On Mon, 21 Oct 2024, Gustavo Sousa <gustavo.sousa@xxxxxxxxx> wrote: > Quoting Matt Atwood (2024-10-18 17:49:32-03:00) >>From: Dnyaneshwar Bhadane <dnyaneshwar.bhadane@xxxxxxxxx> >> >>When deciding the type of the phy, Add PTL support to make > > s/Add/add/ > >>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); > > I think skipping the call to intel_cx0_bus_reset() should be a patch on > its own. Moreover, the commit message fails to explain *why* it's skipped. BR, Jani. > > With this patch containing only the change to intel_encoder_is_c10phy(), > > Reviewed-by: Gustavo Sousa <gustavo.sousa@xxxxxxxxx> > > -- > Gustavo Sousa > >> >> 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 >> -- Jani Nikula, Intel
