diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/4201-drm-amd-display-fix-brightness-level-after-resume-fr.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/4201-drm-amd-display-fix-brightness-level-after-resume-fr.patch | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/4201-drm-amd-display-fix-brightness-level-after-resume-fr.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/4201-drm-amd-display-fix-brightness-level-after-resume-fr.patch new file mode 100644 index 00000000..3936b07e --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/4201-drm-amd-display-fix-brightness-level-after-resume-fr.patch @@ -0,0 +1,74 @@ +From e00879fc1239810ea04c474b80d0b7702e4ddf80 Mon Sep 17 00:00:00 2001 +From: Roman Li <Roman.Li@amd.com> +Date: Thu, 29 Mar 2018 10:56:17 -0400 +Subject: [PATCH 4201/5725] drm/amd/display: fix brightness level after resume + from suspend + +Adding missing call to cache current backlight values. +Otherwise the brightness resets to default value on resume. + +Signed-off-by: Roman Li <Roman.Li@amd.com> +Reviewed-by: Charlene Liu <Charlene.Liu@amd.com> +Acked-by: Harry Wentland <harry.wentland@amd.com> +--- + drivers/gpu/drm/amd/display/dc/core/dc_link.c | 13 +++++++++++++ + drivers/gpu/drm/amd/display/dc/dc_link.h | 2 ++ + drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 4 +++- + 3 files changed, 18 insertions(+), 1 deletion(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c +index 0cd286f..b44cf52 100644 +--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c ++++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c +@@ -2018,6 +2018,19 @@ bool dc_link_set_backlight_level(const struct dc_link *link, uint32_t level, + return true; + } + ++bool dc_link_set_abm_disable(const struct dc_link *link) ++{ ++ struct dc *core_dc = link->ctx->dc; ++ struct abm *abm = core_dc->res_pool->abm; ++ ++ if ((abm == NULL) || (abm->funcs->set_backlight_level == NULL)) ++ return false; ++ ++ abm->funcs->set_abm_immediate_disable(abm); ++ ++ return true; ++} ++ + bool dc_link_set_psr_enable(const struct dc_link *link, bool enable, bool wait) + { + struct dc *core_dc = link->ctx->dc; +diff --git a/drivers/gpu/drm/amd/display/dc/dc_link.h b/drivers/gpu/drm/amd/display/dc/dc_link.h +index eeff987..8a716baa 100644 +--- a/drivers/gpu/drm/amd/display/dc/dc_link.h ++++ b/drivers/gpu/drm/amd/display/dc/dc_link.h +@@ -141,6 +141,8 @@ static inline struct dc_link *dc_get_link_at_index(struct dc *dc, uint32_t link_ + bool dc_link_set_backlight_level(const struct dc_link *dc_link, uint32_t level, + uint32_t frame_ramp, const struct dc_stream_state *stream); + ++bool dc_link_set_abm_disable(const struct dc_link *dc_link); ++ + bool dc_link_set_psr_enable(const struct dc_link *dc_link, bool enable, bool wait); + + bool dc_link_get_psr_state(const struct dc_link *dc_link, uint32_t *psr_state); +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 1e3ed0e..5bed5a3 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 +@@ -1046,8 +1046,10 @@ void dce110_blank_stream(struct pipe_ctx *pipe_ctx) + struct dc_stream_state *stream = pipe_ctx->stream; + struct dc_link *link = stream->sink->link; + +- if (link->local_sink && link->local_sink->sink_signal == SIGNAL_TYPE_EDP) ++ if (link->local_sink && link->local_sink->sink_signal == SIGNAL_TYPE_EDP) { + link->dc->hwss.edp_backlight_control(link, false); ++ dc_link_set_abm_disable(link); ++ } + + if (dc_is_dp_signal(pipe_ctx->stream->signal)) + pipe_ctx->stream_res.stream_enc->funcs->dp_blank(pipe_ctx->stream_res.stream_enc); +-- +2.7.4 + |