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From b6a77ba390852ca3da5c1d76a8290d068d04349e Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Mon, 25 Apr 2016 13:14:47 -0400
Subject: [PATCH 1039/1110] drm/amdgpu: print a message if ATPX dGPU power
control is missing
It will help identify problematic boards.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
index 3c89586..4e38622 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
@@ -144,7 +144,10 @@ static int amdgpu_atpx_validate(struct amdgpu_atpx *atpx)
{
/* make sure required functions are enabled */
/* dGPU power control is required */
- atpx->functions.power_cntl = true;
+ if (atpx->functions.power_cntl == false) {
+ printk("ATPX dGPU power cntl not present, forcing\n");
+ atpx->functions.power_cntl = true;
+ }
if (atpx->functions.px_params) {
union acpi_object *info;
--
2.7.4
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