When the reset controller subsystem is disabled, this driver
fails to build:

drivers/gpu/drm/rockchip/rockchip_drm_vop.c: In function 'vop_initial':
drivers/gpu/drm/rockchip/rockchip_drm_vop.c:1267:2: error: implicit declaration 
of function 'devm_reset_control_get' [-Werror=implicit-function-declaration]

The easiest solution is to add a dependency in Kconfig to avoid
that case.

Signed-off-by: Arnd Bergmann <arnd at 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 cb21e3821244..35215f6867d3 100644
--- a/drivers/gpu/drm/rockchip/Kconfig
+++ b/drivers/gpu/drm/rockchip/Kconfig
@@ -1,6 +1,7 @@
 config DRM_ROCKCHIP
        tristate "DRM Support for Rockchip"
        depends on DRM && ROCKCHIP_IOMMU
+       depends on RESET_CONTROLLER
        select DRM_KMS_HELPER
        select DRM_KMS_FB_HELPER
        select DRM_PANEL
-- 
2.1.0.rc2

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