1 files changed, 37 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/files/0943-drm-amd-powerplay-add-default-clockgating-handling.patch b/common/recipes-kernel/linux/files/0943-drm-amd-powerplay-add-default-clockgating-handling.patch
new file mode 100644
index 00000000..3b224197
--- /dev/null
+++ b/common/recipes-kernel/linux/files/0943-drm-amd-powerplay-add-default-clockgating-handling.patch
@@ -0,0 +1,37 @@
+From 9ccec0e41eb87aa3e2711993518da784d395099c Mon Sep 17 00:00:00 2001
+From: Flora Cui <Flora.Cui@amd.com>
+Date: Mon, 15 Feb 2016 15:45:59 +0800
+Subject: [PATCH 0943/1110] drm/amd/powerplay: add default clockgating handling
+
+This is to workaround regression introduced in
+46c34bcb6a15dd85329a39a5e72c62108626acdc. It should be reverted with a
+final fix.
+
+Signed-off-by: Flora Cui <Flora.Cui@amd.com>
+Reviewed-by: Rex Zhu <Rex.Zhu@amd.com>
+---
+ drivers/gpu/drm/amd/powerplay/amd_powerplay.c | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
+index 94b7809..32a6a6f 100644
+--- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
++++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
+@@ -188,10 +188,12 @@ static int pp_set_clockgating_state(void *handle,
+ 
+ 	hwmgr = ((struct pp_instance *)handle)->hwmgr;
+ 
+-	if (hwmgr == NULL || hwmgr->hwmgr_func == NULL ||
+-			hwmgr->hwmgr_func->update_clock_gatings == NULL)
++	if (hwmgr == NULL || hwmgr->hwmgr_func == NULL)
+ 			return -EINVAL;
+ 
++	if (hwmgr->hwmgr_func->update_clock_gatings == NULL)
++		return 0;
++
+ 	if (state == AMD_CG_STATE_UNGATE)
+ 		pp_state = 0;
+ 	else
+-- 
+2.7.4
+