[PATCH] drm/imx: depend on COMMON_CLK to fix compile tests

[Krzysztof Kozlowski <krzk@kernel.org>]

The iMX DRM drivers use Common Clock Framework thus they cannot be built
on platforms without it (e.g. compile test on MIPS with RALINK and
SOC_RT305X):

    /usr/bin/mips-linux-gnu-ld: drivers/gpu/drm/imx/imx-ldb.o: in function `imx_ldb_encoder_disable':
    imx-ldb.c:(.text+0x400): undefined reference to `clk_set_parent'

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
---
 drivers/gpu/drm/imx/Kconfig | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/imx/Kconfig b/drivers/gpu/drm/imx/Kconfig
index 6231048aa5aa..65f9ef625337 100644
--- a/drivers/gpu/drm/imx/Kconfig
+++ b/drivers/gpu/drm/imx/Kconfig
@@ -5,7 +5,8 @@ config DRM_IMX
 	select VIDEOMODE_HELPERS
 	select DRM_GEM_CMA_HELPER
 	select DRM_KMS_CMA_HELPER
-	depends on DRM && (ARCH_MXC || ARCH_MULTIPLATFORM || COMPILE_TEST)
+	depends on DRM
+	depends on ARCH_MXC || ARCH_MULTIPLATFORM || COMPILE_TEST && COMMON_CLK
 	depends on IMX_IPUV3_CORE
 	help
 	  enable i.MX graphics support
-- 
2.25.1