6.15-stable review patch. If anyone has any objections, please let me know.
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From: Roman Li Roman.Li@amd.com
[ Upstream commit 02f3ec53177243d32ee8b6f8ba99136d7887ee3a ]
[Why] "REG_WAIT timeout 1us * 1000 tries - dcn314_dsc_pg_control line" warnings seen after resuming from s2idle. DCN314 has issues with DSC power gating that cause REG_WAIT timeouts when attempting to power down DSC blocks.
[How] Disable dsc_power_gate for dcn314 by default.
Reviewed-by: Nicholas Kazlauskas nicholas.kazlauskas@amd.com Signed-off-by: Roman Li Roman.Li@amd.com Signed-off-by: Ivan Lipski ivan.lipski@amd.com Tested-by: Daniel Wheeler daniel.wheeler@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/display/dc/resource/dcn314/dcn314_resource.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn314/dcn314_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn314/dcn314_resource.c index f47cd281d6e7..7aab08151e72 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn314/dcn314_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn314/dcn314_resource.c @@ -926,6 +926,7 @@ static const struct dc_debug_options debug_defaults_drv = { .seamless_boot_odm_combine = true, .enable_legacy_fast_update = true, .using_dml2 = false, + .disable_dsc_power_gate = true, };
static const struct dc_panel_config panel_config_defaults = {