From: Yongqiang Sun <yongqiang....@amd.com>
Power off plane clear all the reg values includes cursor.
When OS call set cursor position, cursor address reg is cleared,
results in system hard hang.
Change-Id: Id4f2fce5fab34cc0091e0a4a51e1274e9205ea48
Signed-off-by: Yongqiang Sun <yongqiang....@amd.com>
Reviewed-by: Tony Cheng <tony.ch...@amd.com>
Acked-by: Harry Wentland <harry.wentl...@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c
b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 75718151356d..474c2d42525d 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1254,9 +1254,12 @@ bool dc_post_update_surfaces_to_stream(struct dc *dc)
post_surface_trace(dc);
for (i = 0; i < core_dc->current_context->res_ctx.pool->pipe_count; i++)
- if (core_dc->current_context->res_ctx.pipe_ctx[i].stream ==
NULL)
+ if (core_dc->current_context->res_ctx.pipe_ctx[i].stream ==
NULL) {
+ core_dc->current_context->res_ctx.pipe_ctx[i].pipe_idx
= i;
core_dc->hwss.power_down_front_end(
- core_dc,
&core_dc->current_context->res_ctx.pipe_ctx[i]);
+ core_dc,
&core_dc->current_context->res_ctx.pipe_ctx[i]);
+ }
+
if (core_dc->res_pool->funcs->validate_bandwidth(core_dc,
core_dc->current_context)
!= DC_OK) {
--
2.9.3
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