[Intel-gfx] [PATCH] drm/i915/lpe: Mark LPE audio as "no callbacks"

[Chris Wilson]

The LPE audio is a child device of i915, it is powered up and down
alongside the igfx and presents no independent runtime interface. This
aptly fulfils the description of a "No-Callback" Device, so mark it
thus.

Fixes: 183c00350ccd ("drm/i915: Fix runtime PM for LPE audio")
Testcase: igt/pm_rpm/basic-pci-d3-state
Testcase: igt/pm_rpm/basic-rte
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Takashi Iwai <tiwai at suse.de>
Cc: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
Cc: stable at vger.kernel.org
---
 drivers/gpu/drm/i915/intel_lpe_audio.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_lpe_audio.c b/drivers/gpu/drm/i915/intel_lpe_audio.c
index 6269750e2b54..430732720e65 100644
--- a/drivers/gpu/drm/i915/intel_lpe_audio.c
+++ b/drivers/gpu/drm/i915/intel_lpe_audio.c
@@ -126,9 +126,7 @@ lpe_audio_platdev_create(struct drm_i915_private *dev_priv)
 		return platdev;
 	}
 
-	pm_runtime_forbid(&platdev->dev);
-	pm_runtime_set_active(&platdev->dev);
-	pm_runtime_enable(&platdev->dev);
+	pm_runtime_no_callbacks(&platdev->dev);
 
 	return platdev;
 }
-- 
2.18.0