linux-kernel - [PATCH 5/9] drm/nouveau/kms/fbcon: Use pm_runtime_put

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Message-Id: <20200729213703.119137-6-lyude@redhat.com>
Date:   Wed, 29 Jul 2020 17:36:59 -0400
From:   Lyude Paul <lyude@...hat.com>
To:     nouveau@...ts.freedesktop.org
Cc:     Ben Skeggs <bskeggs@...hat.com>, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org (open list:DRM DRIVER FOR NVIDIA
        GEFORCE/QUADRO GPUS), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH 5/9] drm/nouveau/kms/fbcon: Use pm_runtime_put_autosuspend() in suspend work

While I don't know of any problems this has caused, it's definitely not
a great idea for us to potentially block in
nouveau_fbcon_set_suspend_work(). We don't really need to anyway, and
want to simply trigger the autosuspend timer instead.

Signed-off-by: Lyude Paul <lyude@...hat.com>
---
 drivers/gpu/drm/nouveau/nouveau_fbcon.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
index b936bf1c14dec..2234f012ca0c3 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
@@ -468,7 +468,7 @@ nouveau_fbcon_set_suspend_work(struct work_struct *work)
 	if (state == FBINFO_STATE_RUNNING) {
 		nouveau_fbcon_hotplug_resume(drm->fbcon);
 		pm_runtime_mark_last_busy(drm->dev->dev);
-		pm_runtime_put_sync(drm->dev->dev);
+		pm_runtime_put_autosuspend(drm->dev->dev);
 	}
 }
 
-- 
2.26.2