Display WA_1405510057 asks to not enable YUV 420 HDMI
10bpc when horizontal blank size mod 8 reminder is 2.
Cc: James Ausmus <james.aus...@intel.com>
Cc: Paulo Zanoni <paulo.r.zan...@intel.com>
Cc: Rodrigo Vivi <rodrigo.v...@intel.com>
Cc: Ville Syrjälä <ville.syrj...@linux.intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.srip...@intel.com>
---
drivers/gpu/drm/i915/intel_hdmi.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c
b/drivers/gpu/drm/i915/intel_hdmi.c
index a2dab0b6bde6..569583232d0b 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -1597,6 +1597,8 @@ static bool hdmi_deep_color_possible(const struct
intel_crtc_state *crtc_state,
struct drm_atomic_state *state = crtc_state->base.state;
struct drm_connector_state *connector_state;
struct drm_connector *connector;
+ const struct drm_display_mode *adjusted_mode =
+ &crtc_state->base.adjusted_mode;
int i;
if (HAS_GMCH_DISPLAY(dev_priv))
@@ -1645,7 +1647,13 @@ static bool hdmi_deep_color_possible(const struct
intel_crtc_state *crtc_state,
/* Display WA #1139: glk */
if (bpc == 12 && IS_GLK_REVID(dev_priv, 0, GLK_REVID_A1) &&
- crtc_state->base.adjusted_mode.htotal > 5460)
+ adjusted_mode->htotal > 5460)
+ return false;
+
+ /* Display Wa_1405510057:icl */
+ if (crtc_state->ycbcr420 && bpc == 10 && IS_ICELAKE(dev_priv) &&
+ (adjusted_mode->crtc_hblank_end -
+ adjusted_mode->crtc_hblank_start) % 8 == 2)
return false;
return true;
--
2.9.3
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