From: Nikola Cornij <nikola.cornij@amd.com>
Date: Tue, 30 Apr 2019 21:54:31 +0000 (-0400)
Subject: drm/amd/display: Disable DSC power gating in Diags
X-Git-Tag: v5.3-rc1~81^2~10^2~54
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=b5d71c93963deb53ebd0f8e762d290f0cee2ff32;p=linux.git

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>
---

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)