drm/amdgpu: Avoid leaking PM domain on driver unbind (v2)

commit 458d876eb869d5a88b53074c6c271b8b9adc0f07 upstream.

We only support vga_switcheroo and runtime pm on PX/HG systems
so forcing runpm to 1 doesn't do anything useful anyway.

Only call vga_switcheroo_init_domain_pm_ops() for PX/HG so
that the cleanup path is correct as well.  This mirrors what
radeon does as well.

v2: rework the patch originally sent by Lukas (Alex)

Acked-by: Lukas Wunner <lukas@wunner.de>
Reported-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de> (v1)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index ce9797b..50f18f6 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1678,8 +1678,6 @@ int amdgpu_device_init(struct amdgpu_device *adev,
         * ignore it */
        vga_client_register(adev->pdev, adev, NULL, amdgpu_vga_set_decode);
 
-       if (amdgpu_runtime_pm == 1)
-               runtime = true;
        if (amdgpu_device_is_px(ddev))
                runtime = true;
        vga_switcheroo_register_client(adev->pdev, &amdgpu_switcheroo_ops, runtime);