From: Matt Roper <matthew.d.roper@xxxxxxxxx> The only bit we use in PHY_MISC is DE_IO_COMP_PWR_DOWN, and the bspec details for that bit tell us that it need only be set for PHY-A and PHY-B. It also turns out that there isn't even an instance of the PHY_MISC register for PHY-D on this platform. Let's extend the EHL/RKL logic that conditionally skips PHY_MISC usage to DG1 as well. Bspec: 50107 Cc: Aditya Swarup <aditya.swarup@xxxxxxxxx> Cc: Clinton Taylor <Clinton.A.Taylor@xxxxxxxxx> Signed-off-by: Matt Roper <matthew.d.roper@xxxxxxxxx> Signed-off-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx> --- drivers/gpu/drm/i915/display/intel_combo_phy.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_combo_phy.c b/drivers/gpu/drm/i915/display/intel_combo_phy.c index 77b04bb3ec62..8604d4392e6a 100644 --- a/drivers/gpu/drm/i915/display/intel_combo_phy.c +++ b/drivers/gpu/drm/i915/display/intel_combo_phy.c @@ -189,7 +189,8 @@ static bool has_phy_misc(struct drm_i915_private *i915, enum phy phy) * other combo PHY's. */ if (IS_ELKHARTLAKE(i915) || - IS_ROCKETLAKE(i915)) + IS_ROCKETLAKE(i915) || + IS_DG1(i915)) return phy < PHY_C; return true; -- 2.26.2 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
