drm/msm/dp: make dp_bridge_mode_valid() more precise

Make dp_connector_mode_valid() return precise MODE_CLOCK_HIGH rather
than generic MODE_BAD in case the mode clock is higher than
DP_MAX_PIXEL_CLK_KHZ (675 MHz).

Reviewed-by: Kuogee Hsieh<quic_khsieh@quicinc.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/489554/
Link: https://lore.kernel.org/r/20220615115920.6768-1-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index 239c8e3..c234295 100644 (file)
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -992,7 +992,7 @@ enum drm_mode_status dp_bridge_mode_valid(struct drm_bridge *bridge,
                return MODE_OK;
 
        if (mode->clock > DP_MAX_PIXEL_CLK_KHZ)
-               return MODE_BAD;
+               return MODE_CLOCK_HIGH;
 
        dp_display = container_of(dp, struct dp_display_private, dp_display);
        link_info = &dp_display->panel->link_info;