[Intel-gfx] [PATCH] Revert "drm/i915/dg2: extend Wa_1409120013 to DG2"

[Lucas De Marchi]

This reverts commit 487970e8bb776c989013bb59d6cbb22e45b9afc6.

Updated bspec and workaround database note Wa_1409120013 is not needed
for DG2 (or any Display 13) platform.

Cc: Matt Roper <matthew.d.roper at intel.com>
Cc: Matt Atwood <matthew.s.atwood at intel.com>
Cc: Clint Taylor <Clinton.A.Taylor at intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>
---
 drivers/gpu/drm/i915/intel_pm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 210c1f78cc90..6ff0b80e69ac 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -7614,9 +7614,9 @@ static void icl_init_clock_gating(struct drm_i915_private *dev_priv)
 
 static void gen12lp_init_clock_gating(struct drm_i915_private *dev_priv)
 {
-	/* Wa_1409120013:tgl,rkl,adl-s,dg1,dg2 */
+	/* Wa_1409120013:tgl,rkl,adl-s,dg1 */
 	if (IS_TIGERLAKE(dev_priv) || IS_ROCKETLAKE(dev_priv) ||
-	    IS_ALDERLAKE_S(dev_priv) || IS_DG1(dev_priv) || IS_DG2(dev_priv))
+	    IS_ALDERLAKE_S(dev_priv) || IS_DG1(dev_priv))
 		intel_uncore_write(&dev_priv->uncore, ILK_DPFC_CHICKEN(INTEL_FBC_A),
 				   DPFC_CHICKEN_COMP_DUMMY_PIXEL);
 
-- 
2.37.2