diff options
| author | Imre Deak <imre.deak@intel.com> | 2025-08-05 10:37:00 +0300 |
|---|---|---|
| committer | Imre Deak <imre.deak@intel.com> | 2025-08-13 15:03:32 +0300 |
| commit | dcf101872d03a2394ed5f5aa5b2b036080285e3c (patch) | |
| tree | f9ebf5fb90b21e2ac01933d258344081f472b77a /drivers/gpu/drm/i915/display/intel_tc.c | |
| parent | 24d1cdacac11ddc3388714c5f82d31a480659ac7 (diff) | |
| download | linux-dcf101872d03a2394ed5f5aa5b2b036080285e3c.tar.xz | |
drm/i915/tc: Debug print the pin assignment and max lane count
Debug print the TypeC pin assignment and max lane count value during HW
readout and after resetting the TypeC mode.
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Link: https://lore.kernel.org/r/20250805073700.642107-20-imre.deak@intel.com
Signed-off-by: Imre Deak <imre.deak@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_tc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_tc.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c index 706f60a7d291..583fed5a386d 100644 --- a/drivers/gpu/drm/i915/display/intel_tc.c +++ b/drivers/gpu/drm/i915/display/intel_tc.c @@ -277,6 +277,14 @@ static u32 get_lane_mask(struct intel_tc_port *tc) return lane_mask >> DP_LANE_ASSIGNMENT_SHIFT(tc->phy_fia_idx); } +static char pin_assignment_name(enum intel_tc_pin_assignment pin_assignment) +{ + if (pin_assignment == INTEL_TC_PIN_ASSIGNMENT_NONE) + return '-'; + + return 'A' + pin_assignment - INTEL_TC_PIN_ASSIGNMENT_A; +} + static enum intel_tc_pin_assignment get_pin_assignment(struct intel_tc_port *tc) { @@ -1510,10 +1518,13 @@ static void intel_tc_port_reset_mode(struct intel_tc_port *tc, if (!force_disconnect) tc_phy_connect(tc, required_lanes); - drm_dbg_kms(display->drm, "Port %s: TC port mode reset (%s -> %s)\n", + drm_dbg_kms(display->drm, + "Port %s: TC port mode reset (%s -> %s) pin assignment: %c max lanes: %d\n", tc->port_name, tc_port_mode_name(old_tc_mode), - tc_port_mode_name(tc->mode)); + tc_port_mode_name(tc->mode), + pin_assignment_name(tc->pin_assignment), + tc->max_lane_count); } static bool intel_tc_port_needs_reset(struct intel_tc_port *tc) @@ -1668,9 +1679,11 @@ void intel_tc_port_sanitize_mode(struct intel_digital_port *dig_port, __intel_tc_port_put_link(tc); } - drm_dbg_kms(display->drm, "Port %s: sanitize mode (%s)\n", + drm_dbg_kms(display->drm, "Port %s: sanitize mode (%s) pin assignment: %c max lanes: %d\n", tc->port_name, - tc_port_mode_name(tc->mode)); + tc_port_mode_name(tc->mode), + pin_assignment_name(tc->pin_assignment), + tc->max_lane_count); mutex_unlock(&tc->lock); } |