On Fri, Sep 15, 2023 at 08:31:24PM +0000, Sakari Ailus wrote: > On Fri, Sep 15, 2023 at 12:42:39PM +0300, Laurent Pinchart wrote: > > On Fri, Sep 15, 2023 at 10:28:07AM +0300, Sakari Ailus wrote: > > > Enable runtime PM before registering the async sub-device as the ipu > > > bridge may try to resume the device immediately after the async sub-device > > > > I wouldn't mention ipu bridge there, as this driver is not specific to a > > particular CSI-2 receiver. > > How exactly would you reword this? > > The problem may only happen with the IPU bridge --- ACPI systems otherwise > handle device power states. Once a subdev is registered is could be used immediately by the host driver, regardless of what host driver that is. Making sure to finalize all initialization before registering the subdev is a good overall practice. -- Regards, Laurent Pinchart
