diff mbox

[1/1] ASoC: Added OMAP3 EVM support in ASoC.

Message ID 1241712527-16269-1-git-send-email-anuj.aggarwal@ti.com (mailing list archive)
State Superseded, archived
Headers show

Commit Message

Aggarwal, Anuj May 7, 2009, 4:08 p.m. UTC 
Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com>
---
 sound/soc/omap/Kconfig    |    8 +++
 sound/soc/omap/Makefile   |    2 +
 sound/soc/omap/omap3evm.c |  147 +++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 157 insertions(+), 0 deletions(-)
 create mode 100644 sound/soc/omap/omap3evm.c

Comments

Arun Sudhilal May 8, 2009, 4:42 a.m. UTC | #1 
On Thu, May 7, 2009 at 9:38 PM, Anuj Aggarwal <anuj.aggarwal@ti.com> wrote:
>
> Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com>
> ---
>  sound/soc/omap/Kconfig    |    8 +++
>  sound/soc/omap/Makefile   |    2 +
>  sound/soc/omap/omap3evm.c |  147 +++++++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 157 insertions(+), 0 deletions(-)
>  create mode 100644 sound/soc/omap/omap3evm.c
>
> diff --git a/sound/soc/omap/Kconfig b/sound/soc/omap/Kconfig
> index 675732e..b771238 100644
> --- a/sound/soc/omap/Kconfig
> +++ b/sound/soc/omap/Kconfig
> @@ -39,6 +39,14 @@ config SND_OMAP_SOC_OMAP2EVM
>        help
>          Say Y if you want to add support for SoC audio on the omap2evm board.
>
> +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_SDP3430
>        tristate "SoC Audio support for Texas Instruments SDP3430"
>        depends on TWL4030_CORE && SND_OMAP_SOC && MACH_OMAP_3430SDP
> diff --git a/sound/soc/omap/Makefile b/sound/soc/omap/Makefile
> index 0c9e4ac..a37f498 100644
> --- a/sound/soc/omap/Makefile
> +++ b/sound/soc/omap/Makefile
> @@ -10,6 +10,7 @@ snd-soc-n810-objs := n810.o
>  snd-soc-osk5912-objs := osk5912.o
>  snd-soc-overo-objs := overo.o
>  snd-soc-omap2evm-objs := omap2evm.o
> +snd-soc-omap3evm-objs := omap3evm.o
>  snd-soc-sdp3430-objs := sdp3430.o
>  snd-soc-omap3pandora-objs := omap3pandora.o
>  snd-soc-omap3beagle-objs := omap3beagle.o
> @@ -18,6 +19,7 @@ obj-$(CONFIG_SND_OMAP_SOC_N810) += snd-soc-n810.o
>  obj-$(CONFIG_SND_OMAP_SOC_OSK5912) += snd-soc-osk5912.o
>  obj-$(CONFIG_SND_OMAP_SOC_OVERO) += snd-soc-overo.o
>  obj-$(CONFIG_MACH_OMAP2EVM) += snd-soc-omap2evm.o
> +obj-$(CONFIG_MACH_OMAP3EVM) += snd-soc-omap3evm.o
>  obj-$(CONFIG_SND_OMAP_SOC_SDP3430) += snd-soc-sdp3430.o
>  obj-$(CONFIG_SND_OMAP_SOC_OMAP3_PANDORA) += snd-soc-omap3pandora.o
>  obj-$(CONFIG_SND_OMAP_SOC_OMAP3_BEAGLE) += snd-soc-omap3beagle.o
> diff --git a/sound/soc/omap/omap3evm.c b/sound/soc/omap/omap3evm.c
> new file mode 100644
> index 0000000..2af5d93
> --- /dev/null
> +++ b/sound/soc/omap/omap3evm.c
> @@ -0,0 +1,147 @@
> +/*
> + * 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 <sound/core.h>
> +#include <sound/pcm.h>
> +#include <sound/soc.h>
> +#include <sound/soc-dapm.h>
> +
> +#include <asm/mach-types.h>
> +#include <mach/hardware.h>
> +#include <mach/gpio.h>
> +#include <mach/mcbsp.h>
> +
> +#include "omap-mcbsp.h"
> +#include "omap-pcm.h"
> +#include "../codecs/twl4030.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->dai->codec_dai;
> +       struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
> +       int ret;
> +
> +       /* Set codec DAI configuration */
> +       ret = snd_soc_dai_set_fmt(codec_dai,
> +                                 SND_SOC_DAIFMT_I2S |
> +                                 SND_SOC_DAIFMT_NB_NF |
> +                                 SND_SOC_DAIFMT_CBM_CFM);
> +       if (ret < 0) {
> +               printk(KERN_ERR "Can't set codec DAI configuration\n");
> +               return ret;
> +       }
> +
> +       /* Set cpu DAI configuration */
> +       ret = snd_soc_dai_set_fmt(cpu_dai,
> +                                 SND_SOC_DAIFMT_I2S |
> +                                 SND_SOC_DAIFMT_NB_NF |
> +                                 SND_SOC_DAIFMT_CBM_CFM);
> +       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");
> +               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        = &omap_mcbsp_dai[0],
> +       .codec_dai      = &twl4030_dai,

Please use
.codec_dai = &twl4030_dai[TWL4030_DAI_HIFI],


> +       .ops            = &omap3evm_ops,
> +};
> +
> +/* Audio machine driver */
> +static struct snd_soc_card snd_soc_omap3evm = {
> +       .name = "omap3evm",
> +       .platform = &omap_soc_platform,
> +       .dai_link = &omap3evm_dai,
> +       .num_links = 1,
> +};
> +
> +/* Audio subsystem */
> +static struct snd_soc_device omap3evm_snd_devdata = {
> +       .card = &snd_soc_omap3evm,
> +       .codec_dev = &soc_codec_dev_twl4030,
> +};
> +
> +static struct platform_device *omap3evm_snd_device;
> +
> +static int __init omap3evm_soc_init(void)
> +{
> +       int ret;
> +
> +       if (!machine_is_omap3evm()) {
> +               pr_debug("Not OMAP3 EVM!\n");
> +               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, &omap3evm_snd_devdata);
> +       omap3evm_snd_devdata.dev = &omap3evm_snd_device->dev;
> +       *(unsigned int *)omap3evm_dai.cpu_dai->private_data = 1;
> +
> +       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("GPLv2");
> --
> 1.6.2.4
>
>
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Aggarwal, Anuj May 8, 2009, 9:08 a.m. UTC | #2 
> -----Original Message-----
> From: Arun KS [mailto:getarunks@gmail.com]
> Sent: Friday, May 08, 2009 10:13 AM
> To: Aggarwal, Anuj
> Cc: alsa-devel@alsa-project.org; linux-omap@vger.kernel.org
> Subject: Re: [PATCH 1/1] ASoC: Added OMAP3 EVM support in ASoC.
> 
> On Thu, May 7, 2009 at 9:38 PM, Anuj Aggarwal <anuj.aggarwal@ti.com>
> wrote:
> >
> > Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com>
> > ---
> >  sound/soc/omap/Kconfig    |    8 +++
> >  sound/soc/omap/Makefile   |    2 +
> >  sound/soc/omap/omap3evm.c |  147
> +++++++++++++++++++++++++++++++++++++++++++++
> >  3 files changed, 157 insertions(+), 0 deletions(-)
> >  create mode 100644 sound/soc/omap/omap3evm.c
> >
> > diff --git a/sound/soc/omap/Kconfig b/sound/soc/omap/Kconfig
> > index 675732e..b771238 100644
> > --- a/sound/soc/omap/Kconfig
> > +++ b/sound/soc/omap/Kconfig
> > @@ -39,6 +39,14 @@ config SND_OMAP_SOC_OMAP2EVM
> >        help
> >          Say Y if you want to add support for SoC audio on the omap2evm
> board.
> >
> > +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_SDP3430
> >        tristate "SoC Audio support for Texas Instruments SDP3430"
> >        depends on TWL4030_CORE && SND_OMAP_SOC &&
> MACH_OMAP_3430SDP
> > diff --git a/sound/soc/omap/Makefile b/sound/soc/omap/Makefile
> > index 0c9e4ac..a37f498 100644
> > --- a/sound/soc/omap/Makefile
> > +++ b/sound/soc/omap/Makefile
> > @@ -10,6 +10,7 @@ snd-soc-n810-objs := n810.o
> >  snd-soc-osk5912-objs := osk5912.o
> >  snd-soc-overo-objs := overo.o
> >  snd-soc-omap2evm-objs := omap2evm.o
> > +snd-soc-omap3evm-objs := omap3evm.o
> >  snd-soc-sdp3430-objs := sdp3430.o
> >  snd-soc-omap3pandora-objs := omap3pandora.o
> >  snd-soc-omap3beagle-objs := omap3beagle.o
> > @@ -18,6 +19,7 @@ obj-$(CONFIG_SND_OMAP_SOC_N810) += snd-soc-
> n810.o
> >  obj-$(CONFIG_SND_OMAP_SOC_OSK5912) += snd-soc-osk5912.o
> >  obj-$(CONFIG_SND_OMAP_SOC_OVERO) += snd-soc-overo.o
> >  obj-$(CONFIG_MACH_OMAP2EVM) += snd-soc-omap2evm.o
> > +obj-$(CONFIG_MACH_OMAP3EVM) += snd-soc-omap3evm.o
> >  obj-$(CONFIG_SND_OMAP_SOC_SDP3430) += snd-soc-sdp3430.o
> >  obj-$(CONFIG_SND_OMAP_SOC_OMAP3_PANDORA) += snd-soc-
> omap3pandora.o
> >  obj-$(CONFIG_SND_OMAP_SOC_OMAP3_BEAGLE) += snd-soc-
> omap3beagle.o
> > diff --git a/sound/soc/omap/omap3evm.c b/sound/soc/omap/omap3evm.c
> > new file mode 100644
> > index 0000000..2af5d93
> > --- /dev/null
> > +++ b/sound/soc/omap/omap3evm.c
> > @@ -0,0 +1,147 @@
> > +/*
> > + * 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 <sound/core.h>
> > +#include <sound/pcm.h>
> > +#include <sound/soc.h>
> > +#include <sound/soc-dapm.h>
> > +
> > +#include <asm/mach-types.h>
> > +#include <mach/hardware.h>
> > +#include <mach/gpio.h>
> > +#include <mach/mcbsp.h>
> > +
> > +#include "omap-mcbsp.h"
> > +#include "omap-pcm.h"
> > +#include "../codecs/twl4030.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->dai->codec_dai;
> > +       struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
> > +       int ret;
> > +
> > +       /* Set codec DAI configuration */
> > +       ret = snd_soc_dai_set_fmt(codec_dai,
> > +                                 SND_SOC_DAIFMT_I2S |
> > +                                 SND_SOC_DAIFMT_NB_NF |
> > +                                 SND_SOC_DAIFMT_CBM_CFM);
> > +       if (ret < 0) {
> > +               printk(KERN_ERR "Can't set codec DAI configuration\n");
> > +               return ret;
> > +       }
> > +
> > +       /* Set cpu DAI configuration */
> > +       ret = snd_soc_dai_set_fmt(cpu_dai,
> > +                                 SND_SOC_DAIFMT_I2S |
> > +                                 SND_SOC_DAIFMT_NB_NF |
> > +                                 SND_SOC_DAIFMT_CBM_CFM);
> > +       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");
> > +               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        = &omap_mcbsp_dai[0],
> > +       .codec_dai      = &twl4030_dai,
> 
> Please use
> .codec_dai = &twl4030_dai[TWL4030_DAI_HIFI],
[Aggarwal, Anuj] I will do the modification and send the patch again.
> 
> 
> > +       .ops            = &omap3evm_ops,
> > +};
> > +
> > +/* Audio machine driver */
> > +static struct snd_soc_card snd_soc_omap3evm = {
> > +       .name = "omap3evm",
> > +       .platform = &omap_soc_platform,
> > +       .dai_link = &omap3evm_dai,
> > +       .num_links = 1,
> > +};
> > +
> > +/* Audio subsystem */
> > +static struct snd_soc_device omap3evm_snd_devdata = {
> > +       .card = &snd_soc_omap3evm,
> > +       .codec_dev = &soc_codec_dev_twl4030,
> > +};
> > +
> > +static struct platform_device *omap3evm_snd_device;
> > +
> > +static int __init omap3evm_soc_init(void)
> > +{
> > +       int ret;
> > +
> > +       if (!machine_is_omap3evm()) {
> > +               pr_debug("Not OMAP3 EVM!\n");
> > +               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,
> &omap3evm_snd_devdata);
> > +       omap3evm_snd_devdata.dev = &omap3evm_snd_device->dev;
> > +       *(unsigned int *)omap3evm_dai.cpu_dai->private_data = 1;
> > +
> > +       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("GPLv2");
> > --
> > 1.6.2.4
> >
> >

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Mark Brown May 8, 2009, 10:20 a.m. UTC | #3 
On Thu, May 07, 2009 at 09:38:47PM +0530, Anuj Aggarwal wrote:

> +	if (!machine_is_omap3evm()) {
> +		pr_debug("Not OMAP3 EVM!\n");
> +		return -ENODEV;
> +	}

Since you've said you'll be resubmitting perhaps this should be an error
rather than debug message?
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diff mbox

Patch

diff --git a/sound/soc/omap/Kconfig b/sound/soc/omap/Kconfig
index 675732e..b771238 100644
--- a/sound/soc/omap/Kconfig
+++ b/sound/soc/omap/Kconfig
@@ -39,6 +39,14 @@  config SND_OMAP_SOC_OMAP2EVM
 	help
 	  Say Y if you want to add support for SoC audio on the omap2evm board.
 
+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_SDP3430
 	tristate "SoC Audio support for Texas Instruments SDP3430"
 	depends on TWL4030_CORE && SND_OMAP_SOC && MACH_OMAP_3430SDP
diff --git a/sound/soc/omap/Makefile b/sound/soc/omap/Makefile
index 0c9e4ac..a37f498 100644
--- a/sound/soc/omap/Makefile
+++ b/sound/soc/omap/Makefile
@@ -10,6 +10,7 @@  snd-soc-n810-objs := n810.o
 snd-soc-osk5912-objs := osk5912.o
 snd-soc-overo-objs := overo.o
 snd-soc-omap2evm-objs := omap2evm.o
+snd-soc-omap3evm-objs := omap3evm.o
 snd-soc-sdp3430-objs := sdp3430.o
 snd-soc-omap3pandora-objs := omap3pandora.o
 snd-soc-omap3beagle-objs := omap3beagle.o
@@ -18,6 +19,7 @@  obj-$(CONFIG_SND_OMAP_SOC_N810) += snd-soc-n810.o
 obj-$(CONFIG_SND_OMAP_SOC_OSK5912) += snd-soc-osk5912.o
 obj-$(CONFIG_SND_OMAP_SOC_OVERO) += snd-soc-overo.o
 obj-$(CONFIG_MACH_OMAP2EVM) += snd-soc-omap2evm.o
+obj-$(CONFIG_MACH_OMAP3EVM) += snd-soc-omap3evm.o
 obj-$(CONFIG_SND_OMAP_SOC_SDP3430) += snd-soc-sdp3430.o
 obj-$(CONFIG_SND_OMAP_SOC_OMAP3_PANDORA) += snd-soc-omap3pandora.o
 obj-$(CONFIG_SND_OMAP_SOC_OMAP3_BEAGLE) += snd-soc-omap3beagle.o
diff --git a/sound/soc/omap/omap3evm.c b/sound/soc/omap/omap3evm.c
new file mode 100644
index 0000000..2af5d93
--- /dev/null
+++ b/sound/soc/omap/omap3evm.c
@@ -0,0 +1,147 @@ 
+/*
+ * 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 <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+
+#include <asm/mach-types.h>
+#include <mach/hardware.h>
+#include <mach/gpio.h>
+#include <mach/mcbsp.h>
+
+#include "omap-mcbsp.h"
+#include "omap-pcm.h"
+#include "../codecs/twl4030.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->dai->codec_dai;
+	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+	int ret;
+
+	/* Set codec DAI configuration */
+	ret = snd_soc_dai_set_fmt(codec_dai,
+				  SND_SOC_DAIFMT_I2S |
+				  SND_SOC_DAIFMT_NB_NF |
+				  SND_SOC_DAIFMT_CBM_CFM);
+	if (ret < 0) {
+		printk(KERN_ERR "Can't set codec DAI configuration\n");
+		return ret;
+	}
+
+	/* Set cpu DAI configuration */
+	ret = snd_soc_dai_set_fmt(cpu_dai,
+				  SND_SOC_DAIFMT_I2S |
+				  SND_SOC_DAIFMT_NB_NF |
+				  SND_SOC_DAIFMT_CBM_CFM);
+	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");
+		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 	= &omap_mcbsp_dai[0],
+	.codec_dai 	= &twl4030_dai,
+	.ops 		= &omap3evm_ops,
+};
+
+/* Audio machine driver */
+static struct snd_soc_card snd_soc_omap3evm = {
+	.name = "omap3evm",
+	.platform = &omap_soc_platform,
+	.dai_link = &omap3evm_dai,
+	.num_links = 1,
+};
+
+/* Audio subsystem */
+static struct snd_soc_device omap3evm_snd_devdata = {
+	.card = &snd_soc_omap3evm,
+	.codec_dev = &soc_codec_dev_twl4030,
+};
+
+static struct platform_device *omap3evm_snd_device;
+
+static int __init omap3evm_soc_init(void)
+{
+	int ret;
+
+	if (!machine_is_omap3evm()) {
+		pr_debug("Not OMAP3 EVM!\n");
+		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, &omap3evm_snd_devdata);
+	omap3evm_snd_devdata.dev = &omap3evm_snd_device->dev;
+	*(unsigned int *)omap3evm_dai.cpu_dai->private_data = 1;
+
+	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("GPLv2");