On Mon, Feb 10, 2014 at 11:09:19PM +0100, Paul Bolle wrote:
See, if you scan v3.10:arch/arm/mach-exynos/mach-smdkv310.c you'll notice the string "smdk-audio". If you grep that string you get a few hits. But none in v3.10:sound/soc/samsung/smdk_wm9713.c. And if you scan v3.10:sound/soc/samsung/smdk_wm9713.c for strings you'll find stuff like "wm9713-hifi", "wm9713-codec", and "soc-audio". But these don't show up in v3.10:arch/arm/mach-exynos/mach-smdkv310.c. So it's not obvious how these two files relate.
And I'm left wondering why SND_SOC_SAMSUNG_SMDK_WM9713 actually depends on (among other symbols) MACH_SMDKV310 and MACH_SMDKC210 in v3.10.
The hardware is physically present on those boards but must be selected with DIP switches, the device registration needs to be changed in the kernel when that happens (as the DT must be when it is in use).