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drm/i915/adl_s: Update PHY_MISC programming

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ADL-S switches up which PHYs are considered a master to other PHYs;
PHY-C is no longer a master, but PHY-D is now.

Bspec: 49291
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Aditya Swarup <aditya.swarup@intel.com>
Reviewed-by: Aditya Swarup <aditya.swarup@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210129182945.217078-2-aditya.swarup@intel.com
This commit is contained in:
Matt Roper 2021-01-29 10:29:38 -08:00 committed by José Roberto de Souza
parent 52401eb8e3
commit b4cd8dd367
1 changed files with 9 additions and 3 deletions
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12
drivers/gpu/drm/i915/display/intel_combo_phy.c
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@ -187,10 +187,16 @@ static bool has_phy_misc(struct drm_i915_private *i915, enum phy phy)
* Some platforms only expect PHY_MISC to be programmed for PHY-A and
* PHY-B and may not even have instances of the register for the
* other combo PHY's.
*
* ADL-S technically has three instances of PHY_MISC, but only requires
* that we program it for PHY A.
*/
if (IS_JSL_EHL(i915) ||
IS_ROCKETLAKE(i915) ||
IS_DG1(i915))
if (IS_ALDERLAKE_S(i915))
return phy == PHY_A;
else if (IS_JSL_EHL(i915) ||
IS_ROCKETLAKE(i915) ||
IS_DG1(i915))
return phy < PHY_C;
return true;