diff options
| author | Maíra Canal <mcanal@igalia.com> | 2026-03-30 14:51:43 -0300 |
|---|---|---|
| committer | Maíra Canal <mcanal@igalia.com> | 2026-04-02 07:53:16 -0300 |
| commit | aaefbdde9abdc43699e110679c0e10972a5e1c59 (patch) | |
| tree | 5e3da23d837b9fc7413fb15c04177688f54a30ea | |
| parent | f8995c2df519f382525ca4bc90553ad2ec611067 (diff) | |
drm/vc4: Release runtime PM reference after binding V3D
The vc4_v3d_bind() function acquires a runtime PM reference via
pm_runtime_resume_and_get() to access V3D registers during setup.
However, this reference is never released after a successful bind.
This prevents the device from ever runtime suspending, since the
reference count never reaches zero.
Release the runtime PM reference by adding pm_runtime_put_autosuspend()
after autosuspend is configured, allowing the device to runtime suspend
after the delay.
Fixes: 266cff37d7fc ("drm/vc4: v3d: Rework the runtime_pm setup")
Reviewed-by: Melissa Wen <mwen@igalia.com>
Link: https://patch.msgid.link/20260330-vc4-misc-fixes-v1-1-92defc940a29@igalia.com
Signed-off-by: Maíra Canal <mcanal@igalia.com>
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_v3d.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_v3d.c b/drivers/gpu/drm/vc4/vc4_v3d.c index 3ffe09bc89d2..d31b906cb8e7 100644 --- a/drivers/gpu/drm/vc4/vc4_v3d.c +++ b/drivers/gpu/drm/vc4/vc4_v3d.c @@ -481,6 +481,7 @@ static int vc4_v3d_bind(struct device *dev, struct device *master, void *data) pm_runtime_use_autosuspend(dev); pm_runtime_set_autosuspend_delay(dev, 40); /* a little over 2 frames. */ + pm_runtime_put_autosuspend(dev); return 0; |