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-rw-r--r--meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3011-drm-amd-display-Use-the-maximum-link-setting-which-E.patch33
1 files changed, 33 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3011-drm-amd-display-Use-the-maximum-link-setting-which-E.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3011-drm-amd-display-Use-the-maximum-link-setting-which-E.patch
new file mode 100644
index 00000000..4e859709
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3011-drm-amd-display-Use-the-maximum-link-setting-which-E.patch
@@ -0,0 +1,33 @@
+From 9ddbbe4c08e05045c68510b23da4cd5ea9db9b9a Mon Sep 17 00:00:00 2001
+From: Hugo Hu <hugo.hu@amd.com>
+Date: Thu, 7 Dec 2017 15:33:22 +0800
+Subject: [PATCH 3011/4131] drm/amd/display: Use the maximum link setting which
+ EDP reported.
+
+Signed-off-by: Hugo Hu <hugo.hu@amd.com>
+Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
+Acked-by: Harry Wentland <harry.wentland@amd.com>
+---
+ drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+index 00528b2..61e8c3e 100644
+--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
++++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+@@ -1470,6 +1470,12 @@ void decide_link_settings(struct dc_stream_state *stream,
+ return;
+ }
+
++ /* EDP use the link cap setting */
++ if (stream->sink->sink_signal == SIGNAL_TYPE_EDP) {
++ *link_setting = link->verified_link_cap;
++ return;
++ }
++
+ /* search for the minimum link setting that:
+ * 1. is supported according to the link training result
+ * 2. could support the b/w requested by the timing
+--
+2.7.4
+