drm/i915/cnp: Document WaSouthDisplayDisablePWMCGEGating

rodrigovivi · rodrigovivi · commit 470e7c6189db · 2018-03-06T14:41:27.000-08:00
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
diff --git 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);
 }

Original file line number	Diff line number	Diff line change
`@@ -8492,7 +8492,7 @@ static void cnp_init_clock_gating(struct drm_i915_private *dev_priv)`
`8492`	`8492`	`if (!HAS_PCH_CNP(dev_priv))`
`8493`	`8493`	`return;`
`8494`	`8494`
`8495`		`- /* Display WA #1181: cnp */`
	`8495`	`+ /* Display WA #1181 WaSouthDisplayDisablePWMCGEGating: cnp */`
`8496`	`8496`	`I915_WRITE(SOUTH_DSPCLK_GATE_D, I915_READ(SOUTH_DSPCLK_GATE_D) \|`
`8497`	`8497`	`CNP_PWM_CGE_GATING_DISABLE);`
`8498`	`8498`	`}`