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drm/i915/psr: Fix the delayed vblank w/a

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Fix the code to correctly determine whether delayed vblank
is used or not.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230127173044.24108-3-ville.syrjala@linux.intel.com
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
This commit is contained in:
Ville Syrjälä 2023-01-27 19:30:42 +02:00
parent d34b4288bd
commit 30c35a4ba9
1 changed files with 2 additions and 7 deletions
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9
drivers/gpu/drm/i915/display/intel_psr.c
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@ -1178,13 +1178,8 @@ static void intel_psr_enable_source(struct intel_dp *intel_dp,
*/
if (IS_MTL_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B0) ||
IS_DISPLAY_VER(dev_priv, 12, 13)) {
u16 vtotal, vblank;
vtotal = crtc_state->uapi.adjusted_mode.crtc_vtotal -
crtc_state->uapi.adjusted_mode.crtc_vdisplay;
vblank = crtc_state->uapi.adjusted_mode.crtc_vblank_end -
crtc_state->uapi.adjusted_mode.crtc_vblank_start;
if (vblank > vtotal)
if (crtc_state->hw.adjusted_mode.crtc_vblank_start !=
crtc_state->hw.adjusted_mode.crtc_vdisplay)
intel_de_rmw(dev_priv, GEN8_CHICKEN_DCPR_1, 0,
wa_16013835468_bit_get(intel_dp));
}