From 38df070135297746804bf8537ac2e8c66bb37bd5 Mon Sep 17 00:00:00 2001
From: Wenjing Liu <Wenjing.Liu@amd.com>
Date: Wed, 10 Jul 2019 18:31:38 -0400
Subject: drm/amd/display: reset drr programming on pipe reset
Git-commit: 38df070135297746804bf8537ac2e8c66bb37bd5
Patch-mainline: v5.4-rc1
References: bsc#1152489
[why]
drr is still enabled after driver is unloaded causing black screen
[how]
disable drr during pipe reset.
Signed-off-by: Wenjing Liu <Wenjing.Liu@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 3 +++
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c | 4 ++++
2 files changed, 7 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 e720be6be369..04399c541c28 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
@@ -823,6 +823,9 @@ static void dcn10_reset_back_end_for_pipe(
pipe_ctx->stream_res.tg->funcs->disable_crtc(pipe_ctx->stream_res.tg);
pipe_ctx->stream_res.tg->funcs->enable_optc_clock(pipe_ctx->stream_res.tg, false);
+ if (pipe_ctx->stream_res.tg->funcs->set_drr)
+ pipe_ctx->stream_res.tg->funcs->set_drr(
+ pipe_ctx->stream_res.tg, NULL);
}
for (i = 0; i < dc->res_pool->pipe_count; i++)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
index 38b3c89b2a59..27d143418cc7 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
@@ -1834,6 +1834,10 @@ static void dcn20_reset_back_end_for_pipe(
if (pipe_ctx->stream_res.tg->funcs->set_odm_bypass)
pipe_ctx->stream_res.tg->funcs->set_odm_bypass(
pipe_ctx->stream_res.tg, &pipe_ctx->stream->timing);
+
+ if (pipe_ctx->stream_res.tg->funcs->set_drr)
+ pipe_ctx->stream_res.tg->funcs->set_drr(
+ pipe_ctx->stream_res.tg, NULL);
}
for (i = 0; i < dc->res_pool->pipe_count; i++)
--
2.28.0