From 13bd259b64bb58ae130923ada42ebc19bf3f2fa2 Mon Sep 17 00:00:00 2001 From: Ville Syrjälä Date: Mon, 13 Jun 2022 23:14:39 +0300 Subject: drm/i915: Implement w/a 22010492432 for adl-s MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit adl-s needs the combo PLL DCO fraction w/a as well. Gets us slightly more accurate clock out of the PLL. Cc: stable@vger.kernel.org Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20220613201439.23341-1-ville.syrjala@linux.intel.com Reviewed-by: Matt Roper (cherry picked from commit d36bdd77b9e6aa7f5cb7b0f11ebbab8e5febf10b) Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/display/intel_dpll_mgr.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/gpu/drm/i915/display') diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c index 22f55574a35c..88c2f38aa870 100644 --- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c +++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c @@ -2396,7 +2396,7 @@ 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 @@ -2404,7 +2404,7 @@ 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; } -- cgit v1.2.3