diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_psr.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c index c3c576defc2b..8f2b8b4620bd 100644 --- a/drivers/gpu/drm/i915/display/intel_psr.c +++ b/drivers/gpu/drm/i915/display/intel_psr.c @@ -1243,6 +1243,20 @@ static int intel_psr_entry_setup_frames(struct intel_dp *intel_dp, return entry_setup_frames; } +static bool wake_lines_fit_into_vblank(struct intel_dp *intel_dp, + const struct intel_crtc_state *crtc_state) +{ + int vblank = crtc_state->hw.adjusted_mode.crtc_vblank_end - + crtc_state->hw.adjusted_mode.crtc_vblank_start; + int wake_lines = psr2_block_count_lines(intel_dp); + + /* Vblank >= PSR2_CTL Block Count Number maximum line count */ + if (vblank < wake_lines) + return false; + + return true; +} + static bool intel_psr2_config_valid(struct intel_dp *intel_dp, struct intel_crtc_state *crtc_state) { @@ -1333,9 +1347,7 @@ static bool intel_psr2_config_valid(struct intel_dp *intel_dp, } /* Vblank >= PSR2_CTL Block Count Number maximum line count */ - if (crtc_state->hw.adjusted_mode.crtc_vblank_end - - crtc_state->hw.adjusted_mode.crtc_vblank_start < - psr2_block_count_lines(intel_dp)) { + if (!wake_lines_fit_into_vblank(intel_dp, crtc_state)) { drm_dbg_kms(&dev_priv->drm, "PSR2 not enabled, too short vblank time\n"); return false; |