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Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/1027-drm-amd-display-add-backlight-control-in-blankstream.patch')
-rw-r--r--meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/1027-drm-amd-display-add-backlight-control-in-blankstream.patch51
1 files changed, 51 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/1027-drm-amd-display-add-backlight-control-in-blankstream.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/1027-drm-amd-display-add-backlight-control-in-blankstream.patch
new file mode 100644
index 00000000..dcec9b89
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/1027-drm-amd-display-add-backlight-control-in-blankstream.patch
@@ -0,0 +1,51 @@
+From 84cbfa00f9bf9513d8f003a412beb6f132bd7e85 Mon Sep 17 00:00:00 2001
+From: Charlene Liu <charlene.liu@amd.com>
+Date: Mon, 28 Aug 2017 19:35:25 -0400
+Subject: [PATCH 1027/4131] drm/amd/display: add backlight control in
+ blankstream.
+
+Change-Id: I17ff8fe4b031dae5428f8267ec3eb280f79fbbb4
+Signed-off-by: Charlene Liu <charlene.liu@amd.com>
+Reviewed-by: Krunoslav Kovac <Krunoslav.Kovac@amd.com>
+Acked-by: Harry Wentland <Harry.Wentland@amd.com>
+---
+ drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 9 +++++++--
+ 1 file changed, 7 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 1e3ec04..b8043bd 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
+@@ -778,9 +778,11 @@ void dce110_disable_stream(struct pipe_ctx *pipe_ctx)
+
+
+ /* blank at encoder level */
+- if (dc_is_dp_signal(pipe_ctx->stream->signal))
++ if (dc_is_dp_signal(pipe_ctx->stream->signal)) {
++ if (pipe_ctx->stream->sink->link->connector_signal == SIGNAL_TYPE_EDP)
++ link->link_enc->funcs->backlight_control(link->link_enc, false);
+ pipe_ctx->stream_res.stream_enc->funcs->dp_blank(pipe_ctx->stream_res.stream_enc);
+-
++ }
+ link->link_enc->funcs->connect_dig_be_to_fe(
+ link->link_enc,
+ pipe_ctx->stream_res.stream_enc->id,
+@@ -792,12 +794,15 @@ void dce110_unblank_stream(struct pipe_ctx *pipe_ctx,
+ struct dc_link_settings *link_settings)
+ {
+ struct encoder_unblank_param params = { { 0 } };
++ struct dc_link *link = pipe_ctx->stream->sink->link;
+
+ /* only 3 items below are used by unblank */
+ params.pixel_clk_khz =
+ pipe_ctx->stream->timing.pix_clk_khz;
+ params.link_settings.link_rate = link_settings->link_rate;
+ pipe_ctx->stream_res.stream_enc->funcs->dp_unblank(pipe_ctx->stream_res.stream_enc, &params);
++ if (link->connector_signal == SIGNAL_TYPE_EDP)
++ link->link_enc->funcs->backlight_control(link->link_enc, true);
+ }
+
+
+--
+2.7.4
+