If CONFIG_SND_SOC_MT8186=y and CONFIG_SND_SOC_MT6358 is not set,
make ARCH=x86_64 CROSS_COMPILE=x86_64-linux-gnu-, will be failed, like this:

sound/soc/mediatek/mt8186/mt8186-mt6366-common.o: In function `mt8186_mt6366_init':
mt8186-mt6366-common.c:(.text+0x4d): undefined reference to `mt6358_set_mtkaif_protocol'
make: *** [vmlinux] Error 1

To fix this build error, add select SND_SOC_MT6358 to config SND_SOC_MT8186 dependency.

Fixes: 097e874ad3fc ("ASoC: mediatek: mt8186: add platform driver")
Signed-off-by: Ren Zhijie <renzhijie2@huawei.com>
---
 sound/soc/mediatek/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/mediatek/Kconfig b/sound/soc/mediatek/Kconfig
index 96917743b0db..363fa4d47680 100644
--- a/sound/soc/mediatek/Kconfig
+++ b/sound/soc/mediatek/Kconfig
@@ -157,6 +157,7 @@ config SND_SOC_MT8186
 	depends on ARCH_MEDIATEK || COMPILE_TEST
 	depends on COMMON_CLK
 	select SND_SOC_MEDIATEK
+	select SND_SOC_MT6358
 	select MFD_SYSCON if SND_SOC_MT6358
 	help
 	  This adds ASoC driver for Mediatek MT8186 boards
-- 
2.17.1

On Sun, 24 Jul 2022 19:06:19 +0800, Ren Zhijie wrote:
> If CONFIG_SND_SOC_MT8186=y and CONFIG_SND_SOC_MT6358 is not set,
> make ARCH=x86_64 CROSS_COMPILE=x86_64-linux-gnu-, will be failed, like this:
> 
> sound/soc/mediatek/mt8186/mt8186-mt6366-common.o: In function `mt8186_mt6366_init':
> mt8186-mt6366-common.c:(.text+0x4d): undefined reference to `mt6358_set_mtkaif_protocol'
> make: *** [vmlinux] Error 1
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/1] ASoC: mediatek: mt8186: fix Kconfig dependency
      commit: f20d5116b7f3d8d40e1248a59be89e667eaabd62

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark