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From 41c81fd50f5d01790cc34c3c7fedfa442eed6ff0 Mon Sep 17 00:00:00 2001
From: Nikola Cornij <nikola.cornij@amd.com>
Date: Tue, 30 Apr 2019 17:54:31 -0400
Subject: [PATCH 2541/2940] drm/amd/display: Disable DSC power gating in Diags
[why]
With DSC power gating enabled, one of the register reads times out occasionally,
causing a DSC test to fail.
[how]
Disable DSC power gating in Diags.
NOTE: This has to be reverted once the problems with DSC power gating are
resolved.
Signed-off-by: Nikola Cornij <nikola.cornij@amd.com>
Reviewed-by: Nevenko Stupar <Nevenko.Stupar@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
index e7a8a13a9d33..ac65794c7fa6 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -723,6 +723,9 @@ static const struct dc_debug_options debug_defaults_diags = {
.disable_pplib_wm_range = true,
.disable_stutter = true,
.scl_reset_length10 = true,
+#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
+ .disable_dsc_power_gate = true,
+#endif
};
void dcn20_dpp_destroy(struct dpp **dpp)
--
2.17.1
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