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@xxxxxxxxxxxx>
> Reviewed-by: Stephen Warren <swarren@xxxxxxxxxx>
> Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
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.
>
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