diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3027-drm-amd-display-Incorrect-Read-Interval-Time-For-CR-.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3027-drm-amd-display-Incorrect-Read-Interval-Time-For-CR-.patch | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3027-drm-amd-display-Incorrect-Read-Interval-Time-For-CR-.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3027-drm-amd-display-Incorrect-Read-Interval-Time-For-CR-.patch new file mode 100644 index 00000000..f376f1b9 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3027-drm-amd-display-Incorrect-Read-Interval-Time-For-CR-.patch @@ -0,0 +1,37 @@ +From 4030f2ec229dc865a012c894f7695094018510de Mon Sep 17 00:00:00 2001 +From: David Galiffi <david.galiffi@amd.com> +Date: Fri, 7 Jun 2019 21:32:34 -0400 +Subject: [PATCH 3027/4256] drm/amd/display: Incorrect Read Interval Time For + CR Sequence + +[WHY] +TRAINING_AUX_RD_INTERVAL (DPCD 000Eh) modifies the read interval +for the EQ training sequence. CR read interval should remain 100 us. +Currently, the CR interval is also being modified. + +[HOW] +lt_settings->cr_pattern_time should always be 100 us. + +Signed-off-by: David Galiffi <david.galiffi@amd.com> +Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> +Acked-by: Leo Li <sunpeng.li@amd.com> +--- + drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c +index fca1bfc901b6..4442e7b1e5b5 100644 +--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c ++++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c +@@ -1035,7 +1035,7 @@ static void initialize_training_settings( + if (link->preferred_training_settings.cr_pattern_time != NULL) + lt_settings->cr_pattern_time = *link->preferred_training_settings.cr_pattern_time; + else +- lt_settings->cr_pattern_time = get_training_aux_rd_interval(link, 100); ++ lt_settings->cr_pattern_time = 100; + + if (link->preferred_training_settings.eq_pattern_time != NULL) + lt_settings->eq_pattern_time = *link->preferred_training_settings.eq_pattern_time; +-- +2.17.1 + |