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    Subject[PATCH 5.10 146/563] drm/msm/dp: displayPort driver need algorithm rational
    Date
    From: Jackie Liu <liuyun01@kylinos.cn>

    [ 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>
    ---
    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 dabb4a1ccdcf7..1aad34b5ffd7f 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
    --
    2.34.1


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