[alsa-devel] [PATCH 2/2] ASoC: Add SPI support for WM8741

[Liam Girdwood]

On 03/08/11 09:47, Mark Brown wrote:
> Signed-off-by: Mark Brown <broonie at opensource.wolfsonmicro.com>
> ---

Could not see 1/2

but 2/2

Acked-by: Liam Girdwood <lrg at ti.com>

>  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 d4bfffd..c1b6e91 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>
> @@ -549,6 +550,43 @@ 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;
> @@ -558,6 +596,13 @@ 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;
>  }
> @@ -565,6 +610,9 @@ 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