提交 e9bef455 编写于 作者: A Alex Deucher

Revert "drm/amdgpu: disable runtime pm on PX laptops without dGPU power control"

This reverts commit bedf2a65.

See the radeon revert for an extended description.

Cc: stable@vger.kernel.org
上级 5d5b7803
......@@ -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(struct amdgpu_atpx_functions *f, u32 mas
*/
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;
......
......@@ -62,12 +62,6 @@ 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;
......@@ -1485,7 +1479,7 @@ int amdgpu_device_init(struct amdgpu_device *adev,
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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