diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/4933-drm-amd-display-Add-NULL-check-for-local-sink-in-edp.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/4933-drm-amd-display-Add-NULL-check-for-local-sink-in-edp.patch | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/4933-drm-amd-display-Add-NULL-check-for-local-sink-in-edp.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/4933-drm-amd-display-Add-NULL-check-for-local-sink-in-edp.patch new file mode 100644 index 00000000..98ad6529 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/4933-drm-amd-display-Add-NULL-check-for-local-sink-in-edp.patch @@ -0,0 +1,41 @@ +From f57ab5ff410727061811cd5a64b668b249492209 Mon Sep 17 00:00:00 2001 +From: Yue Hin Lau <Yuehin.Lau@amd.com> +Date: Wed, 27 Jun 2018 13:49:20 -0400 +Subject: [PATCH 4933/5725] drm/amd/display: Add NULL check for local sink in + edp_power_control + +[WHY] +PNP cause bsod regression fix + +[HOW] +Add NULL check + +Signed-off-by: Yue Hin Lau <Yuehin.Lau@amd.com> +Reviewed-by: Hugo Hu <Hugo.Hu@amd.com> +Acked-by: Harry Wentland <harry.wentland@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 6 ++++-- + 1 file changed, 4 insertions(+), 2 deletions(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c +index 298d2ca..8068074 100644 +--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c ++++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c +@@ -871,9 +871,11 @@ void hwss_edp_power_control( + unsigned long long wait_time_ms = 0; + + /* max 500ms from LCDVDD off to on */ +- unsigned long long edp_poweroff_time_ms = +- 500 + link->local_sink->edid_caps.panel_patch.extra_t12_ms; ++ unsigned long long edp_poweroff_time_ms = 500; + ++ if (link->local_sink != NULL) ++ edp_poweroff_time_ms = ++ 500 + link->local_sink->edid_caps.panel_patch.extra_t12_ms; + if (link->link_trace.time_stamp.edp_poweroff == 0) + wait_time_ms = edp_poweroff_time_ms; + else if (duration_in_ms < edp_poweroff_time_ms) +-- +2.7.4 + |