[alsa-devel] [PATCH] ASoC: SPEAr spdif_{in, out}: use devm for clk and a few more cleanups

[Lars-Peter Clausen]

On 05/08/2013 11:47 AM, Uwe Kleine-König wrote:
> Drop dev_set_drvdata as this is handled in the core and use
> devm_request_and_ioremap instead of devm_ioremap to properly register the
> address range used
> 
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig at pengutronix.de>

Btw, the patch added a couple of warnings and one build error:

sound/soc/spear/spdif_in.c: In function 'spdif_in_remove':
sound/soc/spear/spdif_in.c:272:23: warning: unused variable 'host'
  CC      sound/soc/spear/spdif_out.o
sound/soc/spear/spdif_out.c: In function 'spdif_out_probe':
sound/soc/spear/spdif_out.c:302:5: warning: passing argument 2 of
'devm_request_and_ioremap' makes pointer from integer without a cast
include/linux/device.h:576:15: note: expected 'struct resource *' but
argument is of type 'resource_size_t'
sound/soc/spear/spdif_out.c:302:5: error: too many arguments to function
'devm_request_and_ioremap'
include/linux/device.h:576:15: note: declared here
sound/soc/spear/spdif_out.c: In function 'spdif_out_remove':



> ---
>  sound/soc/spear/spdif_in.c  | 17 ++---------------
>  sound/soc/spear/spdif_out.c | 17 +++--------------
>  2 files changed, 5 insertions(+), 29 deletions(-)
> 
> diff --git a/sound/soc/spear/spdif_in.c b/sound/soc/spear/spdif_in.c
> index c7c4b20..d40bb34 100644
> --- a/sound/soc/spear/spdif_in.c
> +++ b/sound/soc/spear/spdif_in.c
> @@ -231,7 +231,7 @@ static int spdif_in_probe(struct platform_device *pdev)
>  	if (host->irq < 0)
>  		return -EINVAL;
>  
> -	host->clk = clk_get(&pdev->dev, NULL);
> +	host->clk = devm_clk_get(&pdev->dev, NULL);
>  	if (IS_ERR(host->clk))
>  		return PTR_ERR(host->clk);
>  
> @@ -253,33 +253,20 @@ static int spdif_in_probe(struct platform_device *pdev)
>  	ret = devm_request_irq(&pdev->dev, host->irq, spdif_in_irq, 0,
>  			"spdif-in", host);
>  	if (ret) {
> -		clk_put(host->clk);
>  		dev_warn(&pdev->dev, "request_irq failed\n");
>  		return ret;
>  	}
>  
> -	ret = snd_soc_register_dai(&pdev->dev, &spdif_in_dai);
> -	if (ret != 0) {
> -		clk_put(host->clk);
> -		return ret;
> -	}
> -
> -	return 0;
> +	return snd_soc_register_dai(&pdev->dev, &spdif_in_dai);
>  }
>  
>  static int spdif_in_remove(struct platform_device *pdev)
>  {
> -	struct spdif_in_dev *host = dev_get_drvdata(&pdev->dev);
> -
>  	snd_soc_unregister_dai(&pdev->dev);
> -	dev_set_drvdata(&pdev->dev, NULL);
> -
> -	clk_put(host->clk);
>  
>  	return 0;
>  }
>  
> -
>  static struct platform_driver spdif_in_driver = {
>  	.probe		= spdif_in_probe,
>  	.remove		= spdif_in_remove,
> diff --git a/sound/soc/spear/spdif_out.c b/sound/soc/spear/spdif_out.c
> index 5eac4cd..b2488b4 100644
> --- a/sound/soc/spear/spdif_out.c
> +++ b/sound/soc/spear/spdif_out.c
> @@ -293,14 +293,14 @@ static int spdif_out_probe(struct platform_device *pdev)
>  		return -ENOMEM;
>  	}
>  
> -	host->io_base = devm_ioremap(&pdev->dev, res->start,
> +	host->io_base = devm_request_and_ioremap(&pdev->dev, res->start,
>  				resource_size(res));
>  	if (!host->io_base) {
>  		dev_warn(&pdev->dev, "ioremap failed\n");
>  		return -ENOMEM;
>  	}
>  
> -	host->clk = clk_get(&pdev->dev, NULL);
> +	host->clk = devm_clk_get(&pdev->dev, NULL);
>  	if (IS_ERR(host->clk))
>  		return PTR_ERR(host->clk);
>  
> @@ -314,23 +314,12 @@ static int spdif_out_probe(struct platform_device *pdev)
>  
>  	dev_set_drvdata(&pdev->dev, host);
>  
> -	ret = snd_soc_register_dai(&pdev->dev, &spdif_out_dai);
> -	if (ret != 0) {
> -		clk_put(host->clk);
> -		return ret;
> -	}
> -
> -	return 0;
> +	return snd_soc_register_dai(&pdev->dev, &spdif_out_dai);
>  }
>  
>  static int spdif_out_remove(struct platform_device *pdev)
>  {
> -	struct spdif_out_dev *host = dev_get_drvdata(&pdev->dev);
> -
>  	snd_soc_unregister_dai(&pdev->dev);
> -	dev_set_drvdata(&pdev->dev, NULL);
> -
> -	clk_put(host->clk);
>  
>  	return 0;
>  }