From: Alex Deucher <alexander.deucher@amd.com>
Date: Thu, 23 Jun 2016 15:53:12 +0000 (-0400)
Subject: drm/amdgpu: skip invalid ip blocks in ip helpers
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9ecbe7f506d36f7dfb7ce06b2c35b252fa6d6ed8;p=linux-beck.git

drm/amdgpu: skip invalid ip blocks in ip helpers

Skip IP blocks that are not enabled.

Reviewed-by: Chunming zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index e3cfee18fa68..a1364778bd3b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1075,6 +1075,8 @@ int amdgpu_set_clockgating_state(struct amdgpu_device *adev,
 	int i, r = 0;
 
 	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if (!adev->ip_block_status[i].valid)
+			continue;
 		if (adev->ip_blocks[i].type == block_type) {
 			r = adev->ip_blocks[i].funcs->set_clockgating_state((void *)adev,
 									    state);
@@ -1093,6 +1095,8 @@ int amdgpu_set_powergating_state(struct amdgpu_device *adev,
 	int i, r = 0;
 
 	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if (!adev->ip_block_status[i].valid)
+			continue;
 		if (adev->ip_blocks[i].type == block_type) {
 			r = adev->ip_blocks[i].funcs->set_powergating_state((void *)adev,
 									    state);
@@ -1110,6 +1114,8 @@ int amdgpu_wait_for_idle(struct amdgpu_device *adev,
 	int i, r;
 
 	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if (!adev->ip_block_status[i].valid)
+			continue;
 		if (adev->ip_blocks[i].type == block_type) {
 			r = adev->ip_blocks[i].funcs->wait_for_idle((void *)adev);
 			if (r)
@@ -1127,6 +1133,8 @@ bool amdgpu_is_idle(struct amdgpu_device *adev,
 	int i;
 
 	for (i = 0; i < adev->num_ip_blocks; i++) {
+		if (!adev->ip_block_status[i].valid)
+			continue;
 		if (adev->ip_blocks[i].type == block_type)
 			return adev->ip_blocks[i].funcs->is_idle((void *)adev);
 	}