[RFC,28/60] drm/i915/dg1: DG1 does not support DC6
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Message ID 20200710115757.290984-29-matthew.auld@intel.com
State New
Headers show
Series
  • DG1 LMEM enabling
Related show

Commit Message

Matthew Auld July 10, 2020, 11:57 a.m. UTC
From: Anshuman Gupta <anshuman.gupta@intel.com>

DC6 is not supported on DG1, so change the allowed DC mask for DG1.

Cc: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
---
 drivers/gpu/drm/i915/display/intel_display_power.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

Patch
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diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c
index 21f39c94056e..389a0f2d3a14 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power.c
@@ -4689,7 +4689,10 @@  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