 +957,10 @@ static int __devinit stmpe_devices_init(struct stmpe *stmpe)
 	return ret;
 }
 
-#ifdef CONFIG_PM
-static int stmpe_suspend(struct device *dev)
-{
-	struct i2c_client *i2c = to_i2c_client(dev);
-
-	if (device_may_wakeup(&i2c->dev))
-		enable_irq_wake(i2c->irq);
-
-	return 0;
-}
-
-static int stmpe_resume(struct device *dev)
-{
-	struct i2c_client *i2c = to_i2c_client(dev);
-
-	if (device_may_wakeup(&i2c->dev))
-		disable_irq_wake(i2c->irq);
-
-	return 0;
-}
-#endif
-
-static int __devinit stmpe_probe(struct i2c_client *i2c,
-				 const struct i2c_device_id *id)
+/* Called from client specific probe routines */
+int __devinit stmpe_probe(struct stmpe_client_info *ci, int partnum)
 {
-	struct stmpe_platform_data *pdata = i2c->dev.platform_data;
+	struct stmpe_platform_data *pdata = dev_get_platdata(ci->dev);
 	struct stmpe *stmpe;
 	int ret;
 
@@ -912,30 +974,43 @@ static int __devinit stmpe_probe(struct i2c_client *i2c,
 	mutex_init(&stmpe->irq_lock);
 	mutex_init(&stmpe->lock);
 
-	stmpe->dev = &i2c->dev;
-	stmpe->i2c = i2c;
-
+	stmpe->dev = ci->dev;
+	stmpe->client = ci->client;
 	stmpe->pdata = pdata;
 	stmpe->irq_base = pdata->irq_base;
-
-	stmpe->partnum = id->driver_data;
-	stmpe->variant = stmpe_variant_info[stmpe->partnum];
+	stmpe->ci = ci;
+	stmpe->partnum = partnum;
+	stmpe->variant = stmpe_variant_info[partnum];
 	stmpe->regs = stmpe->variant->regs;
 	stmpe->num_gpios = stmpe->variant->num_gpios;
+	dev_set_drvdata(stmpe->dev, stmpe);
 
-	i2c_set_clientdata(i2c, stmpe);
+	if (ci->init)
+		ci->init(stmpe);
+
+	if (pdata->irq_over_gpio) {
+		ret = gpio_request_one(pdata->irq_gpio, GPIOF_DIR_IN, "stmpe");
+		if (ret) {
+			dev_err(stmpe->dev, "failed to request IRQ GPIO: %d\n",
+					ret);
+			goto out_free;
+		}
+
+		stmpe->irq = gpio_to_irq(pdata->irq_gpio);
+	} else {
+		stmpe->irq = ci->irq;
+	}
 
 	ret = stmpe_chip_init(stmpe);
 	if (ret)
-		goto out_free;
+		goto free_gpio;
 
 	ret = stmpe_irq_init(stmpe);
 	if (ret)
-		goto out_free;
+		goto free_gpio;
 
-	ret = request_threaded_irq(stmpe->i2c->irq, NULL, stmpe_irq,
-				   pdata->irq_trigger | IRQF_ONESHOT,
-				   "stmpe", stmpe);
+	ret = request_threaded_irq(stmpe->irq, NULL, stmpe_irq,
+			pdata->irq_trigger | IRQF_ONESHOT, "stmpe", stmpe);
 	if (ret) {
 		dev_err(stmpe->dev, "failed to request IRQ: %d\n", ret);
 		goto out_removeirq;
@@ -951,67 +1026,55 @@ static int __devinit stmpe_probe(struct i2c_client *i2c,
 
 out_removedevs:
 	mfd_remove_devices(stmpe->dev);
-	free_irq(stmpe->i2c->irq, stmpe);
+	free_irq(stmpe->irq, stmpe);
 out_removeirq:
 	stmpe_irq_remove(stmpe);
+free_gpio:
+	if (pdata->irq_over_gpio)
+		gpio_free(pdata->irq_gpio);
 out_free:
 	kfree(stmpe);
 	return ret;
 }
 
-static int __devexit stmpe_remove(struct i2c_client *client)
+int stmpe_remove(struct stmpe *stmpe)
 {
-	struct stmpe *stmpe = i2c_get_clientdata(client);
-
 	mfd_remove_devices(stmpe->dev);
 
-	free_irq(stmpe->i2c->irq, stmpe);
+	free_irq(stmpe->irq, stmpe);
 	stmpe_irq_remove(stmpe);
 
+	if (stmpe->pdata->irq_over_gpio)
+		gpio_free(stmpe->pdata->irq_gpio);
+
 	kfree(stmpe);
 
 	return 0;
 }
 
-static const struct i2c_device_id stmpe_id[] = {
-	{ "stmpe811", STMPE811 },
-	{ "stmpe1601", STMPE1601 },
-	{ "stmpe2401", STMPE2401 },
-	{ "stmpe2403", STMPE2403 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, stmpe_id);
-
 #ifdef CONFIG_PM
-static const struct dev_pm_ops stmpe_dev_pm_ops = {
-	.suspend	= stmpe_suspend,
-	.resume		= stmpe_resume,
-};
-#endif
+static int stmpe_suspend(struct device *dev)
+{
+	struct stmpe *stmpe = dev_get_drvdata(dev);
 
-static struct i2c_driver stmpe_driver = {
-	.driver.name	= "stmpe",
-	.driver.owner	= THIS_MODULE,
-#ifdef CONFIG_PM
-	.driver.pm	= &stmpe_dev_pm_ops,
-#endif
-	.probe		= stmpe_probe,
-	.remove		= __devexit_p(stmpe_remove),
-	.id_table	= stmpe_id,
-};
+	if (device_may_wakeup(dev))
+		enable_irq_wake(stmpe->irq);
 
-static int __init stmpe_init(void)
-{
-	return i2c_add_driver(&stmpe_driver);
+	return 0;
 }
-subsys_initcall(stmpe_init);
 
-static void __exit stmpe_exit(void)
+static int stmpe_resume(struct device *dev)
 {
-	i2c_del_driver(&stmpe_driver);
+	struct stmpe *stmpe = dev_get_drvdata(dev);
+
+	if (device_may_wakeup(dev))
+		disable_irq_wake(stmpe->irq);
+
+	return 0;
 }
-module_exit(stmpe_exit);
 
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("STMPE MFD core driver");
-MODULE_AUTHOR("Rabin Vincent <rabin.vincent@stericsson.com>");
+const struct dev_pm_ops stmpe_dev_pm_ops = {
+	.suspend	= stmpe_suspend,
+	.resume		= stmpe_resume,
+};
+#endif

drivers/mfd/stmpe.h

@@ -8,6 +8,14 @@
 #ifndef __STMPE_H
 #define __STMPE_H
 
+#include <linux/device.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/stmpe.h>
+#include <linux/printk.h>
+#include <linux/types.h>
+
+extern const struct dev_pm_ops stmpe_dev_pm_ops;
+
 #ifdef STMPE_DUMP_BYTES
 static inline void stmpe_dump_bytes(const char *str, const void *buf,
 				    size_t len)
@@ -67,10 +75,54 @@ struct stmpe_variant_info {
 	int (*enable_autosleep)(struct stmpe *stmpe, int autosleep_timeout);
 };
 
+/**
+ * struct stmpe_client_info - i2c or spi specific routines/info
+ * @data: client specific data
+ * @read_byte: read single byte
+ * @write_byte: write single byte
+ * @read_block: read block or multiple bytes
+ * @write_block: write block or multiple bytes
+ * @init: client init routine, called during probe
+ */
+struct stmpe_client_info {
+	void *data;
+	int irq;
+	void *client;
+	struct device *dev;
+	int (*read_byte)(struct stmpe *stmpe, u8 reg);
+	int (*write_byte)(struct stmpe *stmpe, u8 reg, u8 val);
+	int (*read_block)(struct stmpe *stmpe, u8 reg, u8 len, u8 *values);
+	int (*write_block)(struct stmpe *stmpe, u8 reg, u8 len,
+			const u8 *values);
+	void (*init)(struct stmpe *stmpe);
+};
+
+int stmpe_probe(struct stmpe_client_info *ci, int partnum);
+int stmpe_remove(struct stmpe *stmpe);
+
 #define STMPE_ICR_LSB_HIGH	(1 << 2)
 #define STMPE_ICR_LSB_EDGE	(1 << 1)
 #define STMPE_ICR_LSB_GIM	(1 << 0)
 
+/*
+ * STMPE801
+ */
+#define STMPE801_ID			0x0108
+#define STMPE801_NR_INTERNAL_IRQS	1
+
+#define STMPE801_REG_CHIP_ID		0x00
+#define STMPE801_REG_VERSION_ID		0x02
+#define STMPE801_REG_SYS_CTRL		0x04
+#define STMPE801_REG_GPIO_INT_EN	0x08
+#define STMPE801_REG_GPIO_INT_STA	0x09
+#define STMPE801_REG_GPIO_MP_STA	0x10
+#define STMPE801_REG_GPIO_SET_PIN	0x11
+#define STMPE801_REG_GPIO_DIR		0x12
+
+#define STMPE801_REG_SYS_CTRL_RESET	(1 << 7)
+#define STMPE801_REG_SYS_CTRL_INT_EN	(1 << 2)
+#define STMPE801_REG_SYS_CTRL_INT_HI	(1 << 0)
+
 /*
  * STMPE811
  */
@@ -87,6 +139,7 @@ struct stmpe_variant_info {
 
 #define STMPE811_REG_CHIP_ID		0x00
 #define STMPE811_REG_SYS_CTRL2		0x04
+#define STMPE811_REG_SPI_CFG		0x08
 #define STMPE811_REG_INT_CTRL		0x09
 #define STMPE811_REG_INT_EN		0x0A
 #define STMPE811_REG_INT_STA		0x0B

drivers/mfd/t7l66xb.c

@@ -442,21 +442,7 @@ static struct platform_driver t7l66xb_platform_driver = {
 
 /*--------------------------------------------------------------------------*/
 
-static int __init t7l66xb_init(void)
-{
-	int retval = 0;
-
-	retval = platform_driver_register(&t7l66xb_platform_driver);
-	return retval;
-}
-
-static void __exit t7l66xb_exit(void)
-{
-	platform_driver_unregister(&t7l66xb_platform_driver);
-}
-
-module_init(t7l66xb_init);
-module_exit(t7l66xb_exit);
+module_platform_driver(t7l66xb_platform_driver);
 
 MODULE_DESCRIPTION("Toshiba T7L66XB core driver");
 MODULE_LICENSE("GPL v2");

drivers/mfd/tc6387xb.c

@@ -234,19 +234,7 @@ static struct platform_driver tc6387xb_platform_driver = {
 	.resume         = tc6387xb_resume,
 };
 
-
-static int __init tc6387xb_init(void)
-{
-	return platform_driver_register(&tc6387xb_platform_driver);
-}
-
-static void __exit tc6387xb_exit(void)
-{
-	platform_driver_unregister(&tc6387xb_platform_driver);
-}
-
-module_init(tc6387xb_init);
-module_exit(tc6387xb_exit);
+module_platform_driver(tc6387xb_platform_driver);
 
 MODULE_DESCRIPTION("Toshiba TC6387XB core driver");
 MODULE_LICENSE("GPL v2");

drivers/mfd/ti-ssp.c

@@ -458,17 +458,7 @@ static struct platform_driver ti_ssp_driver = {
 	}
 };
 
-static int __init ti_ssp_init(void)
-{
-	return platform_driver_register(&ti_ssp_driver);
-}
-module_init(ti_ssp_init);
-
-static void __exit ti_ssp_exit(void)
-{
-	platform_driver_unregister(&ti_ssp_driver);
-}
-module_exit(ti_ssp_exit);
+module_platform_driver(ti_ssp_driver);
 
 MODULE_DESCRIPTION("Sequencer Serial Port (SSP) Driver");
 MODULE_AUTHOR("Cyril Chemparathy");

drivers/mfd/timberdale.c

@@ -857,7 +857,7 @@ static void __devexit timb_remove(struct pci_dev *dev)
 	kfree(priv);
 }
 
-static struct pci_device_id timberdale_pci_tbl[] = {
+static DEFINE_PCI_DEVICE_TABLE(timberdale_pci_tbl) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_TIMB, PCI_DEVICE_ID_TIMB) },
 	{ 0 }
 };

drivers/mfd/tps65910-irq.c

@@ -215,6 +215,7 @@ int tps65910_irq_init(struct tps65910 *tps65910, int irq,
 
 int tps65910_irq_exit(struct tps65910 *tps65910)
 {
-	free_irq(tps65910->chip_irq, tps65910);
+	if (tps65910->chip_irq)
+		free_irq(tps65910->chip_irq, tps65910);
 	return 0;
 }

drivers/mfd/tps65910.c

@@ -172,15 +172,12 @@ static int tps65910_i2c_probe(struct i2c_client *i2c,
 
 	tps65910_gpio_init(tps65910, pmic_plat_data->gpio_base);
 
-	ret = tps65910_irq_init(tps65910, init_data->irq, init_data);
-	if (ret < 0)
-		goto err;
+	tps65910_irq_init(tps65910, init_data->irq, init_data);
 
 	kfree(init_data);
 	return ret;
 
 err:
-	mfd_remove_devices(tps65910->dev);
 	kfree(tps65910);
 	kfree(init_data);
 	return ret;
@@ -190,8 +187,8 @@ static int tps65910_i2c_remove(struct i2c_client *i2c)
 {
 	struct tps65910 *tps65910 = i2c_get_clientdata(i2c);
 
-	mfd_remove_devices(tps65910->dev);
 	tps65910_irq_exit(tps65910);
+	mfd_remove_devices(tps65910->dev);
 	kfree(tps65910);
 
 	return 0;

drivers/mfd/tps65912-spi.c

@@ -111,7 +111,6 @@ static int __devexit tps65912_spi_remove(struct spi_device *spi)
 static struct spi_driver tps65912_spi_driver = {
 	.driver = {
 		.name = "tps65912",
-		.bus = &spi_bus_type,
 		.owner = THIS_MODULE,
 	},
 	.probe	= tps65912_spi_probe,

drivers/mfd/twl-core.c

@@ -34,6 +34,11 @@
 #include <linux/platform_device.h>
 #include <linux/clk.h>
 #include <linux/err.h>
+#include <linux/device.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/irqdomain.h>
 
 #include <linux/regulator/machine.h>
 
@@ -144,6 +149,9 @@
 
 #define TWL_MODULE_LAST TWL4030_MODULE_LAST
 
+#define TWL4030_NR_IRQS    8
+#define TWL6030_NR_IRQS    20
+
 /* Base Address defns for twl4030_map[] */
 
 /* subchip/slave 0 - USB ID */
@@ -255,6 +263,7 @@ struct twl_client {
 
 static struct twl_client twl_modules[TWL_NUM_SLAVES];
 
+static struct irq_domain domain;
 
 /* mapping the module id to slave id and base address */
 struct twl_mapping {
@@ -1183,14 +1192,48 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	int				status;
 	unsigned			i;
 	struct twl4030_platform_data	*pdata = client->dev.platform_data;
+	struct device_node		*node = client->dev.of_node;
 	u8 temp;
 	int ret = 0;
+	int nr_irqs = TWL4030_NR_IRQS;
+
+	if ((id->driver_data) & TWL6030_CLASS)
+		nr_irqs = TWL6030_NR_IRQS;
+
+	if (node && !pdata) {
+		/*
+		 * XXX: Temporary pdata until the information is correctly
+		 * retrieved by every TWL modules from DT.
+		 */
+		pdata = devm_kzalloc(&client->dev,
+				     sizeof(struct twl4030_platform_data),
+				     GFP_KERNEL);
+		if (!pdata)
+			return -ENOMEM;
+	}
 
 	if (!pdata) {
 		dev_dbg(&client->dev, "no platform data?\n");
 		return -EINVAL;
 	}
 
+	status = irq_alloc_descs(-1, pdata->irq_base, nr_irqs, 0);
+	if (IS_ERR_VALUE(status)) {
+		dev_err(&client->dev, "Fail to allocate IRQ descs\n");
+		return status;
+	}
+
+	pdata->irq_base = status;
+	pdata->irq_end = pdata->irq_base + nr_irqs;
+
+	domain.irq_base = pdata->irq_base;
+	domain.nr_irq = nr_irqs;
+#ifdef CONFIG_OF_IRQ
+	domain.of_node = of_node_get(node);
+	domain.ops = &irq_domain_simple_ops;
+#endif
+	irq_domain_add(&domain);
+
 	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) {
 		dev_dbg(&client->dev, "can't talk I2C?\n");
 		return -EIO;
@@ -1270,7 +1313,13 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
 		twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1);
 	}
 
-	status = add_children(pdata, id->driver_data);
+#ifdef CONFIG_OF_DEVICE
+	if (node)
+		status = of_platform_populate(node, NULL, NULL, &client->dev);
+	else
+#endif
+		status = add_children(pdata, id->driver_data);
+
 fail:
 	if (status < 0)
 		twl_remove(client);

drivers/mfd/twl4030-audio.c

@@ -261,17 +261,7 @@ static struct platform_driver twl4030_audio_driver = {
 	},
 };
 
-static int __devinit twl4030_audio_init(void)
-{
-	return platform_driver_register(&twl4030_audio_driver);
-}
-module_init(twl4030_audio_init);
-
-static void __devexit twl4030_audio_exit(void)
-{
-	platform_driver_unregister(&twl4030_audio_driver);
-}
-module_exit(twl4030_audio_exit);
+module_platform_driver(twl4030_audio_driver);
 
 MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>");
 MODULE_LICENSE("GPL");

drivers/mfd/twl4030-irq.c

@@ -492,7 +492,7 @@ static void twl4030_sih_bus_sync_unlock(struct irq_data *data)
 			u8	bytes[4];
 		} imr;
 
-		/* byte[0] gets overwriten as we write ... */
+		/* byte[0] gets overwritten as we write ... */
 		imr.word = cpu_to_le32(agent->imr << 8);
 		agent->imr_change_pending = false;
 
@@ -667,6 +667,7 @@ int twl4030_sih_setup(int module)
 		irq_set_chip_data(irq, agent);
 		irq_set_chip_and_handler(irq, &twl4030_sih_irq_chip,
 					 handle_edge_irq);
+		irq_set_nested_thread(irq, 1);
 		activate_irq(irq);
 	}
 

drivers/mfd/twl4030-madc.c

@@ -807,19 +807,7 @@ static struct platform_driver twl4030_madc_driver = {
 		   },
 };
 
-static int __init twl4030_madc_init(void)
-{
-	return platform_driver_register(&twl4030_madc_driver);
-}
-
-module_init(twl4030_madc_init);
-
-static void __exit twl4030_madc_exit(void)
-{
-	platform_driver_unregister(&twl4030_madc_driver);
-}
-
-module_exit(twl4030_madc_exit);
+module_platform_driver(twl4030_madc_driver);
 
 MODULE_DESCRIPTION("TWL4030 ADC driver");
 MODULE_LICENSE("GPL");

drivers/mfd/twl4030-power.c

@@ -34,7 +34,8 @@
 static u8 twl4030_start_script_address = 0x2b;
 
 #define PWR_P1_SW_EVENTS	0x10
-#define PWR_DEVOFF	(1<<0)
+#define PWR_DEVOFF		(1 << 0)
+#define SEQ_OFFSYNC		(1 << 0)
 
 #define PHY_TO_OFF_PM_MASTER(p)		(p - 0x36)
 #define PHY_TO_OFF_PM_RECEIVER(p)	(p - 0x5b)
@@ -511,12 +512,27 @@ int twl4030_remove_script(u8 flags)
 	return err;
 }
 
+/*
+ * In master mode, start the power off sequence.
+ * After a successful execution, TWL shuts down the power to the SoC
+ * and all peripherals connected to it.
+ */
+void twl4030_power_off(void)
+{
+	int err;
+
+	err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, PWR_DEVOFF,
+			       TWL4030_PM_MASTER_P1_SW_EVENTS);
+	if (err)
+		pr_err("TWL4030 Unable to power off\n");
+}
+
 void __init twl4030_power_init(struct twl4030_power_data *twl4030_scripts)
 {
 	int err = 0;
 	int i;
 	struct twl4030_resconfig *resconfig;
-	u8 address = twl4030_start_script_address;
+	u8 val, address = twl4030_start_script_address;
 
 	err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER,
 			TWL4030_PM_MASTER_KEY_CFG1,
@@ -548,6 +564,28 @@ void __init twl4030_power_init(struct twl4030_power_data *twl4030_scripts)
 		}
 	}
 
+	/* Board has to be wired properly to use this feature */
+	if (twl4030_scripts->use_poweroff && !pm_power_off) {
+		/* Default for SEQ_OFFSYNC is set, lets ensure this */
+		err = twl_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &val,
+				      TWL4030_PM_MASTER_CFG_P123_TRANSITION);
+		if (err) {
+			pr_warning("TWL4030 Unable to read registers\n");
+
+		} else if (!(val & SEQ_OFFSYNC)) {
+			val |= SEQ_OFFSYNC;
+			err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, val,
+					TWL4030_PM_MASTER_CFG_P123_TRANSITION);
+			if (err) {
+				pr_err("TWL4030 Unable to setup SEQ_OFFSYNC\n");
+				goto relock;
+			}
+		}
+
+		pm_power_off = twl4030_power_off;
+	}
+
+relock:
 	err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0,
 			TWL4030_PM_MASTER_PROTECT_KEY);
 	if (err)

drivers/mfd/twl6040-core.c

@@ -509,13 +509,10 @@ static int __devinit twl6040_probe(struct platform_device *pdev)
 		twl6040->audpwron = -EINVAL;
 
 	if (gpio_is_valid(twl6040->audpwron)) {
-		ret = gpio_request(twl6040->audpwron, "audpwron");
+		ret = gpio_request_one(twl6040->audpwron, GPIOF_OUT_INIT_LOW,
+				       "audpwron");
 		if (ret)
 			goto gpio1_err;
-
-		ret = gpio_direction_output(twl6040->audpwron, 0);
-		if (ret)
-			goto gpio2_err;
 	}
 
 	/* codec interrupt */
@@ -619,18 +616,7 @@ static struct platform_driver twl6040_driver = {
 	},
 };
 
-static int __devinit twl6040_init(void)
-{
-	return platform_driver_register(&twl6040_driver);
-}
-module_init(twl6040_init);
-
-static void __devexit twl6040_exit(void)
-{
-	platform_driver_unregister(&twl6040_driver);
-}
-
-module_exit(twl6040_exit);
+module_platform_driver(twl6040_driver);
 
 MODULE_DESCRIPTION("TWL6040 MFD");
 MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>");

drivers/mfd/ucb1x00-core.c

@@ -36,6 +36,15 @@ static DEFINE_MUTEX(ucb1x00_mutex);
 static LIST_HEAD(ucb1x00_drivers);
 static LIST_HEAD(ucb1x00_devices);
 
+static struct mcp_device_id ucb1x00_id[] = {
+	{ "ucb1x00", 0 },  /* auto-detection */
+	{ "ucb1200", UCB_ID_1200 },
+	{ "ucb1300", UCB_ID_1300 },
+	{ "tc35143", UCB_ID_TC35143 },
+	{ }
+};
+MODULE_DEVICE_TABLE(mcp, ucb1x00_id);
+
 /**
  *	ucb1x00_io_set_dir - set IO direction
  *	@ucb: UCB1x00 structure describing chip
@@ -527,17 +536,33 @@ static struct class ucb1x00_class = {
 
 static int ucb1x00_probe(struct mcp *mcp)
 {
+	const struct mcp_device_id *mid;
 	struct ucb1x00 *ucb;
 	struct ucb1x00_driver *drv;
+	struct ucb1x00_plat_data *pdata;
 	unsigned int id;
 	int ret = -ENODEV;
 	int temp;
 
 	mcp_enable(mcp);
 	id = mcp_reg_read(mcp, UCB_ID);
+	mid = mcp_get_device_id(mcp);
 
-	if (id != UCB_ID_1200 && id != UCB_ID_1300 && id != UCB_ID_TC35143) {
-		printk(KERN_WARNING "UCB1x00 ID not found: %04x\n", id);
+	if (mid && mid->driver_data) {
+		if (id != mid->driver_data) {
+			printk(KERN_WARNING "%s wrong ID %04x found: %04x\n",
+				mid->name, (unsigned int) mid->driver_data, id);
+			goto err_disable;
+		}
+	} else {
+		mid = &ucb1x00_id[1];
+		while (mid->driver_data) {
+			if (id == mid->driver_data)
+				break;
+			mid++;
+		}
+		printk(KERN_WARNING "%s ID not found: %04x\n",
+			ucb1x00_id[0].name, id);
 		goto err_disable;
 	}
 
@@ -546,28 +571,28 @@ static int ucb1x00_probe(struct mcp *mcp)
 	if (!ucb)
 		goto err_disable;
 
-
+	pdata = mcp->attached_device.platform_data;
 	ucb->dev.class = &ucb1x00_class;
 	ucb->dev.parent = &mcp->attached_device;
-	dev_set_name(&ucb->dev, "ucb1x00");
+	dev_set_name(&ucb->dev, mid->name);
 
 	spin_lock_init(&ucb->lock);
 	spin_lock_init(&ucb->io_lock);
 	sema_init(&ucb->adc_sem, 1);
 
-	ucb->id  = id;
+	ucb->id  = mid;
 	ucb->mcp = mcp;
 	ucb->irq = ucb1x00_detect_irq(ucb);
 	if (ucb->irq == NO_IRQ) {
-		printk(KERN_ERR "UCB1x00: IRQ probe failed\n");
+		printk(KERN_ERR "%s: IRQ probe failed\n", mid->name);
 		ret = -ENODEV;
 		goto err_free;
 	}
 
 	ucb->gpio.base = -1;
-	if (mcp->gpio_base != 0) {
+	if (pdata && (pdata->gpio_base >= 0)) {
 		ucb->gpio.label = dev_name(&ucb->dev);
-		ucb->gpio.base = mcp->gpio_base;
+		ucb->gpio.base = pdata->gpio_base;
 		ucb->gpio.ngpio = 10;
 		ucb->gpio.set = ucb1x00_gpio_set;
 		ucb->gpio.get = ucb1x00_gpio_get;
@@ -580,10 +605,10 @@ static int ucb1x00_probe(struct mcp *mcp)
 		dev_info(&ucb->dev, "gpio_base not set so no gpiolib support");
 
 	ret = request_irq(ucb->irq, ucb1x00_irq, IRQF_TRIGGER_RISING,
-			  "UCB1x00", ucb);
+			  mid->name, ucb);
 	if (ret) {
-		printk(KERN_ERR "ucb1x00: unable to grab irq%d: %d\n",
-			ucb->irq, ret);
+		printk(KERN_ERR "%s: unable to grab irq%d: %d\n",
+			mid->name, ucb->irq, ret);
 		goto err_gpio;
 	}
 
@@ -705,6 +730,7 @@ static struct mcp_driver ucb1x00_driver = {
 	.remove		= ucb1x00_remove,
 	.suspend	= ucb1x00_suspend,
 	.resume		= ucb1x00_resume,
+	.id_table	= ucb1x00_id,
 };
 
 static int __init ucb1x00_init(void)

drivers/mfd/ucb1x00-ts.c

@@ -382,7 +382,7 @@ static int ucb1x00_ts_add(struct ucb1x00_dev *dev)
 	ts->adcsync = adcsync ? UCB_SYNC : UCB_NOSYNC;
 
 	idev->name       = "Touchscreen panel";
-	idev->id.product = ts->ucb->id;
+	idev->id.product = ts->ucb->id->driver_data;
 	idev->open       = ucb1x00_ts_open;
 	idev->close      = ucb1x00_ts_close;
 

drivers/mfd/vx855.c

@@ -118,7 +118,7 @@ static void __devexit vx855_remove(struct pci_dev *pdev)
 	pci_disable_device(pdev);
 }
 
-static struct pci_device_id vx855_pci_tbl[] = {
+static DEFINE_PCI_DEVICE_TABLE(vx855_pci_tbl) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VX855) },
 	{ 0, }
 };

drivers/mfd/wm831x-core.c

@@ -559,6 +559,8 @@ static int wm831x_write(struct wm831x *wm831x, unsigned short reg,
 		dev_vdbg(wm831x->dev, "Write %04x to R%d(0x%x)\n",
 			 buf[i], reg + i, reg + i);
 		ret = regmap_write(wm831x->regmap, reg + i, buf[i]);
+		if (ret != 0)
+			return ret;
 	}
 
 	return 0;
@@ -1875,7 +1877,6 @@ int wm831x_device_init(struct wm831x *wm831x, unsigned long id, int irq)
 err_regmap:
 	mfd_remove_devices(wm831x->dev);
 	regmap_exit(wm831x->regmap);
-	kfree(wm831x);
 	return ret;
 }
 
@@ -1887,7 +1888,6 @@ void wm831x_device_exit(struct wm831x *wm831x)
 		free_irq(wm831x->irq_base + WM831X_IRQ_AUXADC_DATA, wm831x);
 	wm831x_irq_exit(wm831x);
 	regmap_exit(wm831x->regmap);
-	kfree(wm831x);
 }
 
 int wm831x_device_suspend(struct wm831x *wm831x)

drivers/mfd/wm831x-i2c.c

@@ -30,7 +30,7 @@ static int wm831x_i2c_probe(struct i2c_client *i2c,
 	struct wm831x *wm831x;
 	int ret;
 
-	wm831x = kzalloc(sizeof(struct wm831x), GFP_KERNEL);
+	wm831x = devm_kzalloc(&i2c->dev, sizeof(struct wm831x), GFP_KERNEL);
 	if (wm831x == NULL)
 		return -ENOMEM;
 
@@ -42,7 +42,6 @@ static int wm831x_i2c_probe(struct i2c_client *i2c,
 		ret = PTR_ERR(wm831x->regmap);
 		dev_err(wm831x->dev, "Failed to allocate register map: %d\n",
 			ret);
-		kfree(wm831x);
 		return ret;
 	}
 

drivers/mfd/wm831x-irq.c

@@ -325,11 +325,6 @@ static inline int irq_data_to_status_reg(struct wm831x_irq_data *irq_data)
 	return WM831X_INTERRUPT_STATUS_1 - 1 + irq_data->reg;
 }
 
-static inline int irq_data_to_mask_reg(struct wm831x_irq_data *irq_data)
-{
-	return WM831X_INTERRUPT_STATUS_1_MASK - 1 + irq_data->reg;
-}
-
 static inline struct wm831x_irq_data *irq_to_wm831x_irq(struct wm831x *wm831x,
 							int irq)
 {
@@ -477,8 +472,7 @@ static irqreturn_t wm831x_irq_thread(int irq, void *data)
 		handle_nested_irq(wm831x->irq_base + WM831X_IRQ_TCHPD);
 	if (primary & WM831X_TCHDATA_INT)
 		handle_nested_irq(wm831x->irq_base + WM831X_IRQ_TCHDATA);
-	if (primary & (WM831X_TCHDATA_EINT | WM831X_TCHPD_EINT))
-		goto out;
+	primary &= ~(WM831X_TCHDATA_EINT | WM831X_TCHPD_EINT);
 
 	for (i = 0; i < ARRAY_SIZE(wm831x_irqs); i++) {
 		int offset = wm831x_irqs[i].reg - 1;

drivers/mfd/wm831x-spi.c

@@ -30,7 +30,7 @@ static int __devinit wm831x_spi_probe(struct spi_device *spi)
 
 	type = (enum wm831x_parent)id->driver_data;
 
-	wm831x = kzalloc(sizeof(struct wm831x), GFP_KERNEL);
+	wm831x = devm_kzalloc(&spi->dev, sizeof(struct wm831x), GFP_KERNEL);
 	if (wm831x == NULL)
 		return -ENOMEM;
 
@@ -45,7 +45,6 @@ static int __devinit wm831x_spi_probe(struct spi_device *spi)
 		ret = PTR_ERR(wm831x->regmap);
 		dev_err(wm831x->dev, "Failed to allocate register map: %d\n",
 			ret);
-		kfree(wm831x);
 		return ret;
 	}
 
@@ -95,7 +94,6 @@ MODULE_DEVICE_TABLE(spi, wm831x_spi_id);
 static struct spi_driver wm831x_spi_driver = {
 	.driver = {
 		.name	= "wm831x",
-		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
 		.pm	= &wm831x_spi_pm,
 	},

drivers/mfd/wm8350-core.c

@@ -573,6 +573,8 @@ int wm8350_device_init(struct wm8350 *wm8350, int irq,
 	u16 id1, id2, mask_rev;
 	u16 cust_id, mode, chip_rev;
 
+	dev_set_drvdata(wm8350->dev, wm8350);
+
 	/* get WM8350 revision and config mode */
 	ret = wm8350->read_dev(wm8350, WM8350_RESET_ID, sizeof(id1), &id1);
 	if (ret != 0) {

drivers/mfd/wm8350-i2c.c

@@ -63,7 +63,7 @@ static int wm8350_i2c_probe(struct i2c_client *i2c,
 	struct wm8350 *wm8350;
 	int ret = 0;
 
-	wm8350 = kzalloc(sizeof(struct wm8350), GFP_KERNEL);
+	wm8350 = devm_kzalloc(&i2c->dev, sizeof(struct wm8350), GFP_KERNEL);
 	if (wm8350 == NULL)
 		return -ENOMEM;
 
@@ -80,7 +80,6 @@ static int wm8350_i2c_probe(struct i2c_client *i2c,
 	return ret;
 
 err:
-	kfree(wm8350);
 	return ret;
 }
 
@@ -89,7 +88,6 @@ static int wm8350_i2c_remove(struct i2c_client *i2c)
 	struct wm8350 *wm8350 = i2c_get_clientdata(i2c);
 
 	wm8350_device_exit(wm8350);
-	kfree(wm8350);
 
 	return 0;
 }

drivers/mfd/wm8400-core.c

@@ -344,7 +344,7 @@ static int wm8400_i2c_probe(struct i2c_client *i2c,
 	struct wm8400 *wm8400;
 	int ret;
 
-	wm8400 = kzalloc(sizeof(struct wm8400), GFP_KERNEL);
+	wm8400 = devm_kzalloc(&i2c->dev, sizeof(struct wm8400), GFP_KERNEL);
 	if (wm8400 == NULL) {
 		ret = -ENOMEM;
 		goto err;
@@ -353,7 +353,7 @@ static int wm8400_i2c_probe(struct i2c_client *i2c,
 	wm8400->regmap = regmap_init_i2c(i2c, &wm8400_regmap_config);
 	if (IS_ERR(wm8400->regmap)) {
 		ret = PTR_ERR(wm8400->regmap);
-		goto struct_err;
+		goto err;
 	}
 
 	wm8400->dev = &i2c->dev;
@@ -367,8 +367,6 @@ static int wm8400_i2c_probe(struct i2c_client *i2c,
 
 map_err:
 	regmap_exit(wm8400->regmap);
-struct_err:
-	kfree(wm8400);
 err:
 	return ret;
 }
@@ -379,7 +377,6 @@ static int wm8400_i2c_remove(struct i2c_client *i2c)
 
 	wm8400_release(wm8400);
 	regmap_exit(wm8400->regmap);
-	kfree(wm8400);
 
 	return 0;
 }

drivers/misc/Kconfig

@@ -500,6 +500,14 @@ config USB_SWITCH_FSA9480
 	  stereo and mono audio, video, microphone and UART data to use
 	  a common connector port.
 
+config MAX8997_MUIC
+	tristate "MAX8997 MUIC Support"
+	depends on MFD_MAX8997
+	help
+	  If you say yes here you get support for the MUIC device of
+	  Maxim MAX8997 PMIC.
+	  The MAX8997 MUIC is a USB port accessory detector and switch.
+
 source "drivers/misc/c2port/Kconfig"
 source "drivers/misc/eeprom/Kconfig"
 source "drivers/misc/cb710/Kconfig"

drivers/misc/Makefile

@@ -48,3 +48,4 @@ obj-y				+= lis3lv02d/
 obj-y				+= carma/
 obj-$(CONFIG_USB_SWITCH_FSA9480) += fsa9480.o
 obj-$(CONFIG_ALTERA_STAPL)	+=altera-stapl/
+obj-$(CONFIG_MAX8997_MUIC)	+= max8997-muic.o

drivers/misc/ab8500-pwm.c

@@ -8,8 +8,8 @@
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/pwm.h>
-#include <linux/mfd/ab8500.h>
 #include <linux/mfd/abx500.h>
+#include <linux/mfd/abx500/ab8500.h>
 #include <linux/module.h>
 
 /*

drivers/misc/max8997-muic.c

+/*
+ * max8997-muic.c - MAX8997 muic driver for the Maxim 8997
+ *
+ *  Copyright (C) 2011 Samsung Electrnoics
+ *  Donggeun Kim <dg77.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/kobject.h>
+#include <linux/mfd/max8997.h>
+#include <linux/mfd/max8997-private.h>
+
+/* MAX8997-MUIC STATUS1 register */
+#define STATUS1_ADC_SHIFT		0
+#define STATUS1_ADCLOW_SHIFT		5
+#define STATUS1_ADCERR_SHIFT		6
+#define STATUS1_ADC_MASK		(0x1f << STATUS1_ADC_SHIFT)
+#define STATUS1_ADCLOW_MASK		(0x1 << STATUS1_ADCLOW_SHIFT)
+#define STATUS1_ADCERR_MASK		(0x1 << STATUS1_ADCERR_SHIFT)
+
+/* MAX8997-MUIC STATUS2 register */
+#define STATUS2_CHGTYP_SHIFT		0
+#define STATUS2_CHGDETRUN_SHIFT		3
+#define STATUS2_DCDTMR_SHIFT		4
+#define STATUS2_DBCHG_SHIFT		5
+#define STATUS2_VBVOLT_SHIFT		6
+#define STATUS2_CHGTYP_MASK		(0x7 << STATUS2_CHGTYP_SHIFT)
+#define STATUS2_CHGDETRUN_MASK		(0x1 << STATUS2_CHGDETRUN_SHIFT)
+#define STATUS2_DCDTMR_MASK		(0x1 << STATUS2_DCDTMR_SHIFT)
+#define STATUS2_DBCHG_MASK		(0x1 << STATUS2_DBCHG_SHIFT)
+#define STATUS2_VBVOLT_MASK		(0x1 << STATUS2_VBVOLT_SHIFT)
+
+/* MAX8997-MUIC STATUS3 register */
+#define STATUS3_OVP_SHIFT		2
+#define STATUS3_OVP_MASK		(0x1 << STATUS3_OVP_SHIFT)
+
+/* MAX8997-MUIC CONTROL1 register */
+#define COMN1SW_SHIFT			0
+#define COMP2SW_SHIFT			3
+#define COMN1SW_MASK			(0x7 << COMN1SW_SHIFT)
+#define COMP2SW_MASK			(0x7 << COMP2SW_SHIFT)
+#define SW_MASK				(COMP2SW_MASK | COMN1SW_MASK)
+
+#define MAX8997_SW_USB		((1 << COMP2SW_SHIFT) | (1 << COMN1SW_SHIFT))
+#define MAX8997_SW_AUDIO	((2 << COMP2SW_SHIFT) | (2 << COMN1SW_SHIFT))
+#define MAX8997_SW_UART		((3 << COMP2SW_SHIFT) | (3 << COMN1SW_SHIFT))
+#define MAX8997_SW_OPEN		((0 << COMP2SW_SHIFT) | (0 << COMN1SW_SHIFT))
+
+#define	MAX8997_ADC_GROUND		0x00
+#define	MAX8997_ADC_MHL			0x01
+#define	MAX8997_ADC_JIG_USB_1		0x18
+#define	MAX8997_ADC_JIG_USB_2		0x19
+#define	MAX8997_ADC_DESKDOCK		0x1a
+#define	MAX8997_ADC_JIG_UART		0x1c
+#define	MAX8997_ADC_CARDOCK		0x1d
+#define	MAX8997_ADC_OPEN		0x1f
+
+struct max8997_muic_irq {
+	unsigned int irq;
+	const char *name;
+};
+
+static struct max8997_muic_irq muic_irqs[] = {
+	{ MAX8997_MUICIRQ_ADCError, "muic-ADC_error" },
+	{ MAX8997_MUICIRQ_ADCLow, "muic-ADC_low" },
+	{ MAX8997_MUICIRQ_ADC, "muic-ADC" },
+	{ MAX8997_MUICIRQ_VBVolt, "muic-VB_voltage" },
+	{ MAX8997_MUICIRQ_DBChg, "muic-DB_charger" },
+	{ MAX8997_MUICIRQ_DCDTmr, "muic-DCD_timer" },
+	{ MAX8997_MUICIRQ_ChgDetRun, "muic-CDR_status" },
+	{ MAX8997_MUICIRQ_ChgTyp, "muic-charger_type" },
+	{ MAX8997_MUICIRQ_OVP, "muic-over_voltage" },
+};
+
+struct max8997_muic_info {
+	struct device *dev;
+	struct max8997_dev *iodev;
+	struct i2c_client *muic;
+	struct max8997_muic_platform_data *muic_pdata;
+
+	int irq;
+	struct work_struct irq_work;
+
+	enum max8997_muic_charger_type pre_charger_type;
+	int pre_adc;
+
+	struct mutex mutex;
+};
+
+static int max8997_muic_handle_usb(struct max8997_muic_info *info,
+			enum max8997_muic_usb_type usb_type, bool attached)
+{
+	struct max8997_muic_platform_data *mdata = info->muic_pdata;
+	int ret = 0;
+
+	if (usb_type == MAX8997_USB_HOST) {
+		/* switch to USB */
+		ret = max8997_update_reg(info->muic, MAX8997_MUIC_REG_CONTROL1,
+				attached ? MAX8997_SW_USB : MAX8997_SW_OPEN,
+				SW_MASK);
+		if (ret) {
+			dev_err(info->dev, "failed to update muic register\n");
+			goto out;
+		}
+	}
+
+	if (mdata->usb_callback)
+		mdata->usb_callback(usb_type, attached);
+out:
+	return ret;
+}
+
+static void max8997_muic_handle_mhl(struct max8997_muic_info *info,
+			bool attached)
+{
+	struct max8997_muic_platform_data *mdata = info->muic_pdata;
+
+	if (mdata->mhl_callback)
+		mdata->mhl_callback(attached);
+}
+
+static int max8997_muic_handle_dock(struct max8997_muic_info *info,
+			int adc, bool attached)
+{
+	struct max8997_muic_platform_data *mdata = info->muic_pdata;
+	int ret = 0;
+
+	/* switch to AUDIO */
+	ret = max8997_update_reg(info->muic, MAX8997_MUIC_REG_CONTROL1,
+				attached ? MAX8997_SW_AUDIO : MAX8997_SW_OPEN,
+				SW_MASK);
+	if (ret) {
+		dev_err(info->dev, "failed to update muic register\n");
+		goto out;
+	}
+
+	switch (adc) {
+	case MAX8997_ADC_DESKDOCK:
+		if (mdata->deskdock_callback)
+			mdata->deskdock_callback(attached);
+		break;
+	case MAX8997_ADC_CARDOCK:
+		if (mdata->cardock_callback)
+			mdata->cardock_callback(attached);
+		break;
+	default:
+		break;
+	}
+out:
+	return ret;
+}
+
+static int max8997_muic_handle_jig_uart(struct max8997_muic_info *info,
+			bool attached)
+{
+	struct max8997_muic_platform_data *mdata = info->muic_pdata;
+	int ret = 0;
+
+	/* switch to UART */
+	ret = max8997_update_reg(info->muic, MAX8997_MUIC_REG_CONTROL1,
+				attached ? MAX8997_SW_UART : MAX8997_SW_OPEN,
+				SW_MASK);
+	if (ret) {
+		dev_err(info->dev, "failed to update muic register\n");
+		goto out;
+	}
+
+	if (mdata->uart_callback)
+		mdata->uart_callback(attached);
+out:
+	return ret;
+}
+
+static int max8997_muic_handle_adc_detach(struct max8997_muic_info *info)
+{
+	int ret = 0;
+
+	switch (info->pre_adc) {
+	case MAX8997_ADC_GROUND:
+		ret = max8997_muic_handle_usb(info, MAX8997_USB_HOST, false);
+		break;
+	case MAX8997_ADC_MHL:
+		max8997_muic_handle_mhl(info, false);
+		break;
+	case MAX8997_ADC_JIG_USB_1:
+	case MAX8997_ADC_JIG_USB_2:
+		ret = max8997_muic_handle_usb(info, MAX8997_USB_DEVICE, false);
+		break;
+	case MAX8997_ADC_DESKDOCK:
+	case MAX8997_ADC_CARDOCK:
+		ret = max8997_muic_handle_dock(info, info->pre_adc, false);
+		break;
+	case MAX8997_ADC_JIG_UART:
+		ret = max8997_muic_handle_jig_uart(info, false);
+		break;
+	default:
+		break;
+	}
+
+	return ret;
+}
+
+static int max8997_muic_handle_adc(struct max8997_muic_info *info, int adc)
+{
+	int ret = 0;
+
+	switch (adc) {
+	case MAX8997_ADC_GROUND:
+		ret = max8997_muic_handle_usb(info, MAX8997_USB_HOST, true);
+		break;
+	case MAX8997_ADC_MHL:
+		max8997_muic_handle_mhl(info, true);
+		break;
+	case MAX8997_ADC_JIG_USB_1:
+	case MAX8997_ADC_JIG_USB_2:
+		ret = max8997_muic_handle_usb(info, MAX8997_USB_DEVICE, true);
+		break;
+	case MAX8997_ADC_DESKDOCK:
+	case MAX8997_ADC_CARDOCK:
+		ret = max8997_muic_handle_dock(info, adc, true);
+		break;
+	case MAX8997_ADC_JIG_UART:
+		ret = max8997_muic_handle_jig_uart(info, true);
+		break;
+	case MAX8997_ADC_OPEN:
+		ret = max8997_muic_handle_adc_detach(info);
+		break;
+	default:
+		break;
+	}
+
+	info->pre_adc = adc;
+
+	return ret;
+}
+
+static int max8997_muic_handle_charger_type(struct max8997_muic_info *info,
+				enum max8997_muic_charger_type charger_type)
+{
+	struct max8997_muic_platform_data *mdata = info->muic_pdata;
+	u8 adc;
+	int ret;
+
+	ret = max8997_read_reg(info->muic, MAX8997_MUIC_REG_STATUS1, &adc);
+	if (ret) {
+		dev_err(info->dev, "failed to read muic register\n");
+		goto out;
+	}
+
+	switch (charger_type) {
+	case MAX8997_CHARGER_TYPE_NONE:
+		if (mdata->charger_callback)
+			mdata->charger_callback(false, charger_type);
+		if (info->pre_charger_type == MAX8997_CHARGER_TYPE_USB) {
+			max8997_muic_handle_usb(info,
+					MAX8997_USB_DEVICE, false);
+		}
+		break;
+	case MAX8997_CHARGER_TYPE_USB:
+		if ((adc & STATUS1_ADC_MASK) == MAX8997_ADC_OPEN) {
+			max8997_muic_handle_usb(info,
+					MAX8997_USB_DEVICE, true);
+		}
+		if (mdata->charger_callback)
+			mdata->charger_callback(true, charger_type);
+		break;
+	case MAX8997_CHARGER_TYPE_DOWNSTREAM_PORT:
+	case MAX8997_CHARGER_TYPE_DEDICATED_CHG:
+	case MAX8997_CHARGER_TYPE_500MA:
+	case MAX8997_CHARGER_TYPE_1A:
+		if (mdata->charger_callback)
+			mdata->charger_callback(true, charger_type);
+		break;
+	default:
+		break;
+	}
+
+	info->pre_charger_type = charger_type;
+out:
+	return ret;
+}
+
+static void max8997_muic_irq_work(struct work_struct *work)
+{
+	struct max8997_muic_info *info = container_of(work,
+			struct max8997_muic_info, irq_work);
+	struct max8997_platform_data *pdata =
+				dev_get_platdata(info->iodev->dev);
+	u8 status[3];
+	u8 adc, chg_type;
+
+	int irq_type = info->irq - pdata->irq_base;
+	int ret;
+
+	mutex_lock(&info->mutex);
+
+	ret = max8997_bulk_read(info->muic, MAX8997_MUIC_REG_STATUS1,
+				3, status);
+	if (ret) {
+		dev_err(info->dev, "failed to read muic register\n");
+		mutex_unlock(&info->mutex);
+		return;
+	}
+
+	dev_dbg(info->dev, "%s: STATUS1:0x%x, 2:0x%x\n", __func__,
+			status[0], status[1]);
+
+	switch (irq_type) {
+	case MAX8997_MUICIRQ_ADC:
+		adc = status[0] & STATUS1_ADC_MASK;
+		adc >>= STATUS1_ADC_SHIFT;
+
+		max8997_muic_handle_adc(info, adc);
+		break;
+	case MAX8997_MUICIRQ_ChgTyp:
+		chg_type = status[1] & STATUS2_CHGTYP_MASK;
+		chg_type >>= STATUS2_CHGTYP_SHIFT;
+
+		max8997_muic_handle_charger_type(info, chg_type);
+		break;
+	default:
+		dev_info(info->dev, "misc interrupt: %s occurred\n",
+			 muic_irqs[irq_type].name);
+		break;
+	}
+
+	mutex_unlock(&info->mutex);
+
+	return;
+}
+
+static irqreturn_t max8997_muic_irq_handler(int irq, void *data)
+{
+	struct max8997_muic_info *info = data;
+
+	dev_dbg(info->dev, "irq:%d\n", irq);
+	info->irq = irq;
+
+	schedule_work(&info->irq_work);
+
+	return IRQ_HANDLED;
+}
+
+static void max8997_muic_detect_dev(struct max8997_muic_info *info)
+{
+	int ret;
+	u8 status[2], adc, chg_type;
+
+	ret = max8997_bulk_read(info->muic, MAX8997_MUIC_REG_STATUS1,
+				2, status);
+	if (ret) {
+		dev_err(info->dev, "failed to read muic register\n");
+		return;
+	}
+
+	dev_info(info->dev, "STATUS1:0x%x, STATUS2:0x%x\n",
+			status[0], status[1]);
+
+	adc = status[0] & STATUS1_ADC_MASK;
+	adc >>= STATUS1_ADC_SHIFT;
+
+	chg_type = status[1] & STATUS2_CHGTYP_MASK;
+	chg_type >>= STATUS2_CHGTYP_SHIFT;
+
+	max8997_muic_handle_adc(info, adc);
+	max8997_muic_handle_charger_type(info, chg_type);
+}
+
+static void max8997_initialize_device(struct max8997_muic_info *info)
+{
+	struct max8997_muic_platform_data *mdata = info->muic_pdata;
+	int i;
+
+	for (i = 0; i < mdata->num_init_data; i++) {
+		max8997_write_reg(info->muic, mdata->init_data[i].addr,
+				mdata->init_data[i].data);
+	}
+}
+
+static int __devinit max8997_muic_probe(struct platform_device *pdev)
+{
+	struct max8997_dev *iodev = dev_get_drvdata(pdev->dev.parent);
+	struct max8997_platform_data *pdata = dev_get_platdata(iodev->dev);
+	struct max8997_muic_info *info;
+	int ret, i;
+
+	info = kzalloc(sizeof(struct max8997_muic_info), GFP_KERNEL);
+	if (!info) {
+		dev_err(&pdev->dev, "failed to allocate memory\n");
+		ret = -ENOMEM;
+		goto err_kfree;
+	}
+
+	if (!pdata->muic_pdata) {
+		dev_err(&pdev->dev, "failed to get platform_data\n");
+		ret = -EINVAL;
+		goto err_pdata;
+	}
+	info->muic_pdata = pdata->muic_pdata;
+
+	info->dev = &pdev->dev;
+	info->iodev = iodev;
+	info->muic = iodev->muic;
+
+	platform_set_drvdata(pdev, info);
+	mutex_init(&info->mutex);
+
+	INIT_WORK(&info->irq_work, max8997_muic_irq_work);
+
+	for (i = 0; i < ARRAY_SIZE(muic_irqs); i++) {
+		struct max8997_muic_irq *muic_irq = &muic_irqs[i];
+
+		ret = request_threaded_irq(pdata->irq_base + muic_irq->irq,
+				NULL, max8997_muic_irq_handler,
+				0, muic_irq->name,
+				info);
+		if (ret) {
+			dev_err(&pdev->dev,
+				"failed: irq request (IRQ: %d,"
+				" error :%d)\n",
+				muic_irq->irq, ret);
+
+			for (i = i - 1; i >= 0; i--)
+				free_irq(muic_irq->irq, info);
+
+			goto err_irq;
+		}
+	}
+
+	/* Initialize registers according to platform data */
+	max8997_initialize_device(info);
+
+	/* Initial device detection */
+	max8997_muic_detect_dev(info);
+
+	return ret;
+
+err_irq:
+err_pdata:
+	kfree(info);
+err_kfree:
+	return ret;
+}
+
+static int __devexit max8997_muic_remove(struct platform_device *pdev)
+{
+	struct max8997_muic_info *info = platform_get_drvdata(pdev);
+	struct max8997_platform_data *pdata =
+				dev_get_platdata(info->iodev->dev);
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(muic_irqs); i++)
+		free_irq(pdata->irq_base + muic_irqs[i].irq, info);
+	cancel_work_sync(&info->irq_work);
+
+	kfree(info);
+
+	return 0;
+}
+
+static struct platform_driver max8997_muic_driver = {
+	.driver		= {
+		.name	= "max8997-muic",
+		.owner	= THIS_MODULE,
+	},
+	.probe		= max8997_muic_probe,
+	.remove		= __devexit_p(max8997_muic_remove),
+};
+
+static int __init max8997_muic_init(void)
+{
+	return platform_driver_register(&max8997_muic_driver);
+}
+module_init(max8997_muic_init);
+
+static void __exit max8997_muic_exit(void)
+{
+	platform_driver_unregister(&max8997_muic_driver);
+}
+module_exit(max8997_muic_exit);
+
+MODULE_DESCRIPTION("Maxim MAX8997 MUIC driver");
+MODULE_AUTHOR("Donggeun Kim <dg77.kim@samsung.com>");
+MODULE_LICENSE("GPL");

drivers/regulator/ab8500.c

@@ -16,8 +16,8 @@
 #include <linux/module.h>
 #include <linux/err.h>
 #include <linux/platform_device.h>
-#include <linux/mfd/ab8500.h>
 #include <linux/mfd/abx500.h>
+#include <linux/mfd/abx500/ab8500.h>
 #include <linux/regulator/driver.h>
 #include <linux/regulator/machine.h>
 #include <linux/regulator/ab8500.h>

drivers/rtc/rtc-ab8500.c

@@ -15,7 +15,7 @@
 #include <linux/platform_device.h>
 #include <linux/rtc.h>
 #include <linux/mfd/abx500.h>
-#include <linux/mfd/ab8500.h>
+#include <linux/mfd/abx500/ab8500.h>
 #include <linux/delay.h>
 
 #define AB8500_RTC_SOFF_STAT_REG	0x00

drivers/rtc/rtc-max8925.c

@@ -261,6 +261,8 @@ static int __devinit max8925_rtc_probe(struct platform_device *pdev)
 	/* XXX - isn't this redundant? */
 	platform_set_drvdata(pdev, info);
 
+	device_init_wakeup(&pdev->dev, 1);
+
 	info->rtc_dev = rtc_device_register("max8925-rtc", &pdev->dev,
 					&max8925_rtc_ops, THIS_MODULE);
 	ret = PTR_ERR(info->rtc_dev);
@@ -290,10 +292,34 @@ static int __devexit max8925_rtc_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int max8925_rtc_suspend(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent);
+
+	if (device_may_wakeup(dev))
+		chip->wakeup_flag |= 1 << MAX8925_IRQ_RTC_ALARM0;
+	return 0;
+}
+static int max8925_rtc_resume(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent);
+
+	if (device_may_wakeup(dev))
+		chip->wakeup_flag &= ~(1 << MAX8925_IRQ_RTC_ALARM0);
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(max8925_rtc_pm_ops, max8925_rtc_suspend, max8925_rtc_resume);
+
 static struct platform_driver max8925_rtc_driver = {
 	.driver		= {
 		.name	= "max8925-rtc",
 		.owner	= THIS_MODULE,
+		.pm     = &max8925_rtc_pm_ops,
 	},
 	.probe		= max8925_rtc_probe,
 	.remove		= __devexit_p(max8925_rtc_remove),

drivers/usb/otg/ab8500-usb.c

@@ -30,7 +30,7 @@
 #include <linux/interrupt.h>
 #include <linux/delay.h>
 #include <linux/mfd/abx500.h>
-#include <linux/mfd/ab8500.h>
+#include <linux/mfd/abx500/ab8500.h>
 
 #define AB8500_MAIN_WD_CTRL_REG 0x01
 #define AB8500_USB_LINE_STAT_REG 0x80

include/linux/i2c/twl.h

@@ -652,10 +652,12 @@ struct twl4030_power_data {
 	unsigned num;
 	struct twl4030_resconfig *resource_config;
 #define TWL4030_RESCONFIG_UNDEF	((u8)-1)
+	bool use_poweroff;	/* Board is wired for TWL poweroff */
 };
 
 extern void twl4030_power_init(struct twl4030_power_data *triton2_scripts);
 extern int twl4030_remove_script(u8 flags);
+extern void twl4030_power_off(void);
 
 struct twl4030_codec_data {
 	unsigned int digimic_delay; /* in ms */

include/linux/mfd/88pm860x.h

@@ -297,10 +297,11 @@ enum {
 
 struct pm860x_chip {
 	struct device		*dev;
-	struct mutex		io_lock;
 	struct mutex		irq_lock;
 	struct i2c_client	*client;
 	struct i2c_client	*companion;	/* companion chip client */
+	struct regmap           *regmap;
+	struct regmap           *regmap_companion;
 
 	int			buck3_double;	/* DVC ramp slope double */
 	unsigned short		companion_addr;

include/linux/mfd/max8925.h

@@ -203,6 +203,8 @@ struct max8925_chip {
 	int			irq_base;
 	int			core_irq;
 	int			tsc_irq;
+
+	unsigned int            wakeup_flag;
 };
 
 struct max8925_backlight_pdata {

include/linux/mfd/max8997.h

@@ -77,6 +77,82 @@ struct max8997_regulator_data {
 	struct regulator_init_data *initdata;
 };
 
+enum max8997_muic_usb_type {
+	MAX8997_USB_HOST,
+	MAX8997_USB_DEVICE,
+};
+
+enum max8997_muic_charger_type {
+	MAX8997_CHARGER_TYPE_NONE = 0,
+	MAX8997_CHARGER_TYPE_USB,
+	MAX8997_CHARGER_TYPE_DOWNSTREAM_PORT,
+	MAX8997_CHARGER_TYPE_DEDICATED_CHG,
+	MAX8997_CHARGER_TYPE_500MA,
+	MAX8997_CHARGER_TYPE_1A,
+	MAX8997_CHARGER_TYPE_DEAD_BATTERY = 7,
+};
+
+struct max8997_muic_reg_data {
+	u8 addr;
+	u8 data;
+};
+
+/**
+ * struct max8997_muic_platform_data
+ * @usb_callback: callback function for USB
+ *		  inform callee of USB type (HOST or DEVICE)
+ *		  and attached state(true or false)
+ * @charger_callback: callback function for charger
+ *		  inform callee of charger_type
+ *		  and attached state(true or false)
+ * @deskdock_callback: callback function for desk dock
+ *		  inform callee of attached state(true or false)
+ * @cardock_callback: callback function for car dock
+ *		  inform callee of attached state(true or false)
+ * @mhl_callback: callback function for MHL (Mobile High-definition Link)
+ *		  inform callee of attached state(true or false)
+ * @uart_callback: callback function for JIG UART
+ *		   inform callee of attached state(true or false)
+ * @init_data: array of max8997_muic_reg_data
+ *	       used for initializing registers of MAX8997 MUIC device
+ * @num_init_data: array size of init_data
+ */
+struct max8997_muic_platform_data {
+	void (*usb_callback)(enum max8997_muic_usb_type usb_type,
+		bool attached);
+	void (*charger_callback)(bool attached,
+		enum max8997_muic_charger_type charger_type);
+	void (*deskdock_callback) (bool attached);
+	void (*cardock_callback) (bool attached);
+	void (*mhl_callback) (bool attached);
+	void (*uart_callback) (bool attached);
+
+	struct max8997_muic_reg_data *init_data;
+	int num_init_data;
+};
+
+enum max8997_led_mode {
+	MAX8997_NONE,
+	MAX8997_FLASH_MODE,
+	MAX8997_MOVIE_MODE,
+	MAX8997_FLASH_PIN_CONTROL_MODE,
+	MAX8997_MOVIE_PIN_CONTROL_MODE,
+};
+
+/**
+ *  struct max8997_led_platform_data
+ *  The number of LED devices for MAX8997 is two
+ *  @mode: LED mode for each LED device
+ *  @brightness: initial brightness for each LED device
+ *	range:
+ *	[0 - 31]: MAX8997_FLASH_MODE and MAX8997_FLASH_PIN_CONTROL_MODE
+ *	[0 - 15]: MAX8997_MOVIE_MODE and MAX8997_MOVIE_PIN_CONTROL_MODE
+ */
+struct max8997_led_platform_data {
+	enum max8997_led_mode mode[2];
+	u8 brightness[2];
+};
+
 struct max8997_platform_data {
 	/* IRQ */
 	int irq_base;
@@ -113,10 +189,13 @@ struct max8997_platform_data {
 	/* charge Full Timeout */
 	int timeout; /* 0 (no timeout), 5, 6, 7 hours */
 
-	/* MUIC: Not implemented */
+	/* ---- MUIC ---- */
+	struct max8997_muic_platform_data *muic_pdata;
+
 	/* HAPTIC: Not implemented */
 	/* RTC: Not implemented */
-	/* Flash: Not implemented */
+	/* ---- LED ---- */
+	struct max8997_led_platform_data *led_pdata;
 };
 
 #endif /* __LINUX_MFD_MAX8998_H */

include/linux/mfd/mc13xxx.h

@@ -174,6 +174,9 @@ struct mc13xxx_platform_data {
 #define MC13XXX_ADC_MODE_MULT_CHAN	3
 
 #define MC13XXX_ADC0		43
+#define MC13XXX_ADC0_LICELLCON		(1 << 0)
+#define MC13XXX_ADC0_CHRGICON		(1 << 1)
+#define MC13XXX_ADC0_BATICON		(1 << 2)
 #define MC13XXX_ADC0_ADREFEN		(1 << 10)
 #define MC13XXX_ADC0_TSMOD0		(1 << 12)
 #define MC13XXX_ADC0_TSMOD1		(1 << 13)
@@ -185,4 +188,9 @@ struct mc13xxx_platform_data {
 					MC13XXX_ADC0_TSMOD1 | \
 					MC13XXX_ADC0_TSMOD2)
 
+#define MC13XXX_ADC0_CONFIG_MASK	(MC13XXX_ADC0_TSMOD_MASK | \
+					MC13XXX_ADC0_LICELLCON | \
+					MC13XXX_ADC0_CHRGICON | \
+					MC13XXX_ADC0_BATICON)
+
 #endif /* ifndef __LINUX_MFD_MC13XXX_H */

include/linux/mfd/mcp.h

@@ -10,6 +10,7 @@
 #ifndef MCP_H
 #define MCP_H
 
+#include <linux/mod_devicetable.h>
 #include <mach/dma.h>
 
 struct mcp_ops;
@@ -26,7 +27,7 @@ struct mcp {
 	dma_device_t	dma_telco_rd;
 	dma_device_t	dma_telco_wr;
 	struct device	attached_device;
-	int		gpio_base;
+	const char	*codec;
 };
 
 struct mcp_ops {
@@ -44,10 +45,11 @@ void mcp_reg_write(struct mcp *, unsigned int, unsigned int);
 unsigned int mcp_reg_read(struct mcp *, unsigned int);
 void mcp_enable(struct mcp *);
 void mcp_disable(struct mcp *);
+const struct mcp_device_id *mcp_get_device_id(const struct mcp *mcp);
 #define mcp_get_sclk_rate(mcp)	((mcp)->sclk_rate)
 
 struct mcp *mcp_host_alloc(struct device *, size_t);
-int mcp_host_register(struct mcp *);
+int mcp_host_register(struct mcp *, void *);
 void mcp_host_unregister(struct mcp *);
 
 struct mcp_driver {
@@ -56,6 +58,7 @@ struct mcp_driver {
 	void (*remove)(struct mcp *);
 	int (*suspend)(struct mcp *, pm_message_t);
 	int (*resume)(struct mcp *);
+	const struct mcp_device_id *id_table;
 };
 
 int mcp_driver_register(struct mcp_driver *);