On 05/19/2015 03:47 PM, Arnd Bergmann wrote:
> I tried to fix this before and submitted a working patch, but after
> some discussion we came up with what seemed to be a nicer solution,
> resulting in commit 3d4cf65e2d ("ASoC: omap: fix up
> SND_OMAP_SOC_OMAP_ABE_TWL6040 dependency"). Unfortunately, that
> version was incomplete, and we still get this build error:
>
> drivers/clk/clk-palmas.c:46:16: error: field 'hw' has incomplete type
> drivers/clk/clk-palmas.c: In function 'to_palmas_clks_info':
> drivers/clk/clk-palmas.c:54:74: warning: initialization from incompatible pointer type [-Winc
>
> This happens only in randconfig builds that turn on MFD_PALMAS
> on a platform other than OMAP2+ when COMPILE_TEST is set
> but COMMON_CLK is not.
>
> The new approach is only 'select COMMON_CLK_PALMAS' if we know
> that we are on an OMAP5 platform and MFD_PALMAS is already set.
> This patch has survived thousands of randconfig builds and I
> don't see a remaining hole in the logic.
Yeah, debugging Kconfig is not for the faint-hearted ;)
Acked-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> Fixes: 3d4cf65e2d ("ASoC: omap: fix up SND_OMAP_SOC_OMAP_ABE_TWL6040 dependency")
>
> diff --git a/sound/soc/omap/Kconfig b/sound/soc/omap/Kconfig
> index 6768e4f7d7d0..30d0109703a9 100644
> --- a/sound/soc/omap/Kconfig
> +++ b/sound/soc/omap/Kconfig
> @@ -100,12 +100,13 @@ config SND_OMAP_SOC_OMAP_TWL4030
>
> config SND_OMAP_SOC_OMAP_ABE_TWL6040
> tristate "SoC Audio support for OMAP boards using ABE and twl6040 codec"
> - depends on TWL6040_CORE && SND_OMAP_SOC && (ARCH_OMAP4 || SOC_OMAP5 || COMPILE_TEST)
> + depends on TWL6040_CORE && SND_OMAP_SOC
> + depends on ARCH_OMAP4 || (SOC_OMAP5 && MFD_PALMAS) || COMPILE_TEST
> select SND_OMAP_SOC_DMIC
> select SND_OMAP_SOC_MCPDM
> select SND_SOC_TWL6040
> select SND_SOC_DMIC
> - select COMMON_CLK_PALMAS if MFD_PALMAS
> + select COMMON_CLK_PALMAS if (SOC_OMAP5 && MFD_PALMAS)
> help
> Say Y if you want to add support for SoC audio on OMAP boards using
> ABE and twl6040 codec. This driver currently supports:
>
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