diff options
| author |   Ville Syrjälä <ville.syrjala@linux.intel.com> | 2022-06-13 23:14:39 +0300 |
|---|---|---|
| committer |   Jani Nikula <jani.nikula@intel.com> | 2022-06-20 13:07:44 +0300 |
| commit | 13bd259b64bb58ae130923ada42ebc19bf3f2fa2 (patch) | |
| tree | b3a15d4be841acc7aeae8416149788a8bc6bd554 /drivers/gpu/drm/i915 | |
| parent | Linux 5.19-rc3 (diff) | |
| download | linux-dev-13bd259b64bb58ae130923ada42ebc19bf3f2fa2.tar.xz linux-dev-13bd259b64bb58ae130923ada42ebc19bf3f2fa2.zip | |
drm/i915: Implement w/a 22010492432 for adl-s
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 <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220613201439.23341-1-ville.syrjala@linux.intel.com
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
(cherry picked from commit d36bdd77b9e6aa7f5cb7b0f11ebbab8e5febf10b)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dpll_mgr.c | 4 |
1 files changed, 2 insertions, 2 deletions
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; } |