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charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" add amdgpu_acpi_is_s0ix_supported() to check the platform whether support s0i3. Signed-off-by: Prike Liang Reviewed-by: Alex Deucher Acked-by: Huang Rui --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 ++ drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | 14 ++++++++++++++ 2 files changed, 16 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 20400ec..83ac06a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -1314,9 +1314,11 @@ 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 165b02e..fd66ac0 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c @@ -27,6 +27,7 @@ #include #include #include +#include #include #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() +{ + if (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0) + return true; + + return false; +} -- 2.7.4 _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx