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-rw-r--r--drivers/gpu/drm/i915/display/intel_display_power.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c
index 18af078c208b..45806cfc679a 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power.c
@@ -4492,7 +4492,10 @@ static u32 get_allowed_dc_mask(const struct drm_i915_private *dev_priv,
int max_dc;
if (INTEL_GEN(dev_priv) >= 12) {
- max_dc = 4;
+ if (IS_DG1(dev_priv))
+ max_dc = 3;
+ else
+ max_dc = 4;
/*
* DC9 has a separate HW flow from the rest of the DC states,
* not depending on the DMC firmware. It's needed by system