Files
linux/drivers
Niko Tsirakis cf37c0979e drm/i915/display/lspcon: Increase LSPCON mode settle timeout
This is to eliminate all cases of "*ERROR* LSPCON mode hasn't settled",
followed by link training errors. Intel engineers recommended increasing
this timeout and that does resolve the issue.

On some CometLake-based device designs the Parade PS175 takes more than
400ms to settle in PCON mode. 100 reboot trials on one device resulted
in a median settle time of 440ms and a maximum of 444ms. Even after
increasing the timeout to 500ms, 2% of devices still had this error. So
this increases the timeout to 800ms.

Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/9443
Signed-off-by: Pablo Ceballos <pceballos@google.com>
Signed-off-by: Niko Tsirakis <ntsirakis@google.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231002204709.761089-1-ntsirakis@google.com
2023-10-04 18:34:20 +03:00
..
2023-08-22 15:50:57 +02:00
2023-08-24 16:20:30 -07:00
2023-08-30 18:32:24 -07:00
2023-08-18 10:55:49 +05:30
2023-08-24 16:20:18 -07:00
2023-08-21 13:27:44 +02:00