diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/1148-drm-amd-display-take-dpms_off-into-account-for-edp-t.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/1148-drm-amd-display-take-dpms_off-into-account-for-edp-t.patch | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/1148-drm-amd-display-take-dpms_off-into-account-for-edp-t.patch b/meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/1148-drm-amd-display-take-dpms_off-into-account-for-edp-t.patch new file mode 100644 index 00000000..b6a66c52 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/1148-drm-amd-display-take-dpms_off-into-account-for-edp-t.patch @@ -0,0 +1,63 @@ +From fc3348111ec3b0b1a61fe4575ed5395a7725ffd2 Mon Sep 17 00:00:00 2001 +From: Eric Yang <Eric.Yang2@amd.com> +Date: Fri, 11 Jan 2019 17:09:18 -0500 +Subject: [PATCH 1148/2940] drm/amd/display: take dpms_off into account for edp + turn off logic + +[why] +Previously we incorrectly skipped backlight control when stream is +present but dpms_off = true. This causes backlight to remain on in +the we boot up or resume into a external display only configuration +where VBIOS posted on the eDP. + +[How] +Add dpms_off into the condition for edp need to turn off. + +Signed-off-by: Eric Yang <Eric.Yang2@amd.com> +Reviewed-by: Yongqiang Sun <yongqiang.sun@amd.com> +Acked-by: Leo Li <sunpeng.li@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + .../drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 12 ++++++++---- + 1 file changed, 8 insertions(+), 4 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 4bb2bac01b32..a30e2d08f531 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 +@@ -1520,7 +1520,7 @@ static struct dc_link *get_link_for_edp(struct dc *dc) + return NULL; + } + +-static struct dc_link *get_link_for_edp_not_in_use( ++static struct dc_link *get_link_for_edp_to_turn_off( + struct dc *dc, + struct dc_state *context) + { +@@ -1529,8 +1529,12 @@ static struct dc_link *get_link_for_edp_not_in_use( + + /* check if eDP panel is suppose to be set mode, if yes, no need to disable */ + for (i = 0; i < context->stream_count; i++) { +- if (context->streams[i]->signal == SIGNAL_TYPE_EDP) +- return NULL; ++ if (context->streams[i]->signal == SIGNAL_TYPE_EDP) { ++ if (context->streams[i]->dpms_off == true) ++ return context->streams[i]->sink->link; ++ else ++ return NULL; ++ } + } + + /* check if there is an eDP panel not in use */ +@@ -1572,7 +1576,7 @@ void dce110_enable_accelerated_mode(struct dc *dc, struct dc_state *context) + } + + if (can_edp_fast_boot_optimize) +- edp_link_to_turnoff = get_link_for_edp_not_in_use(dc, context); ++ edp_link_to_turnoff = get_link_for_edp_to_turn_off(dc, context); + + /* if OS doesn't light up eDP and eDP link is available, we want to disable + * If resume from S4/S5, should optimization. +-- +2.17.1 + |