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Commit e1052b35 authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/radeon/atpx: add a query for ATPX dGPU power control 



The runtime pm sequence is different depending on whether or
not the platform supports ATPX dGPU power control.

Reviewed-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Acked-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent d814b24f

drivers/gpu/drm/radeon/radeon_atpx_handler.c

+4 −0
Original line number Diff line number Diff line
@@ -63,6 +63,10 @@ bool radeon_has_atpx(void) { 
	return radeon_atpx_priv.atpx_detected;

}



bool radeon_has_atpx_dgpu_power_cntl(void) {

	return radeon_atpx_priv.atpx.functions.power_cntl;

}



/**

 * radeon_atpx_call - call an ATPX method

 *

drivers/gpu/drm/radeon/radeon_drv.c

+2 −0
Original line number Diff line number Diff line
@@ -163,9 +163,11 @@ void radeon_debugfs_cleanup(struct drm_minor *minor); 
#if defined(CONFIG_VGA_SWITCHEROO)

void radeon_register_atpx_handler(void);

void radeon_unregister_atpx_handler(void);

bool radeon_has_atpx_dgpu_power_cntl(void);

#else

static inline void radeon_register_atpx_handler(void) {}

static inline void radeon_unregister_atpx_handler(void) {}

static inline bool radeon_has_atpx_dgpu_power_cntl(void) { return false; }

#endif



int radeon_no_wb;