Merge remote-tracking branch 'asoc/topic/omap' into for-3.7

Documentation/devicetree/bindings/sound/omap-twl4030.txt

+* Texas Instruments SoC with twl4030 based audio setups
+
+Required properties:
+- compatible: "ti,omap-twl4030"
+- ti,model: Name of the sound card (for example "omap3beagle")
+- ti,mcbsp: phandle for the McBSP node
+- ti,codec: phandle for the twl4030 audio node
+
+Example:
+
+sound {
+	compatible = "ti,omap-twl4030";
+	ti,model = "omap3beagle";
+
+	ti,mcbsp = <&mcbsp2>;
+	ti,codec = <&twl_audio>;
+};

arch/arm/mach-omap2/board-cm-t35.c

@@ -731,6 +731,7 @@ static void __init cm_t3x_common_init(void)
 	cm_t35_init_ethernet();
 	cm_t35_init_led();
 	cm_t35_init_display();
+	omap_twl4030_audio_init("cm-t3x");
 
 	usb_musb_init(NULL);
 	cm_t35_init_usbh();

arch/arm/mach-omap2/board-devkit8000.c

@@ -630,6 +630,7 @@ static void __init devkit8000_init(void)
 	usbhs_init(&usbhs_bdata);
 	omap_nand_flash_init(NAND_BUSWIDTH_16, devkit8000_nand_partitions,
 			     ARRAY_SIZE(devkit8000_nand_partitions));
+	omap_twl4030_audio_init("omap3beagle");
 
 	/* Ensure SDRC pins are mux'd for self-refresh */
 	omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);

arch/arm/mach-omap2/board-igep0020.c

@@ -626,6 +626,7 @@ static void __init igep_init(void)
 
 	igep_flash_init();
 	igep_leds_init();
+	omap_twl4030_audio_init("igep2");
 
 	/*
 	 * WLAN-BT combo module from MuRata which has a Marvell WLAN

arch/arm/mach-omap2/board-omap3beagle.c

@@ -519,6 +519,7 @@ static void __init omap3_beagle_init(void)
 	usbhs_init(&usbhs_bdata);
 	omap_nand_flash_init(NAND_BUSWIDTH_16, omap3beagle_nand_partitions,
 			     ARRAY_SIZE(omap3beagle_nand_partitions));
+	omap_twl4030_audio_init("omap3beagle");
 
 	/* Ensure msecure is mux'd to be able to set the RTC. */
 	omap_mux_init_signal("sys_drm_msecure", OMAP_PIN_OFF_OUTPUT_HIGH);

arch/arm/mach-omap2/board-omap3evm.c

@@ -736,6 +736,7 @@ static void __init omap3_evm_init(void)
 	omap3evm_init_smsc911x();
 	omap3_evm_display_init();
 	omap3_evm_wl12xx_init();
+	omap_twl4030_audio_init("omap3evm");
 }
 
 MACHINE_START(OMAP3EVM, "OMAP3 EVM")

arch/arm/mach-omap2/board-overo.c

@@ -509,6 +509,7 @@ static void __init overo_init(void)
 	overo_display_init();
 	overo_init_led();
 	overo_init_keys();
+	omap_twl4030_audio_init("overo");
 
 	/* Ensure SDRC pins are mux'd for self-refresh */
 	omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);

arch/arm/mach-omap2/twl-common.c

@@ -537,3 +537,30 @@ void __init omap4_pmic_get_config(struct twl4030_platform_data *pmic_data,
 		pmic_data->v2v1 = &omap4_v2v1_idata;
 }
 #endif /* CONFIG_ARCH_OMAP4 */
+
+#if defined(CONFIG_SND_OMAP_SOC_OMAP_TWL4030) || \
+	defined(CONFIG_SND_OMAP_SOC_OMAP_TWL4030_MODULE)
+#include <linux/platform_data/omap-twl4030.h>
+
+static struct omap_tw4030_pdata omap_twl4030_audio_data;
+
+static struct platform_device audio_device = {
+	.name		= "omap-twl4030",
+	.id		= -1,
+	.dev = {
+		.platform_data = &omap_twl4030_audio_data,
+	},
+};
+
+void __init omap_twl4030_audio_init(char *card_name)
+{
+	omap_twl4030_audio_data.card_name = card_name;
+	platform_device_register(&audio_device);
+}
+
+#else /* SOC_OMAP_TWL4030 */
+void __init omap_twl4030_audio_init(char *card_name, int codec_sysclk)
+{
+	return;
+}
+#endif /* SOC_OMAP_TWL4030 */

arch/arm/mach-omap2/twl-common.h

@@ -59,4 +59,6 @@ void omap3_pmic_get_config(struct twl4030_platform_data *pmic_data,
 void omap4_pmic_get_config(struct twl4030_platform_data *pmic_data,
 			   u32 pdata_flags, u32 regulators_flags);
 
+void omap_twl4030_audio_init(char *card_name);
+
 #endif /* __OMAP_PMIC_COMMON__ */

include/linux/platform_data/omap-twl4030.h

+/**
+ * omap-twl4030.h - ASoC machine driver for TI SoC based boards with twl4030
+ *		    codec, header.
+ *
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
+ * All rights reserved.
+ *
+ * Author: Peter Ujfalusi <peter.ujfalusi@ti.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.
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+#ifndef _OMAP_TWL4030_H_
+#define _OMAP_TWL4030_H_
+
+struct omap_tw4030_pdata {
+	const char *card_name;
+};
+
+#endif /* _OMAP_TWL4030_H_ */

sound/soc/omap/Kconfig

@@ -60,23 +60,6 @@ config SND_OMAP_SOC_OSK5912
 	help
 	  Say Y if you want to add support for SoC audio on osk5912.
 
-config SND_OMAP_SOC_OVERO
-	tristate "SoC Audio support for Gumstix Overo and CompuLab CM-T35"
-	depends on TWL4030_CORE && SND_OMAP_SOC && (MACH_OVERO || MACH_CM_T35)
-	select SND_OMAP_SOC_MCBSP
-	select SND_SOC_TWL4030
-	help
-	  Say Y if you want to add support for SoC audio on the
-	  Gumstix Overo or CompuLab CM-T35
-
-config SND_OMAP_SOC_OMAP3EVM
-	tristate "SoC Audio support for OMAP3EVM board"
-	depends on TWL4030_CORE && SND_OMAP_SOC && MACH_OMAP3EVM
-	select SND_OMAP_SOC_MCBSP
-	select SND_SOC_TWL4030
-	help
-	  Say Y if you want to add support for SoC audio on the omap3evm board.
-
 config SND_OMAP_SOC_AM3517EVM
 	tristate "SoC Audio support for OMAP3517 / AM3517 EVM"
 	depends on SND_OMAP_SOC && MACH_OMAP3517EVM && I2C
@@ -95,6 +78,19 @@ config SND_OMAP_SOC_SDP3430
 	  Say Y if you want to add support for SoC audio on Texas Instruments
 	  SDP3430.
 
+config SND_OMAP_SOC_OMAP_TWL4030
+	tristate "SoC Audio support for TI SoC based boards with twl4030 codec"
+	depends on TWL4030_CORE && SND_OMAP_SOC
+	select SND_OMAP_SOC_MCBSP
+	select SND_SOC_TWL4030
+	help
+	  Say Y if you want to add support for SoC audio on TI SoC based boards
+	  using twl4030 as c codec. This driver currently supports:
+	  - Beagleboard or Devkit8000
+	  - Gumstix Overo or CompuLab CM-T35/CM-T3730
+	  - IGEP v2
+	  - OMAP3EVM
+
 config SND_OMAP_SOC_OMAP_ABE_TWL6040
 	tristate "SoC Audio support for OMAP boards using ABE and twl6040 codec"
 	depends on TWL6040_CORE && SND_OMAP_SOC && ARCH_OMAP4
@@ -127,16 +123,6 @@ config SND_OMAP_SOC_OMAP3_PANDORA
 	help
 	  Say Y if you want to add support for SoC audio on the OMAP3 Pandora.
 
-config SND_OMAP_SOC_OMAP3_BEAGLE
-	tristate "SoC Audio support for OMAP3 Beagle and Devkit8000"
-	depends on TWL4030_CORE && SND_OMAP_SOC
-	depends on (MACH_OMAP3_BEAGLE || MACH_DEVKIT8000)
-	select SND_OMAP_SOC_MCBSP
-	select SND_SOC_TWL4030
-	help
-	  Say Y if you want to add support for SoC audio on the Beagleboard or
-	  the clone Devkit8000.
-
 config SND_OMAP_SOC_ZOOM2
 	tristate "SoC Audio support for Zoom2"
 	depends on TWL4030_CORE && SND_OMAP_SOC && MACH_OMAP_ZOOM2
@@ -144,11 +130,3 @@ config SND_OMAP_SOC_ZOOM2
 	select SND_SOC_TWL4030
 	help
 	  Say Y if you want to add support for Soc audio on Zoom2 board.
-
-config SND_OMAP_SOC_IGEP0020
-	tristate "SoC Audio support for IGEP v2"
-	depends on TWL4030_CORE && SND_OMAP_SOC && MACH_IGEP0020
-	select SND_OMAP_SOC_MCBSP
-	select SND_SOC_TWL4030
-	help
-	  Say Y if you want to add support for Soc audio on IGEP v2 board.

sound/soc/omap/Makefile

@@ -16,29 +16,23 @@ snd-soc-n810-objs := n810.o
 snd-soc-rx51-objs := rx51.o
 snd-soc-ams-delta-objs := ams-delta.o
 snd-soc-osk5912-objs := osk5912.o
-snd-soc-overo-objs := overo.o
-snd-soc-omap3evm-objs := omap3evm.o
 snd-soc-am3517evm-objs := am3517evm.o
 snd-soc-sdp3430-objs := sdp3430.o
 snd-soc-omap-abe-twl6040-objs := omap-abe-twl6040.o
+snd-soc-omap-twl4030-objs := omap-twl4030.o
 snd-soc-omap3pandora-objs := omap3pandora.o
-snd-soc-omap3beagle-objs := omap3beagle.o
 snd-soc-zoom2-objs := zoom2.o
-snd-soc-igep0020-objs := igep0020.o
 snd-soc-omap-hdmi-card-objs := omap-hdmi-card.o
 
 obj-$(CONFIG_SND_OMAP_SOC_N810) += snd-soc-n810.o
 obj-$(CONFIG_SND_OMAP_SOC_RX51) += snd-soc-rx51.o
 obj-$(CONFIG_SND_OMAP_SOC_AMS_DELTA) += snd-soc-ams-delta.o
 obj-$(CONFIG_SND_OMAP_SOC_OSK5912) += snd-soc-osk5912.o
-obj-$(CONFIG_SND_OMAP_SOC_OVERO) += snd-soc-overo.o
 obj-$(CONFIG_SND_OMAP_SOC_OMAP2EVM) += snd-soc-omap2evm.o
-obj-$(CONFIG_SND_OMAP_SOC_OMAP3EVM) += snd-soc-omap3evm.o
 obj-$(CONFIG_SND_OMAP_SOC_AM3517EVM) += snd-soc-am3517evm.o
 obj-$(CONFIG_SND_OMAP_SOC_SDP3430) += snd-soc-sdp3430.o
 obj-$(CONFIG_SND_OMAP_SOC_OMAP_ABE_TWL6040) += snd-soc-omap-abe-twl6040.o
+obj-$(CONFIG_SND_OMAP_SOC_OMAP_TWL4030) += snd-soc-omap-twl4030.o
 obj-$(CONFIG_SND_OMAP_SOC_OMAP3_PANDORA) += snd-soc-omap3pandora.o
-obj-$(CONFIG_SND_OMAP_SOC_OMAP3_BEAGLE) += snd-soc-omap3beagle.o
 obj-$(CONFIG_SND_OMAP_SOC_ZOOM2) += snd-soc-zoom2.o
-obj-$(CONFIG_SND_OMAP_SOC_IGEP0020) += snd-soc-igep0020.o
 obj-$(CONFIG_SND_OMAP_SOC_OMAP_HDMI) += snd-soc-omap-hdmi-card.o

sound/soc/omap/igep0020.c

-/*
- * igep0020.c  --  SoC audio for IGEP v2
- *
- * Based on sound/soc/omap/overo.c by Steve Sakoman
- *
- * 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.
- *
- * 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., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- */
-
-#include <linux/clk.h>
-#include <linux/platform_device.h>
-#include <linux/module.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/soc.h>
-
-#include <asm/mach-types.h>
-#include <mach/hardware.h>
-#include <mach/gpio.h>
-#include <plat/mcbsp.h>
-
-#include "omap-mcbsp.h"
-#include "omap-pcm.h"
-
-static int igep2_hw_params(struct snd_pcm_substream *substream,
-	struct snd_pcm_hw_params *params)
-{
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-	struct snd_soc_dai *codec_dai = rtd->codec_dai;
-	int ret;
-
-	/* Set the codec system clock for DAC and ADC */
-	ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
-					    SND_SOC_CLOCK_IN);
-	if (ret < 0) {
-		printk(KERN_ERR "can't set codec system clock\n");
-		return ret;
-	}
-
-	return 0;
-}
-
-static struct snd_soc_ops igep2_ops = {
-	.hw_params = igep2_hw_params,
-};
-
-/* Digital audio interface glue - connects codec <--> CPU */
-static struct snd_soc_dai_link igep2_dai = {
-	.name = "TWL4030",
-	.stream_name = "TWL4030",
-	.cpu_dai_name = "omap-mcbsp.2",
-	.codec_dai_name = "twl4030-hifi",
-	.platform_name = "omap-pcm-audio",
-	.codec_name = "twl4030-codec",
-	.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
-		   SND_SOC_DAIFMT_CBM_CFM,
-	.ops = &igep2_ops,
-};
-
-/* Audio machine driver */
-static struct snd_soc_card snd_soc_card_igep2 = {
-	.name = "igep2",
-	.owner = THIS_MODULE,
-	.dai_link = &igep2_dai,
-	.num_links = 1,
-};
-
-static struct platform_device *igep2_snd_device;
-
-static int __init igep2_soc_init(void)
-{
-	int ret;
-
-	if (!machine_is_igep0020())
-		return -ENODEV;
-	printk(KERN_INFO "IGEP v2 SoC init\n");
-
-	igep2_snd_device = platform_device_alloc("soc-audio", -1);
-	if (!igep2_snd_device) {
-		printk(KERN_ERR "Platform device allocation failed\n");
-		return -ENOMEM;
-	}
-
-	platform_set_drvdata(igep2_snd_device, &snd_soc_card_igep2);
-
-	ret = platform_device_add(igep2_snd_device);
-	if (ret)
-		goto err1;
-
-	return 0;
-
-err1:
-	printk(KERN_ERR "Unable to add platform device\n");
-	platform_device_put(igep2_snd_device);
-
-	return ret;
-}
-module_init(igep2_soc_init);
-
-static void __exit igep2_soc_exit(void)
-{
-	platform_device_unregister(igep2_snd_device);
-}
-module_exit(igep2_soc_exit);
-
-MODULE_AUTHOR("Enric Balletbo i Serra <eballetbo@iseebcn.com>");
-MODULE_DESCRIPTION("ALSA SoC IGEP v2");
-MODULE_LICENSE("GPL");

sound/soc/omap/omap3beagle.c → sound/soc/omap/omap-twl4030.c

 /*
- * omap3beagle.c  --  SoC audio for OMAP3 Beagle
+ * omap-twl4030.c  --  SoC audio for TI SoC based boards with twl4030 codec
  *
- * Author: Steve Sakoman <steve@sakoman.com>
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
+ * All rights reserved.
+ *
+ * Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
+ *
+ * This driver replaces the following machine drivers:
+ * omap3beagle (Author: Steve Sakoman <steve@sakoman.com>)
+ * omap3evm (Author: Anuj Aggarwal <anuj.aggarwal@ti.com>)
+ * overo (Author: Steve Sakoman <steve@sakoman.com>)
+ * igep0020 (Author: Enric Balletbo i Serra <eballetbo@iseebcn.com>)
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -19,27 +28,26 @@
  *
  */
 
-#include <linux/clk.h>
 #include <linux/platform_device.h>
+#include <linux/platform_data/omap-twl4030.h>
 #include <linux/module.h>
+#include <linux/of.h>
+
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/soc.h>
 
-#include <asm/mach-types.h>
-#include <mach/hardware.h>
-#include <mach/gpio.h>
-#include <plat/mcbsp.h>
-
 #include "omap-mcbsp.h"
 #include "omap-pcm.h"
 
-static int omap3beagle_hw_params(struct snd_pcm_substream *substream,
+static int omap_twl4030_hw_params(struct snd_pcm_substream *substream,
 	struct snd_pcm_hw_params *params)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_dai *codec_dai = rtd->codec_dai;
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	struct snd_soc_codec *codec = rtd->codec;
+	struct snd_soc_card *card = codec->card;
 	unsigned int fmt;
 	int ret;
 
@@ -61,90 +69,120 @@ static int omap3beagle_hw_params(struct snd_pcm_substream *substream,
 	/* Set codec DAI configuration */
 	ret = snd_soc_dai_set_fmt(codec_dai, fmt);
 	if (ret < 0) {
-		printk(KERN_ERR "can't set codec DAI configuration\n");
+		dev_err(card->dev, "can't set codec DAI configuration\n");
 		return ret;
 	}
 
 	/* Set cpu DAI configuration */
 	ret = snd_soc_dai_set_fmt(cpu_dai, fmt);
 	if (ret < 0) {
-		printk(KERN_ERR "can't set cpu DAI configuration\n");
-		return ret;
-	}
-
-	/* Set the codec system clock for DAC and ADC */
-	ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
-				     SND_SOC_CLOCK_IN);
-	if (ret < 0) {
-		printk(KERN_ERR "can't set codec system clock\n");
+		dev_err(card->dev, "can't set cpu DAI configuration\n");
 		return ret;
 	}
 
 	return 0;
 }
 
-static struct snd_soc_ops omap3beagle_ops = {
-	.hw_params = omap3beagle_hw_params,
+static struct snd_soc_ops omap_twl4030_ops = {
+	.hw_params = omap_twl4030_hw_params,
 };
 
 /* Digital audio interface glue - connects codec <--> CPU */
-static struct snd_soc_dai_link omap3beagle_dai = {
-	.name = "TWL4030",
-	.stream_name = "TWL4030",
-	.cpu_dai_name = "omap-mcbsp.2",
-	.platform_name = "omap-pcm-audio",
-	.codec_dai_name = "twl4030-hifi",
-	.codec_name = "twl4030-codec",
-	.ops = &omap3beagle_ops,
+static struct snd_soc_dai_link omap_twl4030_dai_links[] = {
+	{
+		.name = "TWL4030",
+		.stream_name = "TWL4030",
+		.cpu_dai_name = "omap-mcbsp.2",
+		.codec_dai_name = "twl4030-hifi",
+		.platform_name = "omap-pcm-audio",
+		.codec_name = "twl4030-codec",
+		.ops = &omap_twl4030_ops,
+	},
 };
 
 /* Audio machine driver */
-static struct snd_soc_card snd_soc_omap3beagle = {
-	.name = "omap3beagle",
+static struct snd_soc_card omap_twl4030_card = {
 	.owner = THIS_MODULE,
-	.dai_link = &omap3beagle_dai,
-	.num_links = 1,
+	.dai_link = omap_twl4030_dai_links,
+	.num_links = ARRAY_SIZE(omap_twl4030_dai_links),
 };
 
-static struct platform_device *omap3beagle_snd_device;
-
-static int __init omap3beagle_soc_init(void)
+static __devinit int omap_twl4030_probe(struct platform_device *pdev)
 {
-	int ret;
-
-	if (!(machine_is_omap3_beagle() || machine_is_devkit8000()))
+	struct omap_tw4030_pdata *pdata = dev_get_platdata(&pdev->dev);
+	struct device_node *node = pdev->dev.of_node;
+	struct snd_soc_card *card = &omap_twl4030_card;
+	int ret = 0;
+
+	card->dev = &pdev->dev;
+
+	if (node) {
+		struct device_node *dai_node;
+
+		if (snd_soc_of_parse_card_name(card, "ti,model")) {
+			dev_err(&pdev->dev, "Card name is not provided\n");
+			return -ENODEV;
+		}
+
+		dai_node = of_parse_phandle(node, "ti,mcbsp", 0);
+		if (!dai_node) {
+			dev_err(&pdev->dev, "McBSP node is not provided\n");
+			return -EINVAL;
+		}
+		omap_twl4030_dai_links[0].cpu_dai_name  = NULL;
+		omap_twl4030_dai_links[0].cpu_of_node = dai_node;
+
+	} else if (pdata) {
+		if (pdata->card_name) {
+			card->name = pdata->card_name;
+		} else {
+			dev_err(&pdev->dev, "Card name is not provided\n");
+			return -ENODEV;
+		}
+	} else {
+		dev_err(&pdev->dev, "Missing pdata\n");
 		return -ENODEV;
-	pr_info("OMAP3 Beagle/Devkit8000 SoC init\n");
-
-	omap3beagle_snd_device = platform_device_alloc("soc-audio", -1);
-	if (!omap3beagle_snd_device) {
-		printk(KERN_ERR "Platform device allocation failed\n");
-		return -ENOMEM;
 	}
 
-	platform_set_drvdata(omap3beagle_snd_device, &snd_soc_omap3beagle);
-
-	ret = platform_device_add(omap3beagle_snd_device);
-	if (ret)
-		goto err1;
+	ret = snd_soc_register_card(card);
+	if (ret) {
+		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
+			ret);
+		return ret;
+	}
 
 	return 0;
-
-err1:
-	printk(KERN_ERR "Unable to add platform device\n");
-	platform_device_put(omap3beagle_snd_device);
-
-	return ret;
 }
 
-static void __exit omap3beagle_soc_exit(void)
+static int __devexit omap_twl4030_remove(struct platform_device *pdev)
 {
-	platform_device_unregister(omap3beagle_snd_device);
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+	snd_soc_unregister_card(card);
+
+	return 0;
 }
 
-module_init(omap3beagle_soc_init);
-module_exit(omap3beagle_soc_exit);
+static const struct of_device_id omap_twl4030_of_match[] = {
+	{.compatible = "ti,omap-twl4030", },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, omap_twl4030_of_match);
+
+static struct platform_driver omap_twl4030_driver = {
+	.driver = {
+		.name = "omap-twl4030",
+		.owner = THIS_MODULE,
+		.pm = &snd_soc_pm_ops,
+		.of_match_table = omap_twl4030_of_match,
+	},
+	.probe = omap_twl4030_probe,
+	.remove = __devexit_p(omap_twl4030_remove),
+};
+
+module_platform_driver(omap_twl4030_driver);
 
-MODULE_AUTHOR("Steve Sakoman <steve@sakoman.com>");
-MODULE_DESCRIPTION("ALSA SoC OMAP3 Beagle");
+MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>");
+MODULE_DESCRIPTION("ALSA SoC for TI SoC based boards with twl4030 codec");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:omap-twl4030");

sound/soc/omap/omap3evm.c

-/*
- * omap3evm.c  -- ALSA SoC support for OMAP3 EVM
- *
- * Author: Anuj Aggarwal <anuj.aggarwal@ti.com>
- *
- * Based on sound/soc/omap/beagle.c by Steve Sakoman
- *
- * Copyright (C) 2008 Texas Instruments, Incorporated
- *
- * 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 version 2.
- *
- * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
- * whether express or implied; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- */
-
-#include <linux/clk.h>
-#include <linux/platform_device.h>
-#include <linux/module.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/soc.h>
-
-#include <asm/mach-types.h>
-#include <mach/hardware.h>
-#include <mach/gpio.h>
-#include <plat/mcbsp.h>
-
-#include "omap-mcbsp.h"
-#include "omap-pcm.h"
-
-static int omap3evm_hw_params(struct snd_pcm_substream *substream,
-	struct snd_pcm_hw_params *params)
-{
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-	struct snd_soc_dai *codec_dai = rtd->codec_dai;
-	int ret;
-
-	/* Set the codec system clock for DAC and ADC */
-	ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
-				     SND_SOC_CLOCK_IN);
-	if (ret < 0) {
-		printk(KERN_ERR "Can't set codec system clock\n");
-		return ret;
-	}
-
-	return 0;
-}
-
-static struct snd_soc_ops omap3evm_ops = {
-	.hw_params = omap3evm_hw_params,
-};
-
-/* Digital audio interface glue - connects codec <--> CPU */
-static struct snd_soc_dai_link omap3evm_dai = {
-	.name 		= "TWL4030",
-	.stream_name 	= "TWL4030",
-	.cpu_dai_name = "omap-mcbsp.2",
-	.codec_dai_name = "twl4030-hifi",
-	.platform_name = "omap-pcm-audio",
-	.codec_name = "twl4030-codec",
-	.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
-		   SND_SOC_DAIFMT_CBM_CFM,
-	.ops 		= &omap3evm_ops,
-};
-
-/* Audio machine driver */
-static struct snd_soc_card snd_soc_omap3evm = {
-	.name = "omap3evm",
-	.owner = THIS_MODULE,
-	.dai_link = &omap3evm_dai,
-	.num_links = 1,
-};
-
-static struct platform_device *omap3evm_snd_device;
-
-static int __init omap3evm_soc_init(void)
-{
-	int ret;
-
-	if (!machine_is_omap3evm())
-		return -ENODEV;
-	pr_info("OMAP3 EVM SoC init\n");
-
-	omap3evm_snd_device = platform_device_alloc("soc-audio", -1);
-	if (!omap3evm_snd_device) {
-		printk(KERN_ERR "Platform device allocation failed\n");
-		return -ENOMEM;
-	}
-
-	platform_set_drvdata(omap3evm_snd_device, &snd_soc_omap3evm);
-	ret = platform_device_add(omap3evm_snd_device);
-	if (ret)
-		goto err1;
-
-	return 0;
-
-err1:
-	printk(KERN_ERR "Unable to add platform device\n");
-	platform_device_put(omap3evm_snd_device);
-
-	return ret;
-}
-
-static void __exit omap3evm_soc_exit(void)
-{
-	platform_device_unregister(omap3evm_snd_device);
-}
-
-module_init(omap3evm_soc_init);
-module_exit(omap3evm_soc_exit);
-
-MODULE_AUTHOR("Anuj Aggarwal <anuj.aggarwal@ti.com>");
-MODULE_DESCRIPTION("ALSA SoC OMAP3 EVM");
-MODULE_LICENSE("GPL v2");

sound/soc/omap/overo.c

-/*
- * overo.c  --  SoC audio for Gumstix Overo
- *
- * Author: Steve Sakoman <steve@sakoman.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.
- *
- * 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., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- */
-
-#include <linux/clk.h>
-#include <linux/platform_device.h>
-#include <linux/module.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/soc.h>
-
-#include <asm/mach-types.h>
-#include <mach/hardware.h>
-#include <mach/gpio.h>
-#include <plat/mcbsp.h>
-
-#include "omap-mcbsp.h"
-#include "omap-pcm.h"
-
-static int overo_hw_params(struct snd_pcm_substream *substream,
-	struct snd_pcm_hw_params *params)
-{
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-	struct snd_soc_dai *codec_dai = rtd->codec_dai;
-	int ret;
-
-	/* Set the codec system clock for DAC and ADC */
-	ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
-					    SND_SOC_CLOCK_IN);
-	if (ret < 0) {
-		printk(KERN_ERR "can't set codec system clock\n");
-		return ret;
-	}
-
-	return 0;
-}
-
-static struct snd_soc_ops overo_ops = {
-	.hw_params = overo_hw_params,
-};
-
-/* Digital audio interface glue - connects codec <--> CPU */
-static struct snd_soc_dai_link overo_dai = {
-	.name = "TWL4030",
-	.stream_name = "TWL4030",
-	.cpu_dai_name = "omap-mcbsp.2",
-	.codec_dai_name = "twl4030-hifi",
-	.platform_name = "omap-pcm-audio",
-	.codec_name = "twl4030-codec",
-	.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
-		   SND_SOC_DAIFMT_CBM_CFM,
-	.ops = &overo_ops,
-};
-
-/* Audio machine driver */
-static struct snd_soc_card snd_soc_card_overo = {
-	.name = "overo",
-	.owner = THIS_MODULE,
-	.dai_link = &overo_dai,
-	.num_links = 1,
-};
-
-static struct platform_device *overo_snd_device;
-
-static int __init overo_soc_init(void)
-{
-	int ret;
-
-	if (!(machine_is_overo() || machine_is_cm_t35())) {
-		pr_debug("Incomatible machine!\n");
-		return -ENODEV;
-	}
-	printk(KERN_INFO "overo SoC init\n");
-
-	overo_snd_device = platform_device_alloc("soc-audio", -1);
-	if (!overo_snd_device) {
-		printk(KERN_ERR "Platform device allocation failed\n");
-		return -ENOMEM;
-	}
-
-	platform_set_drvdata(overo_snd_device, &snd_soc_card_overo);
-
-	ret = platform_device_add(overo_snd_device);
-	if (ret)
-		goto err1;
-
-	return 0;
-
-err1:
-	printk(KERN_ERR "Unable to add platform device\n");
-	platform_device_put(overo_snd_device);
-
-	return ret;
-}
-module_init(overo_soc_init);
-
-static void __exit overo_soc_exit(void)
-{
-	platform_device_unregister(overo_snd_device);
-}
-module_exit(overo_soc_exit);
-
-MODULE_AUTHOR("Steve Sakoman <steve@sakoman.com>");
-MODULE_DESCRIPTION("ALSA SoC overo");
-MODULE_LICENSE("GPL");