diff options
| author | Lee Shawn C <shawn.c.lee@intel.com> | 2021-07-06 18:25:41 +0300 |
|---|---|---|
| committer | Imre Deak <imre.deak@intel.com> | 2021-08-18 19:08:20 +0300 |
| commit | dab1b47e57e053b2a02c22ead8e7449f79961335 (patch) | |
| tree | 1ffece7b0e45cfa7958b0deb8b86af69a39d392a /drivers/gpu/drm | |
| parent | bbaafe536c840d962870d33572d3d5f9051550f3 (diff) | |
| download | linux-dab1b47e57e053b2a02c22ead8e7449f79961335.tar.xz | |
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 <ville.syrjala@linux.intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Cooper Chiou <cooper.chiou@intel.com>
Cc: William Tseng <william.tseng@intel.com>
Signed-off-by: Lee Shawn C <shawn.c.lee@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210706152541.25021-1-shawn.c.lee@intel.com
Diffstat (limited to 'drivers/gpu/drm')
| -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); |