Hi Tomasz,
On Mon, 2020-06-01 at 20:47 +0200, Tomasz Figa wrote:
> On Wed, May 27, 2020 at 11:03 AM Dongchun Zhu <dongchun.zhu@xxxxxxxxxxxx> wrote:
> >
> > Hi Tomasz,
> >
> > On Mon, 2020-05-25 at 13:45 +0200, Tomasz Figa wrote:
> > > On Fri, May 22, 2020 at 11:27 AM Dongchun Zhu <dongchun.zhu@xxxxxxxxxxxx> wrote:
> > > >
> > > > Hi Tomasz,
> > > >
> > > > Thanks for the review. My replies are as below.
> > > >
> > > > On Thu, 2020-05-21 at 19:51 +0000, Tomasz Figa wrote:
> > > > > Hi Dongchun, Sakari,
> > > > >
> > > > > On Mon, May 18, 2020 at 09:27:31PM +0800, Dongchun Zhu wrote:
> > > [snip]
> > > > > > + pm_runtime_enable(dev);
> > > > > > + if (!pm_runtime_enabled(dev)) {
> > > > > > + ret = dw9768_runtime_resume(dev);
> > > > > > + if (ret < 0) {
> > > > > > + dev_err(dev, "failed to power on: %d\n", ret);
> > > > > > + goto entity_cleanup;
> > > > > > + }
> > > > > > + }
> > > > > > +
> > > > > > + ret = v4l2_async_register_subdev(&dw9768->sd);
> > > > > > + if (ret < 0)
> > > > > > + goto entity_cleanup;
> > > > > > +
> > > > > > + return 0;
> > > > > > +
> > > > > > +entity_cleanup:
> > > > >
> > > > > Need to power off if the code above powered on.
> > > > >
> > > >
> > > > Thanks for the reminder.
> > > > If there is something wrong with runtime PM, actuator is to be powered
> > > > on via dw9768_runtime_resume() API.
> > > > When actuator sub-device is powered on completely and async registered
> > > > successfully, we shall power off it afterwards.
> > > >
> > >
> > > The code above calls dw9768_runtime_resume() if
> > > !pm_runtime_enabled(dev), but the clean-up code below the
> > > entity_cleanup label doesn't have the corresponding
> > > dw9768_runtime_suspend() call.
> > >
> >
> > Did you mean the 'entity_cleanup' after v4l2_async_register_subdev()?
>
> Yes.
>
> > Actually I made some changes for OV02A V9, according to this comment.
> > Could you help review that change? Thanks.
>
> Sure, I will take a look.
>
Thanks.
Sorry, I just wanna make sure the change is okay for next release.
May we use the check like OV02A V9 did?
ret = v4l2_async_register_subdev(&dw9768->sd);
if (ret < 0) {
if (!pm_runtime_enabled(dev))
dw9768_runtime_suspend(dev);
goto entity_cleanup;
}
> Best regards,
> Tomasz
