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drm/i915/cnp: Document WaSouthDisplayDisablePWMCGEGating
author
Rodrigo Vivi
<rodrigo.vivi@intel.com>
Tue, 6 Mar 2018 01:28:12 +0000
(17:28 -0800)
committer
Rodrigo Vivi
<rodrigo.vivi@intel.com>
Tue, 6 Mar 2018 22:41:27 +0000
(14:41 -0800)
No functional change since WA is already applied.
But since it has different names on different databases,
let's document it here to avoid future confusion.
Cc: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link:
https://patchwork.freedesktop.org/patch/msgid/20180306012812.19779-1-rodrigo.vivi@intel.com
drivers/gpu/drm/i915/intel_pm.c
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diff --git
a/drivers/gpu/drm/i915/intel_pm.c
b/drivers/gpu/drm/i915/intel_pm.c
index
1ed1abb
..
6cab20c
100644
(file)
--- a/
drivers/gpu/drm/i915/intel_pm.c
+++ b/
drivers/gpu/drm/i915/intel_pm.c
@@
-8492,7
+8492,7
@@
static void cnp_init_clock_gating(struct drm_i915_private *dev_priv)
if (!HAS_PCH_CNP(dev_priv))
return;
- /* Display WA #1181: cnp */
+ /* Display WA #1181
WaSouthDisplayDisablePWMCGEGating
: cnp */
I915_WRITE(SOUTH_DSPCLK_GATE_D, I915_READ(SOUTH_DSPCLK_GATE_D) |
CNP_PWM_CGE_GATING_DISABLE);
}