From: Maíra Canal Date: Mon, 30 Mar 2026 17:51:43 +0000 (-0300) Subject: drm/vc4: Release runtime PM reference after binding V3D X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=aaefbdde9abdc43699e110679c0e10972a5e1c59;p=thirdparty%2Fkernel%2Flinux.git 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 Link: https://patch.msgid.link/20260330-vc4-misc-fixes-v1-1-92defc940a29@igalia.com Signed-off-by: Maíra Canal --- 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;