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| author | Kuogee Hsieh <quic_khsieh@quicinc.com> | 2022-04-26 20:58:58 +0300 |
|---|---|---|
| committer | Dmitry Baryshkov <dmitry.baryshkov@linaro.org> | 2022-05-02 02:39:34 +0300 |
| commit | 581d69981159b00f0443d171a4b900089f34ccfe (patch) | |
| tree | 7ba7dca022ddb1f9119c66bf0366bba7e4320e7b /drivers/gpu/drm | |
| parent | 3bc965f15e96b51c7e683eaf72e93a2dc6dac471 (diff) | |
| download | linux-581d69981159b00f0443d171a4b900089f34ccfe.tar.xz | |
drm/msm/dp: reset DP controller before transmit phy test pattern
DP controller state can not switch from video ready state to
transmit phy pattern state at run time. DP mainlink has to be
teared down followed by reset controller to default state to have
DP controller switch to transmit phy test pattern state and start
generate specified phy test pattern to sinker once main link setup
again.
Changes in v2:
-- correct Fixes's commit id
Fixes: 52352fe2f866 ("drm/msm/dp: use dp_ctrl_off_link_stream during PHY compliance test run")
Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Patchwork: https://patchwork.freedesktop.org/patch/483563/
Link: https://lore.kernel.org/r/1650995939-28467-2-git-send-email-quic_khsieh@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/msm/dp/dp_ctrl.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.c b/drivers/gpu/drm/msm/dp/dp_ctrl.c index 7b18f331829c..a33f4557e47f 100644 --- a/drivers/gpu/drm/msm/dp/dp_ctrl.c +++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c @@ -1543,7 +1543,7 @@ static int dp_ctrl_process_phy_test_request(struct dp_ctrl_private *ctrl) * running. Add the global reset just before disabling the * link clocks and core clocks. */ - ret = dp_ctrl_off_link_stream(&ctrl->dp_ctrl); + ret = dp_ctrl_off(&ctrl->dp_ctrl); if (ret) { DRM_ERROR("failed to disable DP controller\n"); return ret; |