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drm/amdgpu: Add amdgpu_atpx_get_dhandle()

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Since it seems that some vendors are storing the ATIF ACPI methods under
the same handle that ATPX lives under instead of the device's own
handle, we're going to need to be able to retrieve this handle later so
we can probe for ATIF there.

Signed-off-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Lyude Paul 2018-06-25 21:09:06 -04:00 committed by Alex Deucher
parent 2cd5fe22d9
commit 4aa5d5eb82
2 changed files with 12 additions and 0 deletions
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6
drivers/gpu/drm/amd/amdgpu/amdgpu.h
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@ -1858,6 +1858,12 @@ static inline bool amdgpu_atpx_dgpu_req_power_for_displays(void) { return false;
static inline bool amdgpu_has_atpx(void) { return false; }
#endif
#if defined(CONFIG_VGA_SWITCHEROO) && defined(CONFIG_ACPI)
void *amdgpu_atpx_get_dhandle(void);
#else
static inline void *amdgpu_atpx_get_dhandle(void) { return NULL; }
#endif
/*
* KMS
*/

6
drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
View File

@ -90,6 +90,12 @@ bool amdgpu_atpx_dgpu_req_power_for_displays(void) {
return amdgpu_atpx_priv.atpx.dgpu_req_power_for_displays;
}
#if defined(CONFIG_ACPI)
void *amdgpu_atpx_get_dhandle(void) {
return amdgpu_atpx_priv.dhandle;
}
#endif
/**
* amdgpu_atpx_call - call an ATPX method
*