drm/amdgpu/atpx: check for ATIF dGPU wake for display events support
Some ATPX laptops implement special circuitry to generate
display hotplug events via ACPI when the dGPU is powered off.
Check if this is supported.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 44255cb..9d79e4b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -2450,11 +2450,13 @@
void amdgpu_unregister_atpx_handler(void);
bool amdgpu_has_atpx_dgpu_power_cntl(void);
bool amdgpu_is_atpx_hybrid(void);
+bool amdgpu_atpx_dgpu_req_power_for_displays(void);
#else
static inline void amdgpu_register_atpx_handler(void) {}
static inline void amdgpu_unregister_atpx_handler(void) {}
static inline bool amdgpu_has_atpx_dgpu_power_cntl(void) { return false; }
static inline bool amdgpu_is_atpx_hybrid(void) { return false; }
+static inline bool amdgpu_atpx_dgpu_req_power_for_displays(void) { return false; }
#endif
/*