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| author | José Roberto de Souza | 2018-06-26 22:16:41 +0200 |
|---|---|---|
| committer | Dhinakaran Pandiyan | 2018-06-27 02:11:35 +0200 |
| commit | cc3054ff6214f6d14d35ffe629ff8d5032ace7f7 (patch) | |
| tree | bdde2cc24d694910e7727870bbadc32f6bdcfbcd /drivers/gpu/drm/i915/intel_dp.c | |
| parent | drm/i915/psr: Remove intel_crtc_state parameter from disable_source() (diff) | |
| download | kernel-qcow2-linux-cc3054ff6214f6d14d35ffe629ff8d5032ace7f7.tar.gz kernel-qcow2-linux-cc3054ff6214f6d14d35ffe629ff8d5032ace7f7.tar.xz kernel-qcow2-linux-cc3054ff6214f6d14d35ffe629ff8d5032ace7f7.zip | |
drm/i915/psr: Begin to handle PSR/PSR2 errors set by sink
eDP spec states that sink device will do a short pulse in HPD
line when there is a PSR/PSR2 error that needs to be handled by
source, this is handling the first and most simples error:
DP_PSR_SINK_INTERNAL_ERROR.
Here taking the safest approach and disabling PSR(at least until
the next modeset), to avoid multiple rendering issues due to
bad pannels.
v5:
added lockdep_assert in psr_disable and renamed psr_disable()
to intel_psr_disable_locked()
v4:
Using CAN_PSR instead of HAS_PSR in intel_psr_short_pulse
v3:
disabling PSR instead of exiting on error
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180626201644.21932-2-jose.souza@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index c1b2f00f324b..5be07e1d816d 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -4491,6 +4491,8 @@ intel_dp_short_pulse(struct intel_dp *intel_dp) if (intel_dp_needs_link_retrain(intel_dp)) return false; + intel_psr_short_pulse(intel_dp); + if (intel_dp->compliance.test_type == DP_TEST_LINK_TRAINING) { DRM_DEBUG_KMS("Link Training Compliance Test requested\n"); /* Send a Hotplug Uevent to userspace to start modeset */ |