[PATCH] drm/rockchip: add CONFIG_OF dependency

[Arnd Bergmann <arnd@kernel.org>]

From: Arnd Bergmann <arnd@arndb.de>

DRM_DISPLAY_DP_AUX_BUS cannot be selected when CONFIG_OF is disabled:

WARNING: unmet direct dependencies detected for DRM_DISPLAY_DP_AUX_BUS
  Depends on [n]: HAS_IOMEM [=y] && DRM [=y] && OF [=n]
  Selected by [y]:
  - DRM_ROCKCHIP [=y] && HAS_IOMEM [=y] && DRM [=y] && ROCKCHIP_IOMMU [=y] && ROCKCHIP_ANALOGIX_DP [=y]

Rockchip platforms all depend on OF anyway, so add the dependency here
for compile testing.

Fixes: d7b4936b2bc0 ("drm/rockchip: analogix_dp: Add support to get panel from the DP AUX bus")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/gpu/drm/rockchip/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/rockchip/Kconfig b/drivers/gpu/drm/rockchip/Kconfig
index caa251f91dd8..6b9f43c05148 100644
--- a/drivers/gpu/drm/rockchip/Kconfig
+++ b/drivers/gpu/drm/rockchip/Kconfig
@@ -2,6 +2,7 @@
 config DRM_ROCKCHIP
 	tristate "DRM Support for Rockchip"
 	depends on DRM && ROCKCHIP_IOMMU
+	depends on OF
 	select DRM_CLIENT_SELECTION
 	select DRM_GEM_DMA_HELPER
 	select DRM_KMS_HELPER
-- 
2.39.5