[PATCH v8 01/10] drm/i915/psr: Do not enable PSR2 when CMRR is enabled

CMRR is mutually exclusive to PSR2, do not enable PSR2 when CMRR is
enabled.

--v2:
- Restrict selective update config check (Ankit)
- Commit message change

--v3:
- Commit changes

--v4:
- Add check to psr2_config_valid (Jouni)

--v5:
- Correct debug message

--v6:
- Commit message update

Signed-off-by: Mitul Golani <[email protected]>
Reviewed-by: Chaitanya Kumar Borah <[email protected]>
---
 drivers/gpu/drm/i915/display/intel_psr.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 40e3d7095996..410778e73a2d 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -1491,6 +1491,12 @@ static bool intel_psr2_config_valid(struct intel_dp *intel_dp,
 	int crtc_vdisplay = crtc_state->hw.adjusted_mode.crtc_vdisplay;
 	int psr_max_h = 0, psr_max_v = 0, max_bpp = 0;
 
+	if (crtc_state->cmrr.enable) {
+		drm_dbg_kms(display->drm,
+			    "PSR2 cannot be enabled when CMRR is enabled\n");
+		return false;
+	}
+
 	if (!connector->dp.psr_caps.su_support || display->params.enable_psr == 1)
 		return false;
 
-- 
2.48.1