The patch adds support for SPEAr13XX machine driver.
Signed-off-by: Rajeev Kumar rajeev-dlh.kumar@st.com --- sound/soc/spear/evb_sta529.c | 104 ++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 104 insertions(+), 0 deletions(-) create mode 100644 sound/soc/spear/evb_sta529.c
diff --git a/sound/soc/spear/evb_sta529.c b/sound/soc/spear/evb_sta529.c new file mode 100644 index 0000000..4c8bfc3 --- /dev/null +++ b/sound/soc/spear/evb_sta529.c @@ -0,0 +1,104 @@ +/* + * ASoC machine driver for spear platform + * + * sound/soc/spear/evb_sta529.c + * + * Copyright (C) 2011 ST Microelectronics + * Rajeev Kumar rajeev-dlh.kumar@st.com + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include <linux/interrupt.h> +#include <linux/i2c.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/platform_device.h> +#include <linux/timer.h> + +#include <mach/generic.h> +#include <mach/misc_regs.h> + +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> + +#include "spear13xx-i2s.h" +#include "spear13xx-pcm.h" + +static int +sta529_evb_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; + int ret = 0; + + /* set codec DAI configuration */ + ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | + SND_SOC_DAIFMT_CBS_CFM); + + return ret; + +} + +static struct snd_soc_ops sta529_evb_ops = { + .hw_params = sta529_evb_hw_params, +}; + +/* spear digital audio interface glue - connects codec <--> CPU */ +static struct snd_soc_dai_link evb_dai = { + .name = "SPEARSTA529", + .stream_name = "I2S Audio", + .cpu_dai_name = "spear13xx-i2s.0", + .platform_name = "spear-pcm-audio", + .codec_dai_name = "sta529-audio", + .codec_name = "sta529.0-001a", + .ops = &sta529_evb_ops, +}; + +/* spear audio machine driver */ +static struct snd_soc_card snd_soc_evb = { + .name = "sta529-codec", + .dai_link = &evb_dai, + .num_links = 1, +}; + +static struct platform_device *evb_snd_device; + +static int __init spear_init(void) +{ + int ret; + + /* Create and register platform device */ + evb_snd_device = platform_device_alloc("soc-audio", 0); + if (!evb_snd_device) { + printk(KERN_ERR "platform_device_alloc fails\n"); + return -ENOMEM; + } + + platform_set_drvdata(evb_snd_device, &snd_soc_evb); + ret = platform_device_add(evb_snd_device); + if (ret) { + printk(KERN_ERR "Unable to add platform device\n"); + platform_device_put(evb_snd_device); + } + + return ret; +} +module_init(spear_init); + +static void __exit spear_exit(void) +{ + platform_device_unregister(evb_snd_device); +} +module_exit(spear_exit); + +MODULE_AUTHOR("Rajeev Kumar"); +MODULE_DESCRIPTION("ST SPEAR EVB ASoC driver"); +MODULE_LICENSE("GPL");