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-rw-r--r--meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2641-drm-amd-display-Should-disable-when-new-stream-is-nu.patch36
1 files changed, 36 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2641-drm-amd-display-Should-disable-when-new-stream-is-nu.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2641-drm-amd-display-Should-disable-when-new-stream-is-nu.patch
new file mode 100644
index 00000000..51249931
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2641-drm-amd-display-Should-disable-when-new-stream-is-nu.patch
@@ -0,0 +1,36 @@
+From 17fc004e7a1eae75750b44f5c3d216915557d8ff Mon Sep 17 00:00:00 2001
+From: "Leo (Sunpeng) Li" <sunpeng.li@amd.com>
+Date: Tue, 17 Oct 2017 17:18:24 -0400
+Subject: [PATCH 2641/4131] drm/amd/display: Should disable when new stream is
+ null
+
+core_link_disable_stream should be called when the new stream is null
+(i.e. want to disable). Modify the if condition to reflect that.
+
+Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
+Reviewed-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 a1e4407..4c072662 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
+@@ -1863,8 +1863,10 @@ static void dce110_reset_hw_ctx_wrap(
+ pipe_need_reprogram(pipe_ctx_old, pipe_ctx)) {
+ struct clock_source *old_clk = pipe_ctx_old->clock_source;
+
+- /* disable already, no need to disable again */
+- if (pipe_ctx->stream && !pipe_ctx->stream->dpms_off)
++ /* Disable if new stream is null. O/w, if stream is
++ * disabled already, no need to disable again.
++ */
++ if (!pipe_ctx->stream || !pipe_ctx->stream->dpms_off)
+ core_link_disable_stream(pipe_ctx_old, FREE_ACQUIRED_RESOURCE);
+
+ pipe_ctx_old->stream_res.tg->funcs->set_blank(pipe_ctx_old->stream_res.tg, true);
+--
+2.7.4
+