1 files changed, 41 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3028-drm-amd-display-Clock-does-not-lower-in-Updateplanes.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3028-drm-amd-display-Clock-does-not-lower-in-Updateplanes.patch
new file mode 100644
index 00000000..109102f6
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3028-drm-amd-display-Clock-does-not-lower-in-Updateplanes.patch
@@ -0,0 +1,41 @@
+From 287ff50c3bd0ff28fb7d305e294f3077bd35e653 Mon Sep 17 00:00:00 2001
+From: Murton Liu <murton.liu@amd.com>
+Date: Mon, 10 Jun 2019 17:55:28 -0400
+Subject: [PATCH 3028/4256] drm/amd/display: Clock does not lower in
+ Updateplanes
+
+[why]
+We reset the optimized_required in atomic_plane_disable
+flag immediately after it is set in atomic_plane_disconnect, causing us to
+never have flag set during next flip in UpdatePlanes.
+
+[how]
+Optimize directly after each time plane is removed.
+
+Signed-off-by: Murton Liu <murton.liu@amd.com>
+Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
+Acked-by: Leo Li <sunpeng.li@amd.com>
+---
+ drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+index af5f6a3dd61f..15ac6de3fd30 100644
+--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
++++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+@@ -2514,6 +2514,12 @@ static void dcn10_apply_ctx_for_surface(
+ 		if (removed_pipe[i])
+ 			dcn10_disable_plane(dc, &dc->current_state->res_ctx.pipe_ctx[i]);
+ 
++	for (i = 0; i < dc->res_pool->pipe_count; i++)
++		if (removed_pipe[i]) {
++			dc->hwss.optimize_bandwidth(dc, context);
++			break;
++		}
++
+ 	if (dc->hwseq->wa.DEGVIDCN10_254)
+ 		hubbub1_wm_change_req_wa(dc->res_pool->hubbub);
+ }
+-- 
+2.17.1
+