From: Dnyaneshwar Bhadane <dnyaneshwar.bhadane@xxxxxxxxx> When deciding the type of the phy, Add PTL support to make sure the correct path is taken for selection of C10 PHY. Only port A is connected C10 PHY for Pantherlake. Bspec: 72571 Signed-off-by: Dnyaneshwar Bhadane <dnyaneshwar.bhadane@xxxxxxxxx> Signed-off-by: Matt Atwood <matthew.s.atwood@xxxxxxxxx> --- drivers/gpu/drm/i915/display/intel_cx0_phy.c | 9 +++++++-- drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h | 1 + 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy.c b/drivers/gpu/drm/i915/display/intel_cx0_phy.c index 13a99f494680..73a151c81706 100644 --- a/drivers/gpu/drm/i915/display/intel_cx0_phy.c +++ b/drivers/gpu/drm/i915/display/intel_cx0_phy.c @@ -34,6 +34,9 @@ bool intel_encoder_is_c10phy(struct intel_encoder *encoder) struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum phy phy = intel_encoder_to_phy(encoder); + if (IS_PANTHERLAKE(i915) && phy == PHY_A) + return true; + if ((IS_LUNARLAKE(i915) || IS_METEORLAKE(i915)) && phy < PHY_C) return true; @@ -221,7 +224,8 @@ static int __intel_cx0_read_once(struct intel_encoder *encoder, * down and let the message bus to end up * in a known state */ - intel_cx0_bus_reset(encoder, lane); + if (DISPLAY_VER(i915) < 30) + intel_cx0_bus_reset(encoder, lane); return REG_FIELD_GET(XELPDP_PORT_P2M_DATA_MASK, val); } @@ -310,7 +314,8 @@ static int __intel_cx0_write_once(struct intel_encoder *encoder, * down and let the message bus to end up * in a known state */ - intel_cx0_bus_reset(encoder, lane); + if (DISPLAY_VER(i915) < 30) + intel_cx0_bus_reset(encoder, lane); return 0; } diff --git a/drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h b/drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h index b7041b578e5e..bd8c3de57dcd 100644 --- a/drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h +++ b/drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h @@ -67,6 +67,7 @@ static inline struct drm_i915_private *to_i915(const struct drm_device *dev) #define IS_METEORLAKE(dev_priv) IS_PLATFORM(dev_priv, XE_METEORLAKE) #define IS_LUNARLAKE(dev_priv) IS_PLATFORM(dev_priv, XE_LUNARLAKE) #define IS_BATTLEMAGE(dev_priv) IS_PLATFORM(dev_priv, XE_BATTLEMAGE) +#define IS_PANTHERLAKE(dev_priv) IS_PLATFORM(dev_priv, XE_PANTHERLAKE) #define IS_HASWELL_ULT(dev_priv) (dev_priv && 0) #define IS_BROADWELL_ULT(dev_priv) (dev_priv && 0) -- 2.45.0
