This is a note to let you know that I've just added the patch titled
drm/amd/display: enable dsc_clk even if dsc_pg disabled
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amd-display-enable-dsc_clk-even-if-dsc_pg-disabl.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit fb508286dd45a6c20533ea1da620dc625fca6b47
Author: Muhammad Ahmed <ahmed.ahmed@xxxxxxx>
Date: Mon Sep 18 16:52:54 2023 -0400
drm/amd/display: enable dsc_clk even if dsc_pg disabled
[ Upstream commit 40255df370e94d44f0f0a924400d68db0ee31bec ]
[why]
need to enable dsc_clk regardless dsc_pg
Reviewed-by: Charlene Liu <charlene.liu@xxxxxxx>
Cc: Mario Limonciello <mario.limonciello@xxxxxxx>
Cc: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Acked-by: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
Signed-off-by: Muhammad Ahmed <ahmed.ahmed@xxxxxxx>
Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 38abbd0c9d997..186936ad283a5 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1843,7 +1843,7 @@ static enum dc_status dc_commit_state_no_check(struct dc *dc, struct dc_state *c
if (dc->hwss.subvp_pipe_control_lock)
dc->hwss.subvp_pipe_control_lock(dc, context, true, true, NULL, subvp_prev_use);
- if (dc->debug.enable_double_buffered_dsc_pg_support)
+ if (dc->hwss.update_dsc_pg)
dc->hwss.update_dsc_pg(dc, context, false);
disable_dangling_plane(dc, context);
@@ -1950,7 +1950,7 @@ static enum dc_status dc_commit_state_no_check(struct dc *dc, struct dc_state *c
dc->hwss.optimize_bandwidth(dc, context);
}
- if (dc->debug.enable_double_buffered_dsc_pg_support)
+ if (dc->hwss.update_dsc_pg)
dc->hwss.update_dsc_pg(dc, context, true);
if (dc->ctx->dce_version >= DCE_VERSION_MAX)
@@ -2197,7 +2197,7 @@ void dc_post_update_surfaces_to_stream(struct dc *dc)
dc->hwss.optimize_bandwidth(dc, context);
- if (dc->debug.enable_double_buffered_dsc_pg_support)
+ if (dc->hwss.update_dsc_pg)
dc->hwss.update_dsc_pg(dc, context, true);
}
@@ -3533,7 +3533,7 @@ static void commit_planes_for_stream(struct dc *dc,
if (get_seamless_boot_stream_count(context) == 0)
dc->hwss.prepare_bandwidth(dc, context);
- if (dc->debug.enable_double_buffered_dsc_pg_support)
+ if (dc->hwss.update_dsc_pg)
dc->hwss.update_dsc_pg(dc, context, false);
context_clock_trace(dc, context);
diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c
index be59e1c02f8aa..c9140b50c3454 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c
@@ -77,6 +77,9 @@ void dcn32_dsc_pg_control(
if (hws->ctx->dc->debug.disable_dsc_power_gate)
return;
+ if (!hws->ctx->dc->debug.enable_double_buffered_dsc_pg_support)
+ return;
+
REG_GET(DC_IP_REQUEST_CNTL, IP_REQUEST_EN, &org_ip_request_cntl);
if (org_ip_request_cntl == 0)
REG_SET(DC_IP_REQUEST_CNTL, 0, IP_REQUEST_EN, 1);
