Re: [PATCH v3 08/11] video: backlight: lm3533_bl: Improve linear sysfs logic

From: Andy Shevchenko

Date: Tue Jun 02 2026 - 07:15:45 EST


On Tue, Jun 02, 2026 at 01:19:00PM +0300, Svyatoslav Ryhel wrote:
> вт, 2 черв. 2026 р. о 11:09 Andy Shevchenko <andriy.shevchenko@xxxxxxxxx> пише:
> > On Mon, Jun 01, 2026 at 06:18:28PM +0300, Svyatoslav Ryhel wrote:

...

> > > if (kstrtoul(buf, 0, &linear))
> > > return -EINVAL;
> >
> > Besides _assign_bits() in the below, side note here to unshadow error codes:
> >
> > ret = kstrtoul(buf, 0, &linear);
> > if (ret)
> > return ret;
> >
> > (obviously in a separate change).
>
> Won't happen in this patches.

You mean both suggestions or you are talking about kstrotoul() only? If it's
only about the latter, it's fine with me, but _assign_bits() makes sense to do
in this patch as you already change the parameters enough to make it better.

...

> > > ret = regmap_update_bits(bl->lm3533->regmap, LM3533_REG_CTRLBANK_AB_BCONF,
> > > - mask, val);
> > > + CTRLBANK_AB_BCONF_MODE(id),
> > > + linear ? CTRLBANK_AB_BCONF_MODE(id) : 0);
> > > if (ret)
> > > return ret;

^^^ left for the context.

--
With Best Regards,
Andy Shevchenko