diff options
| author | Sankeerth Billakanti <quic_sbillaka@quicinc.com> | 2022-04-25 14:44:32 +0300 |
|---|---|---|
| committer | Dmitry Baryshkov <dmitry.baryshkov@linaro.org> | 2022-05-02 02:39:34 +0300 |
| commit | 3bc965f15e96b51c7e683eaf72e93a2dc6dac471 (patch) | |
| tree | 5ec8ca3021d6570b6bace8ac43c6f13f3cda1301 /drivers/gpu/drm/msm/dp/dp_display.c | |
| parent | 86d56a770442be550ef0d1c90dec5272e1745d93 (diff) | |
| download | linux-3bc965f15e96b51c7e683eaf72e93a2dc6dac471.tar.xz | |
drm/msm/dp: Support the eDP modes given by panel
The eDP controller does not have a reliable way keep panel
powered on to read the sink capabilities. So, the controller
driver cannot validate if a mode can be supported by the
source. We will rely on the panel driver to populate only
the supported modes for now.
Signed-off-by: Sankeerth Billakanti <quic_sbillaka@quicinc.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Patchwork: https://patchwork.freedesktop.org/patch/483313/
Link: https://lore.kernel.org/r/1650887072-16652-5-git-send-email-quic_sbillaka@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Diffstat (limited to 'drivers/gpu/drm/msm/dp/dp_display.c')
| -rw-r--r-- | drivers/gpu/drm/msm/dp/dp_display.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c index 0e52c0ab2174..c38832304353 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -980,6 +980,14 @@ enum drm_mode_status dp_bridge_mode_valid(struct drm_bridge *bridge, return -EINVAL; } + /* + * The eDP controller currently does not have a reliable way of + * enabling panel power to read sink capabilities. So, we rely + * on the panel driver to populate only supported modes for now. + */ + if (dp->is_edp) + return MODE_OK; + if (mode->clock > DP_MAX_PIXEL_CLK_KHZ) return MODE_BAD; |