COMMON_CLK is a user-selectable option with its own dependencies. The most important dependency is !HAVE_LEGACY_CLK. User-selectable drivers should not select COMMON_CLK because they will create a dependency cycle and build failures. For example on MIPS a configuration with COMMON_CLK (selected by SND_SUN8I_CODEC) and HAVE_LEGACY_CLK (selected by SOC_RT305X) is possible:
WARNING: unmet direct dependencies detected for COMMON_CLK Depends on [n]: !HAVE_LEGACY_CLK [=y] Selected by [y]: - SND_SUN8I_CODEC [=y] && SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && (ARCH_SUNXI || COMPILE_TEST [=y]) && OF [=y] && (MACH_SUN8I || ARM64 && ARCH_SUNXI || COMPILE_TEST [=y])
/usr/bin/mips-linux-gnu-ld: drivers/clk/clk.o: in function `clk_set_rate': (.text+0xaeb4): multiple definition of `clk_set_rate'; arch/mips/ralink/clk.o:(.text+0x88): first defined here
Signed-off-by: Krzysztof Kozlowski krzk@kernel.org Reviewed-by: Samuel Holland samuel@sholland.org
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Changes since v1: 1. Do not select COMMON_CLK in arch/arm/mach-sunxi/Kconfig, 2. Add Samuel's review. --- sound/soc/sunxi/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/sunxi/Kconfig b/sound/soc/sunxi/Kconfig index 69b9d8515335..ddcaaa98d3cb 100644 --- a/sound/soc/sunxi/Kconfig +++ b/sound/soc/sunxi/Kconfig @@ -14,7 +14,7 @@ config SND_SUN8I_CODEC tristate "Allwinner SUN8I audio codec" depends on OF depends on MACH_SUN8I || (ARM64 && ARCH_SUNXI) || COMPILE_TEST - select COMMON_CLK + depends on COMMON_CLK select REGMAP_MMIO help This option enables the digital part of the internal audio codec for