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| author | Yongqiang Sun <yongqiang.sun@amd.com> | 2017-01-27 10:29:01 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-09-26 17:12:48 -0400 |
| commit | bb9042da8e8ada796cfae7e432a54e872c5b1784 (patch) | |
| tree | 1a0afefd022d236d3264451147fd496eccce70bf /drivers/gpu | |
| parent | 75a74755763062b5dd722a19b3fe7a60813ee369 (diff) | |
| download | linux-stable-bb9042da8e8ada796cfae7e432a54e872c5b1784.tar.gz linux-stable-bb9042da8e8ada796cfae7e432a54e872c5b1784.tar.bz2 linux-stable-bb9042da8e8ada796cfae7e432a54e872c5b1784.zip | |
drm/amd/display: Change power gating off sequence to fix hang
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.
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>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc.c | 7 |
1 files 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) { |