drm/amdgpu: Set DPM_FLAG_NEVER_SKIP when enabling PM-runtime

BugLink: https://bugs.launchpad.net/bugs/1837813
commit d33158530660bc89be3cc870a2152e4e9a76cac7 upstream.

Based on a similar patch from Rafael for radeon.

When using ATPX to control dGPU power, the state is not retained
across suspend and resume cycles by default.  This can probably
be loosened for Hybrid Graphics (_PR3) laptops where I think the
state is properly retained.

Fixes: c62ec4610c40 ("PM / core: Fix direct_complete handling for devices with no callbacks")
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index c8b7abf887edf0f81c8e7a9e2b9d22ac70954876..a8ba0bc0d1811c19b747c609e9b582f020636047 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -163,6 +163,7 @@ int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
        amdgpu_amdkfd_device_init(adev);
 
        if (amdgpu_device_is_px(dev)) {
+               dev_pm_set_driver_flags(dev->dev, DPM_FLAG_NEVER_SKIP);
                pm_runtime_use_autosuspend(dev->dev);
                pm_runtime_set_autosuspend_delay(dev->dev, 5000);
                pm_runtime_set_active(dev->dev);