diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2023-03-29 20:24:33 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2023-04-17 10:23:21 +0300 |
| commit | e1c71f8f918047ce822dc19b42ab1261ed259fd1 (patch) | |
| tree | 4a613f8a4db0eaa3515ed6f973f081cac33b2ff2 /drivers/gpu | |
| parent | 6a8f57ae2eb07ab39a6f0ccad60c760743051026 (diff) | |
| download | linux-e1c71f8f918047ce822dc19b42ab1261ed259fd1.tar.xz | |
drm/i915: Fix fast wake AUX sync len
Fast wake should use 8 SYNC pulses for the preamble
and 10-16 SYNC pulses for the precharge. Reduce our
fast wake SYNC count to match the maximum value.
We also use the maximum precharge length for normal
AUX transactions.
Cc: stable@vger.kernel.org
Cc: Jouni Högander <jouni.hogander@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230329172434.18744-1-ville.syrjala@linux.intel.com
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
(cherry picked from commit 605f7c73133341d4b762cbd9a22174cc22d4c38b)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp_aux.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux.c b/drivers/gpu/drm/i915/display/intel_dp_aux.c index 5a176bfb10a2..30c98810e28b 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_aux.c +++ b/drivers/gpu/drm/i915/display/intel_dp_aux.c @@ -163,7 +163,7 @@ static u32 skl_get_aux_send_ctl(struct intel_dp *intel_dp, DP_AUX_CH_CTL_TIME_OUT_MAX | DP_AUX_CH_CTL_RECEIVE_ERROR | (send_bytes << DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT) | - DP_AUX_CH_CTL_FW_SYNC_PULSE_SKL(32) | + DP_AUX_CH_CTL_FW_SYNC_PULSE_SKL(24) | DP_AUX_CH_CTL_SYNC_PULSE_SKL(32); if (intel_tc_port_in_tbt_alt_mode(dig_port)) |