diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_psr.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_psr.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c index b7cc6dd45c9e..1f77633fe809 100644 --- a/drivers/gpu/drm/i915/intel_psr.c +++ b/drivers/gpu/drm/i915/intel_psr.c @@ -508,6 +508,11 @@ void intel_psr_compute_config(struct intel_dp *intel_dp, return; } + if (!(intel_dp->edp_dpcd[1] & DP_EDP_SET_POWER_CAP)) { + DRM_DEBUG_KMS("PSR condition failed: panel lacks power state control\n"); + return; + } + /* * FIXME psr2_support is messed up. It's both computed * dynamically during PSR enable, and extracted from sink |