[Intel-gfx] [PATCH v2 8/8] HACK: drm/i915/dp: give more time for CDS

Jani Nikula
2022-02-03T09:04:47Z

Try to avoid the timeout during debugging.

Cc: Uma Shankar <uma.shankar@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---
drivers/gpu/drm/i915/display/intel_dp_link_training.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
index 0686da36c428..c4807f7f5430 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
@@ -1288,6 +1288,9 @@ intel_dp_128b132b_lane_cds(struct intel_dp *intel_dp,
/* Time budget for the LANEx_CDS_DONE Sequence */
deadline = jiffies + msecs_to_jiffies((lttpr_count + 1) * 20);

+ /* FIXME: Give some slack for CDS. */
+ deadline += msecs_to_jiffies(500);
+
for (;;) {
usleep_range(2000, 3000);

--
2.30.2