diff options
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | 14 |
2 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 0c469dec3d60..6e2953233231 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -1311,9 +1311,11 @@ int amdgpu_acpi_pcie_notify_device_ready(struct amdgpu_device *adev); void amdgpu_acpi_get_backlight_caps(struct amdgpu_device *adev, struct amdgpu_dm_backlight_caps *caps); +bool amdgpu_acpi_is_s0ix_supported(void); #else static inline int amdgpu_acpi_init(struct amdgpu_device *adev) { return 0; } static inline void amdgpu_acpi_fini(struct amdgpu_device *adev) { } +static inline bool amdgpu_acpi_is_s0ix_supported(void) { return false; } #endif int amdgpu_cs_find_mapping(struct amdgpu_cs_parser *parser, diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c index 165b02e267b0..4f4fda53c08a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c @@ -27,6 +27,7 @@ #include <linux/power_supply.h> #include <linux/pm_runtime.h> #include <acpi/video.h> +#include <acpi/actbl.h> #include <drm/drm_crtc_helper.h> #include "amdgpu.h" @@ -894,3 +895,16 @@ void amdgpu_acpi_fini(struct amdgpu_device *adev) unregister_acpi_notifier(&adev->acpi_nb); kfree(adev->atif); } + +/** + * amdgpu_acpi_is_s0ix_supported + * + * returns true if supported, false if not. + */ +bool amdgpu_acpi_is_s0ix_supported(void) +{ + if (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0) + return true; + + return false; +} |