From: Andy Shevchenko <andriy.shevchenko@intel.com>
To: Joshua Crofts <crofts@kernel.org>
Cc: "Maxime Chevallier" <maxime.chevallier@bootlin.com>,
"Jonathan Cameron" <jic23@kernel.org>,
"David Lechner" <dlechner@baylibre.com>,
"Nuno Sá" <nuno.sa@analog.com>,
"Andy Shevchenko" <andy@kernel.org>,
"Rob Herring" <robh@kernel.org>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Matti Vaittinen" <mazziesaccount@gmail.com>,
"Rodolfo Giometti" <giometti@enneenne.com>,
"Marcelo Schmitt" <marcelo.schmitt@analog.com>,
"Antoniu Miclaus" <antoniu.miclaus@analog.com>,
"Angelo Dureghello" <adureghello@baylibre.com>,
"Tobias Sperling" <tobias.sperling@softing.com>,
"Eason Yang" <j2anfernee@gmail.com>,
"Marilene Andrade Garcia" <marilene.agarcia@gmail.com>,
"Cosmin Tanislav" <cosmin-gabriel.tanislav.xa@renesas.com>,
duje@dujemihanovic.xyz, herve.codina@bootlin.com,
thomas.petazzoni@bootlin.com, linux-iio@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 2/2] iio: adc: add driver for Texas Instruments TLA2528 adc
Date: Wed, 4 Nov 2026 17:41:30 +0200 [thread overview]
Message-ID: <autSKpnh0hORsYT4@ashevche-desk.local> (raw)
In-Reply-To: <20261104145641.000070f2@kernel.org>
On Wed, Nov 04, 2026 at 02:56:41PM +0100, Joshua Crofts wrote:
> On Wed, 4 Nov 2026 13:57:25 +0100
> Maxime Chevallier <maxime.chevallier@bootlin.com> wrote:
...
> > +#include <linux/types.h>
> > +#include <linux/units.h>
> > +
> > +#include <linux/iio/adc-helpers.h>
> > +#include <linux/iio/iio.h>
>
> + #include <asm/byteorder.h> for be16_to_cpu()
Yep, but please before linux/iio/* block.
...
> > +static int tla2528_read(struct tla2528 *tla2528, u8 channel, int *val)
> > +{
> > + __be16 data;
> > + int ret;
> > +
> > + guard(mutex)(&tla2528->lock);
> > +
> > + ret = regmap_update_bits(tla2528->regmap, TLA2528_CHANNEL_SEL_ADR,
> > + TLA2528_CHANNEL_SEL_MANUAL_CHID, channel);
> > + if (ret)
> > + return ret;
> > +
> > + ret = i2c_master_recv(tla2528->client, (char *)&data, sizeof(data));
> > + if (ret < 0)
> > + return ret;
>
> As rare as short reads may be, perhaps add a check whether the expected amount
> of bits have been returned from the device?
Bits? You probably mistyped bytes?
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2026-11-04 15:41 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-04 12:57 [PATCH v3 0/2] " Maxime Chevallier
2026-11-04 12:57 ` [PATCH v3 1/2] dt-bindings: iio: adc: add Texas Instruments TLA2528 Maxime Chevallier
2026-11-04 13:58 ` Joshua Crofts
2026-11-04 12:57 ` [PATCH v3 2/2] iio: adc: add driver for Texas Instruments TLA2528 adc Maxime Chevallier
2026-11-04 13:56 ` Joshua Crofts
2026-11-04 15:41 ` Andy Shevchenko [this message]
2026-11-04 15:45 ` Joshua Crofts
2026-11-04 18:06 ` Maxime Chevallier
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