Re: [PATCH 3/4] media: mt9m111: fix device power usage

From: Sakari Ailus
Date: Mon Aug 22 2022 - 05:19:27 EST


On Mon, Aug 22, 2022 at 09:54:26AM +0200, Marco Felsch wrote:
> Hi Sakari,
>
> On 22-08-22, Sakari Ailus wrote:
> > Hi Marco,
> >
> > On Thu, Aug 18, 2022 at 04:47:11PM +0200, Marco Felsch wrote:
> > > Currently the driver turn off the power after probe and toggle it during
> > > .stream by using the .s_power callback. This is problematic since other
> > > callbacks like .set_fmt accessing the hardware as well which will fail.
> > > So in the end the default format is the only supported format.
> >
> > It'd be much better to add runtime PM support to the driver instead.
>
> I got your point, but didn't have the time for it right now, I will drop
> the patch from my v2.

The API is different but generally involves doing more or less the same
what this and the 4th patch do together.

--
Sakari Ailus