On Wed, Sep 14, 2016 at 2:49 PM, Alex Deucher <alexdeuc...@gmail.com> wrote: > 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.deuc...@amd.com>
Ping on this series? Alex > --- > drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 ++ > drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c | 9 +++++++++ > 2 files changed, 11 insertions(+) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h > b/drivers/gpu/drm/amd/amdgpu/amdgpu.h > index 588baaf..681e920 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h > @@ -2463,11 +2463,13 @@ void amdgpu_register_atpx_handler(void); > 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 > > /* > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c > b/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c > index 49de926..550c5ee 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c > @@ -29,6 +29,7 @@ struct amdgpu_atpx { > acpi_handle handle; > struct amdgpu_atpx_functions functions; > bool is_hybrid; > + bool dgpu_req_power_for_displays; > }; > > static struct amdgpu_atpx_priv { > @@ -73,6 +74,10 @@ bool amdgpu_is_atpx_hybrid(void) { > return amdgpu_atpx_priv.atpx.is_hybrid; > } > > +bool amdgpu_atpx_dgpu_req_power_for_displays(void) { > + return amdgpu_atpx_priv.atpx.dgpu_req_power_for_displays; > +} > + > /** > * amdgpu_atpx_call - call an ATPX method > * > @@ -213,6 +218,10 @@ static int amdgpu_atpx_validate(struct amdgpu_atpx *atpx) > atpx->is_hybrid = true; > } > > + atpx->dgpu_req_power_for_displays = false; > + if (valid_bits & ATPX_DGPU_REQ_POWER_FOR_DISPLAYS) > + atpx->dgpu_req_power_for_displays = true; > + > return 0; > } > > -- > 2.5.5 > _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx