[alsa-devel] [PATCH] ALSA: hda: fix tegra build

[Takashi Iwai]

At Mon, 26 May 2014 18:14:21 +0200,
Arnd Bergmann wrote:
> 
> When CONFIG_PM is disabled, the CONFIG_SND_HDA_POWER_SAVE_DEFAULT symbol
> does not get defined, which causes a build error for the hda-tegra driver:
> 
> hda/hda_tegra.c:80:25: error: 'CONFIG_SND_HDA_POWER_SAVE_DEFAULT' undeclared here (not in a function)
>  static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
>                          ^
> /git/arm-soc/sound/pci/hda/hda_tegra.c:235:13: warning: 'hda_tegra_disable_clocks' defined but not used [-Wunused-function]
>  static void hda_tegra_disable_clocks(struct hda_tegra *data)
>              ^
> 
> This works around the problem by not referencing that macro
> when CONFIG_PM is disabled. Instead, we assume that it's disabled
> unconditionally and cannot be enabled at runtime.
> 
> Signed-off-by: Dylan Reid <dgreid at chromium.org>
> Reviewed-by: Stephen Warren <swarren at nvidia.com>
> Signed-off-by: Takashi Iwai <tiwai at suse.de>

Oh, you cloned me?


Takashi


> diff --git a/sound/pci/hda/hda_tegra.c b/sound/pci/hda/hda_tegra.c
> index 086fd06..a366ba9 100644
> --- a/sound/pci/hda/hda_tegra.c
> +++ b/sound/pci/hda/hda_tegra.c
> @@ -77,10 +77,14 @@ struct hda_tegra {
>  	void __iomem *regs;
>  };
>  
> +#ifdef CONFIG_PM
>  static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
>  module_param(power_save, bint, 0644);
>  MODULE_PARM_DESC(power_save,
>  		 "Automatic power-saving timeout (in seconds, 0 = disable).");
> +#else
> +static int power_save = 0;
> +#endif
>  
>  /*
>   * DMA page allocation ops.
>