diff options
| author |   Nagaraju, Vathsala <vathsala.nagaraju@intel.com> | 2017-01-11 20:44:33 +0530 |
|---|---|---|
| committer |   Rodrigo Vivi <rodrigo.vivi@intel.com> | 2017-01-12 16:35:01 -0800 |
| commit | f40c484b78a3f9d4e469a11e7c6047ea6cb6f3b6 (patch) | |
| tree | 3fa4c2718e55677d2ef3ec00defe1b83add4d5e9 /drivers/gpu/drm/i915/intel_psr.c | |
| parent | drm/i915/psr: fix blank screen issue for psr2 (diff) | |
| download | linux-dev-f40c484b78a3f9d4e469a11e7c6047ea6cb6f3b6.tar.xz linux-dev-f40c484b78a3f9d4e469a11e7c6047ea6cb6f3b6.zip | |
drm/i915/psr: disable aux_frame_sync on psr2 exit
Screen freeze observed if AUX_FRAME_SYNC is not disabled
on psr2 exit.AUX_FRAME_SYNC needed for psr2 is enabled during
psr2 entry. It must be disabled on psr2 exit.
v2: rebase
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Jim Bride <jim.bride@linux.intel.com>
Signed-off-by: Vathsala Nagaraju <vathsala.nagaraju@intel.com>
Signed-off-by: Patil Deepti <deepti.patil@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1484147673-2044-1-git-send-email-vathsala.nagaraju@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_psr.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_psr.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c index 882764779520..d57ec780959a 100644 --- a/drivers/gpu/drm/i915/intel_psr.c +++ b/drivers/gpu/drm/i915/intel_psr.c @@ -590,6 +590,11 @@ static void hsw_psr_disable(struct intel_dp *intel_dp) struct drm_i915_private *dev_priv = to_i915(dev); if (dev_priv->psr.active) { + if (dev_priv->psr.aux_frame_sync) + drm_dp_dpcd_writeb(&intel_dp->aux, + DP_SINK_DEVICE_AUX_FRAME_SYNC_CONF, + 0); + if (dev_priv->psr.psr2_support) { I915_WRITE(EDP_PSR2_CTL, I915_READ(EDP_PSR2_CTL) & @@ -728,6 +733,10 @@ static void intel_psr_exit(struct drm_i915_private *dev_priv) return; if (HAS_DDI(dev_priv)) { + if (dev_priv->psr.aux_frame_sync) + drm_dp_dpcd_writeb(&intel_dp->aux, + DP_SINK_DEVICE_AUX_FRAME_SYNC_CONF, + 0); if (dev_priv->psr.psr2_support) { val = I915_READ(EDP_PSR2_CTL); WARN_ON(!(val & EDP_PSR2_ENABLE)); |