diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-08-03 17:30:57 +0900 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-08-10 00:36:12 +0900 |
| commit | 39e9b8d25d1c3a11e41e0044e010034a883f02ef (patch) | |
| tree | badbebb99d9071054cbae4f02b83fedaa0f0bbe1 /sound/soc/codecs/wm8741.c | |
| parent | 398575db00c17a2068a7e0c1c36d340445bc7d65 (diff) | |
| download | linux-39e9b8d25d1c3a11e41e0044e010034a883f02ef.tar.gz | |
ASoC: Add SPI support for WM8741
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
Diffstat (limited to 'sound/soc/codecs/wm8741.c')
| -rw-r--r-- | sound/soc/codecs/wm8741.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm8741.c b/sound/soc/codecs/wm8741.c index 00f80f7655cb..9f6e952da8ec 100644 --- a/sound/soc/codecs/wm8741.c +++ b/sound/soc/codecs/wm8741.c @@ -17,6 +17,7 @@ #include <linux/delay.h> #include <linux/pm.h> #include <linux/i2c.h> +#include <linux/spi/spi.h> #include <linux/platform_device.h> #include <linux/regulator/consumer.h> #include <linux/slab.h> @@ -547,6 +548,43 @@ static struct i2c_driver wm8741_i2c_driver = { }; #endif +#if defined(CONFIG_SPI_MASTER) +static int __devinit wm8741_spi_probe(struct spi_device *spi) +{ + struct wm8741_priv *wm8741; + int ret; + + wm8741 = kzalloc(sizeof(struct wm8741_priv), GFP_KERNEL); + if (wm8741 == NULL) + return -ENOMEM; + + wm8741->control_type = SND_SOC_SPI; + spi_set_drvdata(spi, wm8741); + + ret = snd_soc_register_codec(&spi->dev, + &soc_codec_dev_wm8741, &wm8741_dai, 1); + if (ret < 0) + kfree(wm8741); + return ret; +} + +static int __devexit wm8741_spi_remove(struct spi_device *spi) +{ + snd_soc_unregister_codec(&spi->dev); + kfree(spi_get_drvdata(spi)); + return 0; +} + +static struct spi_driver wm8741_spi_driver = { + .driver = { + .name = "wm8741", + .owner = THIS_MODULE, + }, + .probe = wm8741_spi_probe, + .remove = __devexit_p(wm8741_spi_remove), +}; +#endif /* CONFIG_SPI_MASTER */ + static int __init wm8741_modinit(void) { int ret = 0; @@ -556,6 +594,13 @@ static int __init wm8741_modinit(void) if (ret != 0) pr_err("Failed to register WM8741 I2C driver: %d\n", ret); #endif +#if defined(CONFIG_SPI_MASTER) + ret = spi_register_driver(&wm8741_spi_driver); + if (ret != 0) { + printk(KERN_ERR "Failed to register wm8741 SPI driver: %d\n", + ret); + } +#endif return ret; } @@ -563,6 +608,9 @@ module_init(wm8741_modinit); static void __exit wm8741_exit(void) { +#if defined(CONFIG_SPI_MASTER) + spi_unregister_driver(&wm8741_spi_driver); +#endif #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) i2c_del_driver(&wm8741_i2c_driver); #endif |