Commit 4cd078dc authored by Prike Liang's avatar Prike Liang Committed by Alex Deucher
Browse files

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: default avatarPrike Liang <Prike.Liang@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Acked-by: default avatarHuang Rui <ray.huang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent fec3124d

drivers/gpu/drm/amd/amdgpu/amdgpu.h

+2 −0
Original line number Diff line number Diff line
@@ -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,

drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c

+14 −0
Original line number Diff line number Diff line
@@ -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;

}