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drm/amdgpu: Check pmops for desired suspend state

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[Why]
User might change the suspend behaviour from OS.

[How]
Check with pm for target suspend state and set s0ix
flag only for s2idle state.

v2: User might change default suspend state, use target state
v3: squash in build fix

Suggested-by: Lijo Lazar <Lijo.Lazar@amd.com>
Signed-off-by: Pratik Vishwakarma <Pratik.Vishwakarma@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Pratik Vishwakarma 2021-07-23 18:08:40 +05:30 • committed by Alex Deucher
parent 6aade587d3
commit 91e273712a
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
View file

@ -26,6 +26,7 @@
#include <linux/slab.h>
#include <linux/power_supply.h>
#include <linux/pm_runtime.h>
#include <linux/suspend.h>
#include <acpi/video.h>
#include <acpi/actbl.h>
@ -1042,7 +1043,7 @@ bool amdgpu_acpi_is_s0ix_supported(struct amdgpu_device *adev)
#if defined(CONFIG_AMD_PMC) || defined(CONFIG_AMD_PMC_MODULE)
if (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0) {
if (adev->flags & AMD_IS_APU)
return true;
return pm_suspend_target_state == PM_SUSPEND_TO_IDLE;
}
#endif
return false;