Update the global dsc flag based on the display capabilities
reported.
v1: define the field values instead of the magic number (JaniN)
Bspec: 71161
Signed-off-by: Vinod Govindapillai <vinod.govindapillai@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_display_device.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_display_device.c b/drivers/gpu/drm/i915/display/intel_display_device.c
index a6a18eae7ae8..2c891fe4d74b 100644
--- a/drivers/gpu/drm/i915/display/intel_display_device.c
+++ b/drivers/gpu/drm/i915/display/intel_display_device.c
@@ -1065,6 +1065,14 @@ void intel_display_device_info_runtime_init(struct drm_i915_private *i915)
display_runtime->has_dsc = 0;
}
+ if (DISPLAY_VER(i915) >= 20) {
+ u32 cap = intel_de_read(i915, XE2LPD_DE_CAP);
+
+ if (REG_FIELD_GET(XE2LPD_DE_CAP_DSC_MASK, cap) ==
+ XE2LPD_DE_CAP_DSC_REMOVED)
+ display_runtime->has_dsc = 0;
+ }
+
return;
display_fused_off:
--
2.34.1
