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FAILED: patch "[PATCH] drm/i915: Implement w/a 22010492432 for adl-s" failed to apply to 5.15-stable tree

PATCH [email protected] 1 participant 1 message Aug 13, 2022

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The patch below does not apply to the 5.15-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From d36bdd77b9e6aa7f5cb7b0f11ebbab8e5febf10b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <[email protected]>
Date: Mon, 13 Jun 2022 23:14:39 +0300
Subject: [PATCH] drm/i915: Implement w/a 22010492432 for adl-s
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adl-s needs the combo PLL DCO fraction w/a as well. Gets us slightly more accurate clock out of the PLL.

drivers/gpu/drm/i915/display/intel_dpll_mgr.c +2 -2
index 64708e874b13..982e5b945680 100644
@@ -2459,7 +2459,7 @@ static void icl_wrpll_params_populate(struct skl_wrpll_params *params,
 }
 
 /*
- * Display WA #22010492432: ehl, tgl, adl-p
+ * Display WA #22010492432: ehl, tgl, adl-s, adl-p
  * Program half of the nominal DCO divider fraction value.
  */
 static bool
@@ -2467,7 +2467,7 @@ ehl_combo_pll_div_frac_wa_needed(struct drm_i915_private *i915)
 {
 	return ((IS_PLATFORM(i915, INTEL_ELKHARTLAKE) &&
 		 IS_JSL_EHL_DISPLAY_STEP(i915, STEP_B0, STEP_FOREVER)) ||
-		 IS_TIGERLAKE(i915) || IS_ALDERLAKE_P(i915)) &&
+		 IS_TIGERLAKE(i915) || IS_ALDERLAKE_S(i915) || IS_ALDERLAKE_P(i915)) &&
 		 i915->dpll.ref_clks.nssc == 38400;
 }