linux-kernel - Re: [alsa-devel] [PATCH 1/3] ASoC: pxa: Convert poodle to use snd_soc_register

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Message-ID: <CAN1soZyLrqUvM55gHEZb1as5dEEGjH4hhQ6foU_k9Rgj7dADqw@mail.gmail.com>
Date:	Fri, 30 Dec 2011 09:45:55 +0800
From:	Haojian Zhuang <haojian.zhuang@...il.com>
To:	Axel Lin <axel.lin@...il.com>
Cc:	linux-kernel@...r.kernel.org, alsa-devel@...a-project.org,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Eric Miao <eric.y.miao@...il.com>,
	Haojian Zhuang <haojian.zhuang@...vell.com>,
	Liam Girdwood <lrg@...com>
Subject: Re: [alsa-devel] [PATCH 1/3] ASoC: pxa: Convert poodle to use snd_soc_register_card()

On Fri, Dec 30, 2011 at 9:16 AM, Axel Lin <axel.lin@...il.com> wrote:
> Use snd_soc_register_card() instead of creating a "soc-audio" platform device.
>
> Signed-off-by: Axel Lin <axel.lin@...il.com>
> ---
>  arch/arm/mach-pxa/poodle.c |    6 ++++++
>  sound/soc/pxa/poodle.c     |   42 +++++++++++++++++++++++-------------------
>  2 files changed, 29 insertions(+), 19 deletions(-)
>
> diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c
> index 69036e4..744baee 100644
> --- a/arch/arm/mach-pxa/poodle.c
> +++ b/arch/arm/mach-pxa/poodle.c
> @@ -158,6 +158,11 @@ static struct scoop_pcmcia_config poodle_pcmcia_config = {
>  EXPORT_SYMBOL(poodle_scoop_device);
>
>
> +static struct platform_device poodle_audio_device = {
> +       .name   = "poodle-audio",
> +       .id     = -1,
> +};
> +
>  /* LoCoMo device */
>  static struct resource locomo_resources[] = {
>        [0] = {
> @@ -407,6 +412,7 @@ static struct platform_device sharpsl_rom_device = {
>  static struct platform_device *devices[] __initdata = {
>        &poodle_locomo_device,
>        &poodle_scoop_device,
> +       &poodle_audio_device,
>        &sharpsl_nand_device,
>        &sharpsl_rom_device,
>  };
> diff --git a/sound/soc/pxa/poodle.c b/sound/soc/pxa/poodle.c
> index 4c29bc1..c9e24bf 100644
> --- a/sound/soc/pxa/poodle.c
> +++ b/sound/soc/pxa/poodle.c
> @@ -281,22 +281,18 @@ static struct snd_soc_dai_link poodle_dai = {
>  };
>
>  /* poodle audio machine driver */
> -static struct snd_soc_card snd_soc_poodle = {
> +static struct snd_soc_card poodle = {
>        .name = "Poodle",
>        .dai_link = &poodle_dai,
>        .num_links = 1,
>        .owner = THIS_MODULE,
>  };
>
> -static struct platform_device *poodle_snd_device;
> -
> -static int __init poodle_init(void)
> +static int __devinit poodle_probe(struct platform_device *pdev)
>  {
> +       struct snd_soc_card *card = &poodle;
>        int ret;
>
> -       if (!machine_is_poodle())
> -               return -ENODEV;
> -
>        locomo_gpio_set_dir(&poodle_locomo_device.dev,
>                POODLE_LOCOMO_GPIO_AMP_ON, 0);
>        /* should we mute HP at startup - burning power ?*/
> @@ -305,28 +301,36 @@ static int __init poodle_init(void)
>        locomo_gpio_set_dir(&poodle_locomo_device.dev,
>                POODLE_LOCOMO_GPIO_MUTE_R, 0);
>
> -       poodle_snd_device = platform_device_alloc("soc-audio", -1);
> -       if (!poodle_snd_device)
> -               return -ENOMEM;
> -
> -       platform_set_drvdata(poodle_snd_device, &snd_soc_poodle);
> -       ret = platform_device_add(poodle_snd_device);
> +       card->dev = &pdev->dev;
>
> +       ret = snd_soc_register_card(card);
>        if (ret)
> -               platform_device_put(poodle_snd_device);
> -
> +               dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
> +                       ret);
>        return ret;
>  }
>
> -static void __exit poodle_exit(void)
> +static int __devexit poodle_remove(struct platform_device *pdev)
>  {
> -       platform_device_unregister(poodle_snd_device);
> +       struct snd_soc_card *card = platform_get_drvdata(pdev);
> +
> +       snd_soc_unregister_card(card);
> +       return 0;
>  }
>
> -module_init(poodle_init);
> -module_exit(poodle_exit);
> +static struct platform_driver poodle_driver = {
> +       .driver         = {
> +               .name   = "poodle-audio",
> +               .owner  = THIS_MODULE,
> +       },
> +       .probe          = poodle_probe,
> +       .remove         = __devexit_p(poodle_remove),
> +};
> +
> +module_platform_driver(poodle_driver);
>
>  /* Module information */
>  MODULE_AUTHOR("Richard Purdie");
>  MODULE_DESCRIPTION("ALSA SoC Poodle");
>  MODULE_LICENSE("GPL");
> +MODULE_ALIAS("platform:poodle-audio");
> --
> 1.7.5.4
>
Acked.

I think Mark can merge this patch series.

Best Regards
Haojian
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