From: Andy Shevchenko <andriy.shevchenko@intel.com>
To: Antoniu Miclaus <antoniu.miclaus@analog.com>
Cc: "Lars-Peter Clausen" <lars@metafoo.de>,
"Michael Hennerich" <Michael.Hennerich@analog.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>,
"Olivier Moysan" <olivier.moysan@foss.st.com>,
"Mark Brown" <broonie@kernel.org>,
linux-iio@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org
Subject: Re: [PATCH v2 0/4] iio: adc: ad4080: add support for AD4880 dual-channel ADC
Date: Sun, 8 Feb 2026 14:50:23 +0200 [thread overview]
Message-ID: <aYiGj_TYelvJdVaR@smile.fi.intel.com> (raw)
In-Reply-To: <cover.1770393792.git.antoniu.miclaus@analog.com>
On Fri, Feb 06, 2026 at 06:07:12PM +0200, Antoniu Miclaus wrote:
> Add support for the AD4880, a dual-channel 20-bit 40MSPS SAR ADC from
> the same family as AD4080.
>
> The AD4880 has two independent ADC channels, each with its own SPI
> configuration interface and LVDS data output. The driver uses
> spi_new_ancillary_device() for the second channel's SPI and requires
> two io-backend instances for the data interfaces.
I believe there is a better approach, what you need is rather a flag
to SPI core to tell that this is the device with shared CS.
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2026-02-08 12:50 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-06 16:07 [PATCH v2 0/4] iio: adc: ad4080: add support for AD4880 dual-channel ADC Antoniu Miclaus
2026-02-06 16:07 ` [PATCH v2 1/4] spi: allow ancillary devices to share parent's chip selects Antoniu Miclaus
2026-02-07 18:09 ` David Lechner
2026-02-06 16:07 ` [PATCH v2 2/4] iio: backend: add devm_iio_backend_get_by_index() Antoniu Miclaus
2026-02-07 14:57 ` Jonathan Cameron
2026-02-07 18:13 ` David Lechner
2026-02-08 9:24 ` Nuno Sá
2026-02-09 15:28 ` David Lechner
2026-02-09 16:47 ` Nuno Sá
2026-02-09 17:48 ` Nuno Sá
2026-02-09 18:20 ` David Lechner
2026-02-06 16:07 ` [PATCH v2 3/4] dt-bindings: iio: adc: ad4080: add AD4880 support Antoniu Miclaus
2026-02-07 10:41 ` Krzysztof Kozlowski
2026-02-08 9:16 ` Nuno Sá
2026-02-08 9:20 ` Krzysztof Kozlowski
2026-02-09 16:43 ` Nuno Sá
2026-02-09 17:13 ` Krzysztof Kozlowski
2026-02-09 17:45 ` Nuno Sá
2026-02-06 16:07 ` [PATCH v2 4/4] iio: adc: ad4080: add support for AD4880 dual-channel ADC Antoniu Miclaus
2026-02-07 15:04 ` Jonathan Cameron
2026-02-07 18:29 ` David Lechner
2026-02-08 9:26 ` Nuno Sá
2026-02-08 12:50 ` Andy Shevchenko [this message]
2026-02-14 16:08 ` [PATCH v2 0/4] " Jonathan Cameron
2026-02-14 18:11 ` Andy Shevchenko
2026-02-14 18:31 ` David Lechner
2026-02-15 8:03 ` Andy Shevchenko
2026-02-15 23:16 ` David Lechner
2026-02-16 7:14 ` Andy Shevchenko
2026-02-16 18:53 ` David Lechner
2026-02-17 8:28 ` Andy Shevchenko
2026-02-17 22:55 ` David Lechner
2026-02-18 19:08 ` Jonathan Cameron
2026-02-20 10:45 ` Andy Shevchenko
2026-02-25 19:07 ` (subset) " Mark Brown
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