diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/0999-drm-amd-display-retry-LT-on-failing-LT-in-automated-.patch')
-rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/0999-drm-amd-display-retry-LT-on-failing-LT-in-automated-.patch | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/0999-drm-amd-display-retry-LT-on-failing-LT-in-automated-.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/0999-drm-amd-display-retry-LT-on-failing-LT-in-automated-.patch new file mode 100644 index 00000000..b318c705 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/0999-drm-amd-display-retry-LT-on-failing-LT-in-automated-.patch @@ -0,0 +1,40 @@ +From b4cf4b8534de8f6ede59b99d8a678615cee61328 Mon Sep 17 00:00:00 2001 +From: Wenjing Liu <Wenjing.Liu@amd.com> +Date: Mon, 21 Aug 2017 16:43:08 -0400 +Subject: [PATCH 0999/4131] drm/amd/display: retry LT on failing LT in + automated request + +[Description] +Link training is not retried in automated link training request. +In case link training is occasionally failing, there is not way to retry +so the requested lane settings will not set. + +Change-Id: I46fbdcf9d115bb5d8a841134e5db2c95ef81ee3f +Signed-off-by: Wenjing Liu <Wenjing.Liu@amd.com> +Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> +Acked-by: Harry Wentland <Harry.Wentland@amd.com> +--- + drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c | 5 +++-- + 1 file changed, 3 insertions(+), 2 deletions(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c +index 3a5abd9..23d8b61 100644 +--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c ++++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c +@@ -299,10 +299,11 @@ void dp_retrain_link_dp_test(struct dc_link *link, + + dp_receiver_power_ctrl(link, true); + +- dc_link_dp_perform_link_training( ++ perform_link_training_with_retries( + link, + link_setting, +- skip_video_pattern); ++ skip_video_pattern, ++ LINK_TRAINING_ATTEMPTS); + + link->cur_link_settings = *link_setting; + +-- +2.7.4 + |