1 files changed, 33 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4707-drm-amd-display-update-dispclk-and-dppclk-vco-freque.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4707-drm-amd-display-update-dispclk-and-dppclk-vco-freque.patch
new file mode 100644
index 00000000..f8c681de
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4707-drm-amd-display-update-dispclk-and-dppclk-vco-freque.patch
@@ -0,0 +1,33 @@
+From 40c811e3469cfcdf491ec358906752e99f71b56c Mon Sep 17 00:00:00 2001
+From: Eric Yang <Eric.Yang2@amd.com>
+Date: Fri, 15 Nov 2019 12:04:25 -0500
+Subject: [PATCH 4707/4736] drm/amd/display: update dispclk and dppclk vco
+ frequency
+
+Value obtained from DV is not allowing 8k60 CTA mode with DSC to
+pass, after checking real value being used in hw, find out that
+correct value is 3600, which will allow that mode.
+
+Signed-off-by: Eric Yang <Eric.Yang2@amd.com>
+Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
+Acked-by: Leo Li <sunpeng.li@amd.com>
+---
+ drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
+index 23727c3f2e01..dd66be12321a 100644
+--- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
++++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
+@@ -255,7 +255,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn2_1_soc = {
+ 	.vmm_page_size_bytes = 4096,
+ 	.dram_clock_change_latency_us = 23.84,
+ 	.return_bus_width_bytes = 64,
+-	.dispclk_dppclk_vco_speed_mhz = 3550,
++	.dispclk_dppclk_vco_speed_mhz = 3600,
+ 	.xfc_bus_transport_time_us = 4,
+ 	.xfc_xbuf_latency_tolerance_us = 4,
+ 	.use_urgent_burst_bw = 1,
+-- 
+2.17.1
+