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Message-ID: <3bc2c1c6-726a-4751-ae81-4d8336619025@gmail.com>
Date: Tue, 20 Feb 2024 13:25:05 +0200
From: Ceclan Dumitru <mitrutzceclan@...il.com>
To: Nuno Sá <noname.nuno@...il.com>
Cc: linus.walleij@...aro.org, brgl@...ev.pl, andy@...nel.org,
linux-gpio@...r.kernel.org, Lars-Peter Clausen <lars@...afoo.de>,
Jonathan Cameron <jic23@...nel.org>, Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>, Michael Walle <michael@...le.cc>,
Andy Shevchenko <andy.shevchenko@...il.com>, Arnd Bergmann <arnd@...db.de>,
ChiaEn Wu <chiaen_wu@...htek.com>, Niklas Schnelle <schnelle@...ux.ibm.com>,
Leonard Göhrs <l.goehrs@...gutronix.de>,
Mike Looijmans <mike.looijmans@...ic.nl>, Haibo Chen <haibo.chen@....com>,
Hugo Villeneuve <hvilleneuve@...onoff.com>,
David Lechner <dlechner@...libre.com>,
Ceclan Dumitru <dumitru.ceclan@...log.com>, linux-iio@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v13 3/3] iio: adc: ad7173: add AD7173 driver
On 2/20/24 12:38, Nuno Sá wrote:
> On Tue, 2024-02-20 at 11:43 +0200, Dumitru Ceclan wrote:
..
>
>> +};
>>
>> + indio_dev->name = st->info->name;
>> + indio_dev->modes = INDIO_DIRECT_MODE;
>> + indio_dev->info = &ad7173_info;
>> +
>> + spi->mode = SPI_MODE_3;
>> +
>
> I don't think we need the above. We should just enforce it to SPI_CPOL| SPI_CPHA in
> the bindings [2].
>
> [2]: https://elixir.bootlin.com/linux/latest/source/Documentation/devicetree/bindings/iio/imu/adi,adis16475.yaml#L45
Rob Herring V1:
"""
> + required:
> + - compatible
> + - reg
> + - interrupts
> + - spi-cpol
> + - spi-cpha
If the device(s) are not configurable, then you shouldn't need these 2
properties. The driver can hardcode the correct setting.
"""
ref:
https://lore.kernel.org/linux-iio/20230810205107.GA1136590-robh@kernel.org/
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