[alsa-devel] [RFC PATCH] ASoC: Samsung: Register the audio dma platform device

[Padma Venkat]

cc'ing Mark Brown

On Wed, Nov 14, 2012 at 5:39 PM, Padmavathi Venna <padma.v at samsung.com> wrote:
> Audio dma device is not a hardware peripherial.
> So this device can't be added in the dt devices list.
> So expanded the module_platform_driver and registered
> this device using "platform_device_register_simple".
>
> Signed-off-by: Padmavathi Venna <padma.v at samsung.com>
> ---
>  sound/soc/samsung/dma.c |   30 +++++++++++++++++++++++++++++-
>  1 files changed, 29 insertions(+), 1 deletions(-)
>
> diff --git a/sound/soc/samsung/dma.c b/sound/soc/samsung/dma.c
> index 359708c..17ae9c0 100644
> --- a/sound/soc/samsung/dma.c
> +++ b/sound/soc/samsung/dma.c
> @@ -444,6 +444,8 @@ static int __devexit samsung_asoc_platform_remove(struct platform_device *pdev)
>         return 0;
>  }
>
> +static struct platform_device *asoc_dma_device;
> +
>  static struct platform_driver asoc_dma_driver = {
>         .driver = {
>                 .name = "samsung-audio",
> @@ -454,7 +456,33 @@ static struct platform_driver asoc_dma_driver = {
>         .remove = __devexit_p(samsung_asoc_platform_remove),
>  };
>
> -module_platform_driver(asoc_dma_driver);
> +static int __init asoc_dma_init(void)
> +{
> +       int ret;
> +
> +       ret = platform_driver_register(&asoc_dma_driver);
> +       if (ret) {
> +               pr_err("unable to register driver\n");
> +               return ret;
> +       }
> +
> +       asoc_dma_device = platform_device_register_simple("samsung-audio", -1, NULL, 0);
> +       if (IS_ERR(asoc_dma_device)) {
> +               platform_driver_unregister(&asoc_dma_driver);
> +               return PTR_ERR(asoc_dma_device);
> +       }
> +
> +       return 0;
> +}
> +
> +static void __exit asoc_dma_exit(void)
> +{
> +       platform_device_unregister(asoc_dma_device);
> +       platform_driver_unregister(&asoc_dma_driver);
> +}
> +
> +module_init(asoc_dma_init);
> +module_exit(asoc_dma_exit);
>
>  MODULE_AUTHOR("Ben Dooks, <ben at simtec.co.uk>");
>  MODULE_DESCRIPTION("Samsung ASoC DMA Driver");
> --
> 1.7.4.4
>
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