linux-kernel - Re: [PATCH v4 2/2] iio: adc: Add TI ADS1100 and ADS1000

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Message-ID: <ZAX/lGR9srDRIzl7@smile.fi.intel.com>
Date:   Mon, 6 Mar 2023 16:58:28 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Mike Looijmans <mike.looijmans@...ic.nl>
Cc:     devicetree@...r.kernel.org, linux-iio@...r.kernel.org,
        Caleb Connolly <caleb.connolly@...aro.org>,
        ChiYuan Huang <cy_huang@...htek.com>,
        ChiaEn Wu <chiaen_wu@...htek.com>,
        Cosmin Tanislav <demonsingur@...il.com>,
        Ibrahim Tilki <Ibrahim.Tilki@...log.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Marcus Folkesson <marcus.folkesson@...il.com>,
        Ramona Bolboaca <ramona.bolboaca@...log.com>,
        William Breathitt Gray <william.gray@...aro.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 2/2] iio: adc: Add TI ADS1100 and ADS1000

On Mon, Mar 06, 2023 at 03:44:23PM +0100, Mike Looijmans wrote:
> On 06-03-2023 14:29, Andy Shevchenko wrote:

...

> Combining it all, I'd arrive at this code:
> 
>     gain = DIV_ROUNDUP_CLOSEST(microvolts, BIT(15)) * MILLI / val2;
>     if (gain < BIT(0) || gain > BIT(3))
>         return -EINVAL;
> 
>     ads1100_set_config_bits(data, ADS1100_PGA_MASK, ffs(gain) - 1);

Fine by me.

...

> > > +			return ads1100_set_config_bits(
> > > +					data, ADS1100_DR_MASK,
> > > +					FIELD_PREP(ADS1100_DR_MASK, i));
> > Wrong indentation.
> > Please, check all your code for this kind of issues.
> > 
> I always run it through checkpatch.pl but that didn't report on this
> indentation.

Checkpatch is:

1) not comprehensive;
2) not must-to-follow;

tool.

Use your common sense. You have a lot of room on the previous line at least
for 'data'. Trailing opening ( is not good indentation. But sometimes might
be unavoidable.

> A bit of digging in the scripts directory yields "Lindent". Feeding my file
> to that indeed changes those lines (and some others too). I'll run my next
> patch through that.

If it will look nice, why not?

-- 
With Best Regards,
Andy Shevchenko