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| author | Matt Roper <matthew.d.roper@intel.com> | 2021-01-25 06:07:53 -0800 |
|---|---|---|
| committer | Lucas De Marchi <lucas.demarchi@intel.com> | 2021-01-26 07:10:45 -0800 |
| commit | 52401eb8e3fced097628507e1d3056cc81d51ed9 (patch) | |
| tree | 219d6c046c0075f86e8a095d26130abad26f8208 /drivers/gpu/drm/i915/display/intel_combo_phy.c | |
| parent | 18c283df5a0ece65ac1cfc6f1e2867fd24636252 (diff) | |
| download | linux-52401eb8e3fced097628507e1d3056cc81d51ed9.tar.gz linux-52401eb8e3fced097628507e1d3056cc81d51ed9.tar.bz2 linux-52401eb8e3fced097628507e1d3056cc81d51ed9.zip | |
drm/i915/adl_s: Update combo PHY master/slave relationships
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: Anusha Srivatsa <anusha.srivatsa@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210125140753.347998-11-aditya.swarup@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_combo_phy.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_combo_phy.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_combo_phy.c b/drivers/gpu/drm/i915/display/intel_combo_phy.c index 996ae0608a62..dd45cbafcf42 100644 --- a/drivers/gpu/drm/i915/display/intel_combo_phy.c +++ b/drivers/gpu/drm/i915/display/intel_combo_phy.c @@ -246,14 +246,21 @@ static bool phy_is_master(struct drm_i915_private *dev_priv, enum phy phy) * RKL,DG1: * A(master) -> B(slave) * C(master) -> D(slave) + * ADL-S: + * A(master) -> B(slave), C(slave) + * D(master) -> E(slave) * * We must set the IREFGEN bit for any PHY acting as a master * to another PHY. */ - if ((IS_DG1(dev_priv) || IS_ROCKETLAKE(dev_priv)) && phy == PHY_C) + if (phy == PHY_A) return true; + else if (IS_ALDERLAKE_S(dev_priv)) + return phy == PHY_D; + else if (IS_DG1(dev_priv) || IS_ROCKETLAKE(dev_priv)) + return phy == PHY_C; - return phy == PHY_A; + return false; } static bool icl_combo_phy_verify_state(struct drm_i915_private *dev_priv, |