From: Ville Syrjälä Date: Wed, 29 Mar 2023 17:24:33 +0000 (+0300) Subject: drm/i915: Fix fast wake AUX sync len X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=605f7c73133341d4b762cbd9a22174cc22d4c38b;p=linux.git 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: Jouni Högander Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20230329172434.18744-1-ville.syrjala@linux.intel.com Reviewed-by: Jouni Högander --- diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux.c b/drivers/gpu/drm/i915/display/intel_dp_aux.c index fbdca7bd725d6..fa1fbac6f543c 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_aux.c +++ b/drivers/gpu/drm/i915/display/intel_dp_aux.c @@ -165,7 +165,7 @@ 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))