The patch adds support for SPEAr13XX machine driver.
Signed-off-by: Rajeev Kumar rajeev-dlh.kumar@st.com --- sound/soc/spear/evb_sta529.c | 121 ++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 121 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..d43b433 --- /dev/null +++ b/sound/soc/spear/evb_sta529.c @@ -0,0 +1,121 @@ +/* + * 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; + 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", + .dai_link = &evb_dai, + .num_links = 1, +}; + +static __devinit int spear_evb_probe(struct platform_device *pdev) +{ + struct snd_soc_card *card = &snd_soc_evb; + int ret; + + card->dev = &pdev->dev; + + ret = snd_soc_register_card(card); + if (ret) { + dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", + ret); + return ret; + } + + return 0; +} + +static int __devexit spear_evb_remove(struct platform_device *pdev) +{ + struct snd_soc_card *card = platform_get_drvdata(pdev); + + snd_soc_unregister_card(card); + + return 0; +} + +static struct platform_driver evb_driver = { + .driver = { + .name = "sta529", + .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, + }, + .probe = spear_evb_probe, + .remove = __devexit_p(spear_evb_remove), +}; + +static int __init spear_audio_init(void) +{ + return platform_driver_register(&evb_driver); +} +module_init(spear_audio_init); + +static void __exit spear_audio_exit(void) +{ + platform_driver_unregister(&evb_driver); +} +module_exit(spear_audio_exit); + +MODULE_DESCRIPTION("ST SPEAR EVB ASoC driver"); +MODULE_AUTHOR("Rajeev Kumarrajeev-dlh.kumar@st.com"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:sta529");