diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2899-drm-amd-display-Disable-plane-right-after-disconnect.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2899-drm-amd-display-Disable-plane-right-after-disconnect.patch | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2899-drm-amd-display-Disable-plane-right-after-disconnect.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2899-drm-amd-display-Disable-plane-right-after-disconnect.patch new file mode 100644 index 00000000..17b81e44 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2899-drm-amd-display-Disable-plane-right-after-disconnect.patch @@ -0,0 +1,45 @@ +From a9e23519f99948f545d6a48a8f594a8773f36696 Mon Sep 17 00:00:00 2001 +From: Yongqiang Sun <yongqiang.sun@amd.com> +Date: Fri, 17 Nov 2017 10:44:15 -0500 +Subject: [PATCH 2899/4131] drm/amd/display: Disable plane right after + disconnected + +HDR display playing video underflow is observed when switching +to full screen due to program a lower watermark right after unlock otg. + +Instead of disable plane in next flip coming, if there is a +plane disconnected, after otg unlock wait for mpcc idle and disable +the plane, then program watermark. So there is enough warter mark to make +sure current frame data pass through. + +Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com> +Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> +Acked-by: Harry Wentland <harry.wentland@amd.com> +--- + drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +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 1ebe980..d542e4db 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 +@@ -2297,7 +2297,7 @@ static void dcn10_apply_ctx_for_surface( + pipe_ctx->plane_state->update_flags.bits.full_update) + program_water_mark = true; + +- if (removed_pipe[i] && num_planes == 0) ++ if (removed_pipe[i]) + dcn10_disable_plane(dc, old_pipe_ctx); + } + +@@ -2306,6 +2306,7 @@ static void dcn10_apply_ctx_for_surface( + /* pstate stuck check after watermark update */ + dcn10_verify_allow_pstate_change_high(dc); + } ++ + /* watermark is for all pipes */ + hubbub1_program_watermarks(dc->res_pool->hubbub, + &context->bw.dcn.watermarks, ref_clk_mhz); +-- +2.7.4 + |