diff options
Diffstat (limited to 'meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/0186-drm-amd-display-Change-power-gating-off-sequence-to-.patch')
-rw-r--r-- | meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/0186-drm-amd-display-Change-power-gating-off-sequence-to-.patch | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/0186-drm-amd-display-Change-power-gating-off-sequence-to-.patch b/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/0186-drm-amd-display-Change-power-gating-off-sequence-to-.patch new file mode 100644 index 00000000..f99a7ac7 --- /dev/null +++ b/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/0186-drm-amd-display-Change-power-gating-off-sequence-to-.patch @@ -0,0 +1,40 @@ +From c688110b0cca5748e72f0aecc2fce3c603b15000 Mon Sep 17 00:00:00 2001 +From: Yongqiang Sun <yongqiang.sun@amd.com> +Date: Fri, 27 Jan 2017 10:29:01 -0500 +Subject: [PATCH 0186/4131] 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> +--- + 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 7571815..474c2d4 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) { +-- +2.7.4 + |