From: Arnd Bergmann <arnd@xxxxxxxx> After my fix yesterday, I ran into another problem of the same kind: aarch64-linux-ld: drivers/gpu/drm/bridge/analogix/analogix_dp_core.o: in function `drm_dp_dpcd_readb': analogix_dp_core.c:(.text+0x194): undefined reference to `drm_dp_dpcd_read' aarch64-linux-ld: drivers/gpu/drm/bridge/analogix/analogix_dp_core.o: in function `drm_dp_dpcd_writeb': analogix_dp_core.c:(.text+0x214): undefined reference to `drm_dp_dpcd_write' aarch64-linux-ld: drivers/gpu/drm/bridge/analogix/analogix_dp_core.o: in function `analogix_dp_stop_crc': analogix_dp_core.c:(.text+0x4b0): undefined reference to `drm_dp_stop_crc' aarch64-linux-ld: drivers/gpu/drm/bridge/analogix/analogix_dp_core.o: in function `analogix_dp_start_crc': analogix_dp_core.c:(.text+0xbe8): undefined reference to `drm_dp_start_crc' Add the same dependency again to ROCKCHIP_ANALOGIX_DP after checking that nothing else selects the analogix driver. Also add a dependency to DRM_ANALOGIX_DP to make it easier to identifier future problems of this type when they get introduced. Fixes: 0323287de87d ("drm: Switch DRM_DISPLAY_DP_HELPER to depends on") Fixes: d1ef8fc18be6 ("drm: fix DRM_DISPLAY_DP_HELPER dependencies") Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> --- drivers/gpu/drm/bridge/analogix/Kconfig | 2 +- drivers/gpu/drm/rockchip/Kconfig | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/bridge/analogix/Kconfig b/drivers/gpu/drm/bridge/analogix/Kconfig index 12bfea53bf24..5b564fded6d6 100644 --- a/drivers/gpu/drm/bridge/analogix/Kconfig +++ b/drivers/gpu/drm/bridge/analogix/Kconfig @@ -28,7 +28,7 @@ config DRM_ANALOGIX_ANX78XX config DRM_ANALOGIX_DP tristate - depends on DRM + depends on DRM_DISPLAY_HELPER config DRM_ANALOGIX_ANX7625 tristate "Analogix Anx7625 MIPI to DP interface support" diff --git a/drivers/gpu/drm/rockchip/Kconfig b/drivers/gpu/drm/rockchip/Kconfig index 4b4ad75032fd..4c7072e6e34e 100644 --- a/drivers/gpu/drm/rockchip/Kconfig +++ b/drivers/gpu/drm/rockchip/Kconfig @@ -36,7 +36,7 @@ config ROCKCHIP_VOP2 config ROCKCHIP_ANALOGIX_DP bool "Rockchip specific extensions for Analogix DP driver" depends on DRM_DISPLAY_DP_HELPER - depends on DRM_DISPLAY_HELPER + depends on DRM_DISPLAY_HELPER=y || (DRM_DISPLAY_HELPER=m && DRM_ROCKCHIP=m) depends on ROCKCHIP_VOP help This selects support for Rockchip SoC specific extensions -- 2.39.2