linux-kernel - Re: [PATCH v2 2/2] iio: adc: Add support for AD4000

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Date: Sat, 13 Apr 2024 17:19:59 +0100
From: Jonathan Cameron <jic23@...nel.org>
To: David Lechner <dlechner@...libre.com>
Cc: Marcelo Schmitt <marcelo.schmitt@...log.com>, lars@...afoo.de,
 Michael.Hennerich@...log.com, robh+dt@...nel.org,
 krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
 marcelo.schmitt1@...il.com, linux-iio@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/2] iio: adc: Add support for AD4000


> 
> > +
> > +       ret = ad4000_read_sample(st, chan);
> > +       if (ret)
> > +               return ret;
> > +
> > +       if (st->cnv_gpio)
> > +               gpiod_set_value_cansleep(st->cnv_gpio, GPIOD_OUT_LOW);
> > +
> > +       if (chan->scan_type.storagebits > 16)
> > +               sample = get_unaligned_be32(&st->scan.data);
> > +       else
> > +               sample = get_unaligned_be16(&st->scan.data);  
> 
> data is aligned, so be32/16_to_cpu() should be fine. Also, Jonathan
> will suggest to use &st->scan.data.sample_b32/16 here too. :-)

Sparse may well complain as well and no one likes build warnings ;)