diff options
| author | Lee Shawn C <[email protected]> | 2021-07-06 23:25:41 +0800 |
|---|---|---|
| committer | Jani Nikula <[email protected]> | 2021-09-14 10:56:32 +0300 |
| commit | 9af4bf2171c1a9e3f2ebb21140c0e34e60b2a22a (patch) | |
| tree | 485d07083d719a142dffe7c47e9deb8fded5fc01 | |
| parent | 6880fa6c56601bb8ed59df6c30fd390cc5f6dd8f (diff) | |
drm/i915/dp: return proper DPRX link training result
After DPRX link training, intel_dp_link_train_phy() did not
return the training result properly. If link training failed,
i915 driver would not run into link train fallback function.
And no hotplug uevent would be received by user space application.
Fixes: b30edfd8d0b4 ("drm/i915: Switch to LTTPR non-transparent mode link training")
Cc: Ville Syrjala <[email protected]>
Cc: Imre Deak <[email protected]>
Cc: Jani Nikula <[email protected]>
Cc: Cooper Chiou <[email protected]>
Cc: William Tseng <[email protected]>
Signed-off-by: Lee Shawn C <[email protected]>
Reviewed-by: Imre Deak <[email protected]>
Signed-off-by: Imre Deak <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit dab1b47e57e053b2a02c22ead8e7449f79961335)
Signed-off-by: Jani Nikula <[email protected]>
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp_link_training.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c index 053a3c2f7267..508a514c5e37 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c @@ -848,7 +848,7 @@ intel_dp_link_train_all_phys(struct intel_dp *intel_dp, } if (ret) - intel_dp_link_train_phy(intel_dp, crtc_state, DP_PHY_DPRX); + ret = intel_dp_link_train_phy(intel_dp, crtc_state, DP_PHY_DPRX); if (intel_dp->set_idle_link_train) intel_dp->set_idle_link_train(intel_dp, crtc_state); |