From: Jackie Liu <liuyun01@kylinos.cn> stable inclusion from stable-v5.10.94 commit 027165c491e49109c75bbb7bc877a2f83583754d bugzilla: https://gitee.com/openeuler/kernel/issues/I531X9 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=... -------------------------------- [ Upstream commit 53d22794711ad630f40d59dd726bd260d77d585f ] Let's select RATIONAL with dp driver. avoid like: [...] x86_64-linux-gnu-ld: drivers/gpu/drm/msm/dp/dp_catalog.o: in function `dp_catalog_ctrl_config_msa': dp_catalog.c:(.text+0x57e): undefined reference to `rational_best_approximation' Fixes: c943b4948b58 ("drm/msm/dp: add displayPort driver support") Reported-by: kernelbot <kernel-bot@kylinos.cn> Signed-off-by: Jackie Liu <liuyun01@kylinos.cn> Link: https://lore.kernel.org/r/20211110070950.3355597-2-liu.yun@linux.dev Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Rob Clark <robdclark@chromium.org> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> Acked-by: Xie XiuQi <xiexiuqi@huawei.com> --- drivers/gpu/drm/msm/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/msm/Kconfig b/drivers/gpu/drm/msm/Kconfig index dabb4a1ccdcf..1aad34b5ffd7 100644 --- a/drivers/gpu/drm/msm/Kconfig +++ b/drivers/gpu/drm/msm/Kconfig @@ -60,6 +60,7 @@ config DRM_MSM_HDMI_HDCP config DRM_MSM_DP bool "Enable DisplayPort support in MSM DRM driver" depends on DRM_MSM + select RATIONAL default y help Compile in support for DP driver in MSM DRM driver. DP external -- 2.20.1