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Date: Mon, 16 May 2022 21:37:24 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Lijo Lazar <lijo.lazar@....com>, Mario Limonciello <mario.limonciello@....com>, Alex Deucher <alexander.deucher@....com> Subject: [PATCH 5.17 110/114] Revert "drm/amd/pm: keep the BACO feature enabled for suspend" From: Alex Deucher <alexander.deucher@....com> commit a56f445f807b0276fc0660c330bf93a9ea78e8ea upstream. This reverts commit eaa090538e8d21801c6d5f94590c3799e6a528b5. Commit ebc002e3ee78 ("drm/amdgpu: don't use BACO for reset in S3") stops using BACO for reset during suspend, so it's no longer necessary to leave BACO enabled during suspend. This fixes resume from suspend on the navy flounder dGPU in the ASUS ROG Strix G513QY. Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2008 Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1982 Reviewed-by: Lijo Lazar <lijo.lazar@....com> Reviewed-by: Mario Limonciello <mario.limonciello@....com> Signed-off-by: Alex Deucher <alexander.deucher@....com> Cc: stable@...r.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) --- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c @@ -1405,14 +1405,8 @@ static int smu_disable_dpms(struct smu_c { struct amdgpu_device *adev = smu->adev; int ret = 0; - /* - * TODO: (adev->in_suspend && !adev->in_s0ix) is added to pair - * the workaround which always reset the asic in suspend. - * It's likely that workaround will be dropped in the future. - * Then the change here should be dropped together. - */ bool use_baco = !smu->is_apu && - (((amdgpu_in_reset(adev) || (adev->in_suspend && !adev->in_s0ix)) && + ((amdgpu_in_reset(adev) && (amdgpu_asic_reset_method(adev) == AMD_RESET_METHOD_BACO)) || ((adev->in_runpm || adev->in_s4) && amdgpu_asic_supports_baco(adev)));
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