diff options
| author | Prike Liang <Prike.Liang@amd.com> | 2020-09-09 10:55:39 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-11-13 17:29:45 -0500 |
| commit | 4cd078dc654d7ead65746fba04b06e5ab7e97bff (patch) | |
| tree | a7536e9d7cebb6da87116f4c627fb94b60378dd5 /drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | |
| parent | fec3124dc627c2cefc276534130898c3fb38dca1 (diff) | |
| download | linux-4cd078dc654d7ead65746fba04b06e5ab7e97bff.tar.bz2 | |
drm/amdgpu: add s0i3 capacity check for s0i3 routine (v2)
add amdgpu_acpi_is_s0ix_supported() to check the platform
whether support s0i3.
v2: fix empty function parameters warning (void)
Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | 14 |
1 files changed, 14 insertions, 0 deletions
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; +} |