Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

Pull second round of input updates from Dmitry Torokhov:
 "A new driver for Weida wdt87xx touch controllers, and a bunch of
  fixups for other drivers"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: wdt87xx_i2c - add a scaling factor for TOUCH_MAJOR event
  Input: wdt87xx_i2c - remove stray newline in diagnostic message
  Input: arc_ps2 - add HAS_IOMEM dependency
  Input: wdt87xx_i2c - fix format warning
  Input: improve parsing OF parameters for touchscreens
  Input: edt-ft5x06 - mark as direct input device
  Input: use for_each_set_bit() where appropriate
  Input: add a driver for wdt87xx touchscreen controller
  Input: axp20x-pek - fix reporting button state as inverted
  Input: xpad - re-send LED command on present event
  Input: xpad - set the LEDs properly on XBox Wireless controllers
  Input: imx_keypad - check for clk_prepare_enable() error

drivers/input/input.c

@@ -677,12 +677,9 @@ static void input_dev_release_keys(struct input_dev *dev)
 	int code;
 
 	if (is_event_supported(EV_KEY, dev->evbit, EV_MAX)) {
-		for (code = 0; code <= KEY_MAX; code++) {
-			if (is_event_supported(code, dev->keybit, KEY_MAX) &&
-			    __test_and_clear_bit(code, dev->key)) {
+		for_each_set_bit(code, dev->key, KEY_CNT)
 			input_pass_event(dev, EV_KEY, code, 0);
-			}
-		}
+		memset(dev->key, 0, sizeof(dev->key));
 		input_pass_event(dev, EV_SYN, SYN_REPORT, 1);
 	}
 }
@@ -1626,10 +1623,7 @@ static int input_dev_uevent(struct device *device, struct kobj_uevent_env *env)
 		if (!test_bit(EV_##type, dev->evbit))			\
 			break;						\
 									\
-		for (i = 0; i < type##_MAX; i++) {			\
-			if (!test_bit(i, dev->bits##bit))		\
-				continue;				\
-									\
+		for_each_set_bit(i, dev->bits##bit, type##_CNT) {	\
 			active = test_bit(i, dev->bits);		\
 			if (!active && !on)				\
 				continue;				\
@@ -1980,22 +1974,12 @@ static unsigned int input_estimate_events_per_packet(struct input_dev *dev)
 
 	events = mt_slots + 1; /* count SYN_MT_REPORT and SYN_REPORT */
 
-	if (test_bit(EV_ABS, dev->evbit)) {
-		for (i = 0; i < ABS_CNT; i++) {
-			if (test_bit(i, dev->absbit)) {
-				if (input_is_mt_axis(i))
-					events += mt_slots;
-				else
-					events++;
-			}
-		}
-	}
+	if (test_bit(EV_ABS, dev->evbit))
+		for_each_set_bit(i, dev->absbit, ABS_CNT)
+			events += input_is_mt_axis(i) ? mt_slots : 1;
 
-	if (test_bit(EV_REL, dev->evbit)) {
-		for (i = 0; i < REL_CNT; i++)
-			if (test_bit(i, dev->relbit))
-				events++;
-	}
+	if (test_bit(EV_REL, dev->evbit))
+		events += bitmap_weight(dev->relbit, REL_CNT);
 
 	/* Make room for KEY and MSC events */
 	events += 7;

drivers/input/joystick/xpad.c

@@ -344,6 +344,7 @@ struct usb_xpad {
 
 	int mapping;			/* map d-pad to buttons or to axes */
 	int xtype;			/* type of xbox device */
+	unsigned long led_no;		/* led to lit on xbox360 controllers */
 };
 
 /*
@@ -488,6 +489,8 @@ static void xpad360_process_packet(struct usb_xpad *xpad,
 	input_sync(dev);
 }
 
+static void xpad_identify_controller(struct usb_xpad *xpad);
+
 /*
  * xpad360w_process_packet
  *
@@ -510,6 +513,11 @@ static void xpad360w_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned cha
 		if (data[1] & 0x80) {
 			xpad->pad_present = 1;
 			usb_submit_urb(xpad->bulk_out, GFP_ATOMIC);
+			/*
+			 * Light up the segment corresponding to
+			 * controller number.
+			 */
+			xpad_identify_controller(xpad);
 		} else
 			xpad->pad_present = 0;
 	}
@@ -881,17 +889,63 @@ struct xpad_led {
 	struct usb_xpad *xpad;
 };
 
+/**
+ * @param command
+ *  0: off
+ *  1: all blink, then previous setting
+ *  2: 1/top-left blink, then on
+ *  3: 2/top-right blink, then on
+ *  4: 3/bottom-left blink, then on
+ *  5: 4/bottom-right blink, then on
+ *  6: 1/top-left on
+ *  7: 2/top-right on
+ *  8: 3/bottom-left on
+ *  9: 4/bottom-right on
+ * 10: rotate
+ * 11: blink, based on previous setting
+ * 12: slow blink, based on previous setting
+ * 13: rotate with two lights
+ * 14: persistent slow all blink
+ * 15: blink once, then previous setting
+ */
 static void xpad_send_led_command(struct usb_xpad *xpad, int command)
 {
-	if (command >= 0 && command < 14) {
+	command %= 16;
+
 	mutex_lock(&xpad->odata_mutex);
+
+	switch (xpad->xtype) {
+	case XTYPE_XBOX360:
 		xpad->odata[0] = 0x01;
 		xpad->odata[1] = 0x03;
 		xpad->odata[2] = command;
 		xpad->irq_out->transfer_buffer_length = 3;
+		break;
+	case XTYPE_XBOX360W:
+		xpad->odata[0] = 0x00;
+		xpad->odata[1] = 0x00;
+		xpad->odata[2] = 0x08;
+		xpad->odata[3] = 0x40 + command;
+		xpad->odata[4] = 0x00;
+		xpad->odata[5] = 0x00;
+		xpad->odata[6] = 0x00;
+		xpad->odata[7] = 0x00;
+		xpad->odata[8] = 0x00;
+		xpad->odata[9] = 0x00;
+		xpad->odata[10] = 0x00;
+		xpad->odata[11] = 0x00;
+		xpad->irq_out->transfer_buffer_length = 12;
+		break;
+	}
+
 	usb_submit_urb(xpad->irq_out, GFP_KERNEL);
 	mutex_unlock(&xpad->odata_mutex);
-	}
+}
+
+static void xpad_identify_controller(struct usb_xpad *xpad)
+{
+	/* Light up the segment corresponding to controller number */
+	xpad_send_led_command(xpad, (xpad->led_no % 4) + 2);
 }
 
 static void xpad_led_set(struct led_classdev *led_cdev,
@@ -906,21 +960,20 @@ static void xpad_led_set(struct led_classdev *led_cdev,
 static int xpad_led_probe(struct usb_xpad *xpad)
 {
 	static atomic_t led_seq = ATOMIC_INIT(-1);
-	unsigned long led_no;
 	struct xpad_led *led;
 	struct led_classdev *led_cdev;
 	int error;
 
-	if (xpad->xtype != XTYPE_XBOX360)
+	if (xpad->xtype != XTYPE_XBOX360 && xpad->xtype != XTYPE_XBOX360W)
 		return 0;
 
 	xpad->led = led = kzalloc(sizeof(struct xpad_led), GFP_KERNEL);
 	if (!led)
 		return -ENOMEM;
 
-	led_no = atomic_inc_return(&led_seq);
+	xpad->led_no = atomic_inc_return(&led_seq);
 
-	snprintf(led->name, sizeof(led->name), "xpad%lu", led_no);
+	snprintf(led->name, sizeof(led->name), "xpad%lu", xpad->led_no);
 	led->xpad = xpad;
 
 	led_cdev = &led->led_cdev;
@@ -934,10 +987,8 @@ static int xpad_led_probe(struct usb_xpad *xpad)
 		return error;
 	}
 
-	/*
-	 * Light up the segment corresponding to controller number
-	 */
-	xpad_send_led_command(xpad, (led_no % 4) + 2);
+	/* Light up the segment corresponding to controller number */
+	xpad_identify_controller(xpad);
 
 	return 0;
 }
@@ -954,6 +1005,7 @@ static void xpad_led_disconnect(struct usb_xpad *xpad)
 #else
 static int xpad_led_probe(struct usb_xpad *xpad) { return 0; }
 static void xpad_led_disconnect(struct usb_xpad *xpad) { }
+static void xpad_identify_controller(struct usb_xpad *xpad) { }
 #endif
 
 

drivers/input/keyboard/imx_keypad.c

@@ -506,7 +506,9 @@ static int imx_keypad_probe(struct platform_device *pdev)
 	input_set_drvdata(input_dev, keypad);
 
 	/* Ensure that the keypad will stay dormant until opened */
-	clk_prepare_enable(keypad->clk);
+	error = clk_prepare_enable(keypad->clk);
+	if (error)
+		return error;
 	imx_keypad_inhibit(keypad);
 	clk_disable_unprepare(keypad->clk);
 

drivers/input/misc/axp20x-pek.c

@@ -167,9 +167,13 @@ static irqreturn_t axp20x_pek_irq(int irq, void *pwr)
 	struct input_dev *idev = pwr;
 	struct axp20x_pek *axp20x_pek = input_get_drvdata(idev);
 
-	if (irq == axp20x_pek->irq_dbr)
+	/*
+	 * The power-button is connected to ground so a falling edge (dbf)
+	 * means it is pressed.
+	 */
+	if (irq == axp20x_pek->irq_dbf)
 		input_report_key(idev, KEY_POWER, true);
-	else if (irq == axp20x_pek->irq_dbf)
+	else if (irq == axp20x_pek->irq_dbr)
 		input_report_key(idev, KEY_POWER, false);
 
 	input_sync(idev);

drivers/input/serio/Kconfig

@@ -244,6 +244,7 @@ config SERIO_PS2MULT
 
 config SERIO_ARC_PS2
 	tristate "ARC PS/2 support"
+	depends on HAS_IOMEM
 	help
 	  Say Y here if you have an ARC FPGA platform with a PS/2
 	  controller in it.

drivers/input/touchscreen/Kconfig

@@ -658,6 +658,18 @@ config TOUCHSCREEN_PIXCIR
 	  To compile this driver as a module, choose M here: the
 	  module will be called pixcir_i2c_ts.
 
+config TOUCHSCREEN_WDT87XX_I2C
+	tristate "Weida HiTech I2C touchscreen"
+	depends on I2C
+	help
+	  Say Y here if you have a Weida WDT87XX I2C touchscreen
+	  connected to your system.
+
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called wdt87xx_i2c.
+
 config TOUCHSCREEN_WM831X
 	tristate "Support for WM831x touchscreen controllers"
 	depends on MFD_WM831X

drivers/input/touchscreen/Makefile

@@ -72,6 +72,7 @@ obj-$(CONFIG_TOUCHSCREEN_TSC2007)	+= tsc2007.o
 obj-$(CONFIG_TOUCHSCREEN_UCB1400)	+= ucb1400_ts.o
 obj-$(CONFIG_TOUCHSCREEN_WACOM_W8001)	+= wacom_w8001.o
 obj-$(CONFIG_TOUCHSCREEN_WACOM_I2C)	+= wacom_i2c.o
+obj-$(CONFIG_TOUCHSCREEN_WDT87XX_I2C)	+= wdt87xx_i2c.o
 obj-$(CONFIG_TOUCHSCREEN_WM831X)	+= wm831x-ts.o
 obj-$(CONFIG_TOUCHSCREEN_WM97XX)	+= wm97xx-ts.o
 wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9705)	+= wm9705.o

drivers/input/touchscreen/edt-ft5x06.c

@@ -1035,20 +1035,15 @@ static int edt_ft5x06_ts_probe(struct i2c_client *client,
 	input->id.bustype = BUS_I2C;
 	input->dev.parent = &client->dev;
 
-	__set_bit(EV_KEY, input->evbit);
-	__set_bit(EV_ABS, input->evbit);
-	__set_bit(BTN_TOUCH, input->keybit);
-	input_set_abs_params(input, ABS_X, 0, tsdata->num_x * 64 - 1, 0, 0);
-	input_set_abs_params(input, ABS_Y, 0, tsdata->num_y * 64 - 1, 0, 0);
 	input_set_abs_params(input, ABS_MT_POSITION_X,
 			     0, tsdata->num_x * 64 - 1, 0, 0);
 	input_set_abs_params(input, ABS_MT_POSITION_Y,
 			     0, tsdata->num_y * 64 - 1, 0, 0);
 
 	if (!pdata)
-		touchscreen_parse_of_params(input);
+		touchscreen_parse_of_params(input, true);
 
-	error = input_mt_init_slots(input, MAX_SUPPORT_POINTS, 0);
+	error = input_mt_init_slots(input, MAX_SUPPORT_POINTS, INPUT_MT_DIRECT);
 	if (error) {
 		dev_err(&client->dev, "Unable to init MT slots.\n");
 		return error;

drivers/input/touchscreen/of_touchscreen.c

@@ -14,14 +14,22 @@
 #include <linux/input/mt.h>
 #include <linux/input/touchscreen.h>
 
-static u32 of_get_optional_u32(struct device_node *np,
-			       const char *property)
+static bool touchscreen_get_prop_u32(struct device_node *np,
+				     const char *property,
+				     unsigned int default_value,
+				     unsigned int *value)
 {
-	u32 val = 0;
+	u32 val;
+	int error;
 
-	of_property_read_u32(np, property, &val);
+	error = of_property_read_u32(np, property, &val);
+	if (error) {
+		*value = default_value;
+		return false;
+	}
 
-	return val;
+	*value = val;
+	return true;
 }
 
 static void touchscreen_set_params(struct input_dev *dev,
@@ -54,34 +62,45 @@ static void touchscreen_set_params(struct input_dev *dev,
  * input device accordingly. The function keeps previously setuped default
  * values if no value is specified via DT.
  */
-void touchscreen_parse_of_params(struct input_dev *dev)
+void touchscreen_parse_of_params(struct input_dev *dev, bool multitouch)
 {
 	struct device_node *np = dev->dev.parent->of_node;
-	u32 maximum, fuzz;
+	unsigned int axis;
+	unsigned int maximum, fuzz;
+	bool data_present;
 
 	input_alloc_absinfo(dev);
 	if (!dev->absinfo)
 		return;
 
-	maximum = of_get_optional_u32(np, "touchscreen-size-x");
-	fuzz = of_get_optional_u32(np, "touchscreen-fuzz-x");
-	if (maximum || fuzz) {
-		touchscreen_set_params(dev, ABS_X, maximum, fuzz);
-		touchscreen_set_params(dev, ABS_MT_POSITION_X, maximum, fuzz);
-	}
+	axis = multitouch ? ABS_MT_POSITION_X : ABS_X;
+	data_present = touchscreen_get_prop_u32(np, "touchscreen-size-x",
+						input_abs_get_max(dev, axis),
+						&maximum) |
+		       touchscreen_get_prop_u32(np, "touchscreen-fuzz-x",
+						input_abs_get_fuzz(dev, axis),
+						&fuzz);
+	if (data_present)
+		touchscreen_set_params(dev, axis, maximum, fuzz);
 
-	maximum = of_get_optional_u32(np, "touchscreen-size-y");
-	fuzz = of_get_optional_u32(np, "touchscreen-fuzz-y");
-	if (maximum || fuzz) {
-		touchscreen_set_params(dev, ABS_Y, maximum, fuzz);
-		touchscreen_set_params(dev, ABS_MT_POSITION_Y, maximum, fuzz);
-	}
+	axis = multitouch ? ABS_MT_POSITION_Y : ABS_Y;
+	data_present = touchscreen_get_prop_u32(np, "touchscreen-size-y",
+						input_abs_get_max(dev, axis),
+						&maximum) |
+		       touchscreen_get_prop_u32(np, "touchscreen-fuzz-y",
+						input_abs_get_fuzz(dev, axis),
+						&fuzz);
+	if (data_present)
+		touchscreen_set_params(dev, axis, maximum, fuzz);
 
-	maximum = of_get_optional_u32(np, "touchscreen-max-pressure");
-	fuzz = of_get_optional_u32(np, "touchscreen-fuzz-pressure");
-	if (maximum || fuzz) {
-		touchscreen_set_params(dev, ABS_PRESSURE, maximum, fuzz);
-		touchscreen_set_params(dev, ABS_MT_PRESSURE, maximum, fuzz);
-	}
+	axis = multitouch ? ABS_MT_PRESSURE : ABS_PRESSURE;
+	data_present = touchscreen_get_prop_u32(np, "touchscreen-max-pressure",
+						input_abs_get_max(dev, axis),
+						&maximum) |
+		       touchscreen_get_prop_u32(np, "touchscreen-fuzz-pressure",
+						input_abs_get_fuzz(dev, axis),
+						&fuzz);
+	if (data_present)
+		touchscreen_set_params(dev, axis, maximum, fuzz);
 }
 EXPORT_SYMBOL(touchscreen_parse_of_params);

drivers/input/touchscreen/tsc2005.c

@@ -709,7 +709,7 @@ static int tsc2005_probe(struct spi_device *spi)
 	input_set_abs_params(input_dev, ABS_PRESSURE, 0, max_p, fudge_p, 0);
 
 	if (np)
-		touchscreen_parse_of_params(input_dev);
+		touchscreen_parse_of_params(input_dev, false);
 
 	input_dev->open = tsc2005_open;
 	input_dev->close = tsc2005_close;

include/linux/input/touchscreen.h

@@ -12,9 +12,10 @@
 #include <linux/input.h>
 
 #ifdef CONFIG_OF
-void touchscreen_parse_of_params(struct input_dev *dev);
+void touchscreen_parse_of_params(struct input_dev *dev, bool multitouch);
 #else
-static inline void touchscreen_parse_of_params(struct input_dev *dev)
+static inline void touchscreen_parse_of_params(struct input_dev *dev,
+					       bool multitouch)
 {
 }
 #endif