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[Deepin-Kernel-SIG] [linux 6.6-y] [Upstream] [Intel] drm/i915/display: correct dual pps handling for MTL_PCH+ #843

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Merged
Avenger-285714 merged 1 commit into from
Jun 3, 2025
Merged

[Deepin-Kernel-SIG] [linux 6.6-y] [Upstream] [Intel] drm/i915/display: correct dual pps handling for MTL_PCH+ #843

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3 changes: 3 additions & 0 deletions drivers/gpu/drm/i915/display/intel_backlight.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1448,6 +1448,9 @@ bxt_setup_backlight(struct intel_connector *connector, enum pipe unused)

static int cnp_num_backlight_controllers(struct drm_i915_private *i915)
{
if (INTEL_PCH_TYPE(i915) >= PCH_MTL)
return 2;

if (INTEL_PCH_TYPE(i915) >= PCH_DG1)
return 1;

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3 changes: 3 additions & 0 deletions drivers/gpu/drm/i915/display/intel_pps.c
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Original file line number Diff line number Diff line change
Expand Up @@ -351,6 +351,9 @@ static int intel_num_pps(struct drm_i915_private *i915)
if (IS_GEMINILAKE(i915) || IS_BROXTON(i915))
return 2;

if (INTEL_PCH_TYPE(i915) >= PCH_MTL)
return 2;

if (INTEL_PCH_TYPE(i915) >= PCH_DG1)
return 1;

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