1 files changed, 39 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2541-drm-amd-display-Disable-DSC-power-gating-in-Diags.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2541-drm-amd-display-Disable-DSC-power-gating-in-Diags.patch
new file mode 100644
index 00000000..72ac7dda
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2541-drm-amd-display-Disable-DSC-power-gating-in-Diags.patch
@@ -0,0 +1,39 @@
+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
+