4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Alex Deucher <alexander.deucher@xxxxxxx>
commit e9bef455af8eb0e837e179aab8988ae2649fd8d3 upstream.
This reverts commit bedf2a65c1aa8fb29ba8527fd00c0f68ec1f55f1.
See the radeon revert for an extended description.
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c | 8 ++++----
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 8 +-------
2 files changed, 5 insertions(+), 11 deletions(-)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
@@ -63,10 +63,6 @@ bool amdgpu_has_atpx(void) {
return amdgpu_atpx_priv.atpx_detected;
}
-bool amdgpu_has_atpx_dgpu_power_cntl(void) {
- return amdgpu_atpx_priv.atpx.functions.power_cntl;
-}
-
/**
* amdgpu_atpx_call - call an ATPX method
*
@@ -146,6 +142,10 @@ static void amdgpu_atpx_parse_functions(
*/
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.px_params) {
union acpi_object *info;
struct atpx_px_params output;
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -61,12 +61,6 @@ static const char *amdgpu_asic_name[] =
"LAST",
};
-#if defined(CONFIG_VGA_SWITCHEROO)
-bool amdgpu_has_atpx_dgpu_power_cntl(void);
-#else
-static inline bool amdgpu_has_atpx_dgpu_power_cntl(void) { return false; }
-#endif
-
bool amdgpu_device_is_px(struct drm_device *dev)
{
struct amdgpu_device *adev = dev->dev_private;
@@ -1475,7 +1469,7 @@ int amdgpu_device_init(struct amdgpu_dev
if (amdgpu_runtime_pm == 1)
runtime = true;
- if (amdgpu_device_is_px(ddev) && amdgpu_has_atpx_dgpu_power_cntl())
+ if (amdgpu_device_is_px(ddev))
runtime = true;
vga_switcheroo_register_client(adev->pdev, &amdgpu_switcheroo_ops, runtime);
if (runtime)
--
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