From: David Lechner <dlechner@baylibre.com>
To: Jonathan Santos <Jonathan.Santos@analog.com>,
linux-iio@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org
Cc: andy@kernel.org, nuno.sa@analog.com,
Michael.Hennerich@analog.com, marcelo.schmitt@analog.com,
jic23@kernel.org, robh@kernel.org, krzk+dt@kernel.org,
conor+dt@kernel.org, marcelo.schmitt1@gmail.com,
linus.walleij@linaro.org, brgl@bgdev.pl, lgirdwood@gmail.com,
broonie@kernel.org, jonath4nns@gmail.com
Subject: Re: [PATCH v8 08/11] iio: adc: ad7768-1: add support for Synchronization over SPI
Date: Thu, 15 May 2025 17:46:17 -0500 [thread overview]
Message-ID: <4d3b02c6-0cca-45c8-827d-3ab1dac401af@baylibre.com> (raw)
In-Reply-To: <59f45c9af16fa68f2a479f824129f5a9f2cd0997.1747175187.git.Jonathan.Santos@analog.com>
On 5/15/25 4:13 PM, Jonathan Santos wrote:
> The synchronization method using GPIO requires the generated pulse to be
> truly synchronous with the base MCLK signal. When it is not possible to
> do that in hardware, the datasheet recommends using synchronization over
> SPI, where the generated pulse is already synchronous with MCLK. This
> requires the SYNC_OUT pin to be connected to the SYNC_IN pin.
>
> Use trigger-sources property to enable device synchronization over SPI
> and multi-device synchronization while replacing sync-in-gpios property.
>
> Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com>
> ---
Reviewed-by: David Lechner <dlechner@baylibre.com>
next prev parent reply other threads:[~2025-05-15 22:46 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-15 21:11 [PATCH v8 00/11] iio: adc: ad7768-1: Add features, improvements, and fixes Jonathan Santos
2025-05-15 21:12 ` [PATCH v8 01/11] dt-bindings: trigger-source: add generic GPIO trigger source Jonathan Santos
2025-05-15 21:12 ` [PATCH v8 02/11] dt-bindings: iio: adc: ad7768-1: add trigger-sources property Jonathan Santos
2025-05-15 21:12 ` [PATCH v8 03/11] dt-bindings: iio: adc: ad7768-1: Document GPIO controller Jonathan Santos
2025-05-15 21:13 ` [PATCH v8 04/11] dt-bindings: iio: adc: ad7768-1: document regulator provider property Jonathan Santos
2025-05-15 21:13 ` [PATCH v8 05/11] iio: adc: ad7768-1: add regulator to control VCM output Jonathan Santos
2025-05-15 21:13 ` [PATCH v8 06/11] iio: adc: ad7768-1: Add GPIO controller support Jonathan Santos
2025-05-15 21:13 ` [PATCH v8 07/11] iio: adc: ad7768-1: add multiple scan types to support 16-bits mode Jonathan Santos
2025-05-16 9:24 ` Andy Shevchenko
2025-05-15 21:13 ` [PATCH v8 08/11] iio: adc: ad7768-1: add support for Synchronization over SPI Jonathan Santos
2025-05-15 22:46 ` David Lechner [this message]
2025-05-16 9:29 ` Andy Shevchenko
2025-05-18 16:58 ` Jonathan Cameron
2025-05-24 0:00 ` Jonathan Santos
2025-05-25 9:41 ` Jonathan Cameron
2025-05-15 21:14 ` [PATCH v8 09/11] iio: adc: ad7768-1: replace manual attribute declaration Jonathan Santos
2025-05-15 21:14 ` [PATCH v8 10/11] iio: adc: ad7768-1: add filter type and oversampling ratio attributes Jonathan Santos
2025-05-16 9:34 ` Andy Shevchenko
2025-05-18 17:03 ` Jonathan Cameron
2025-05-19 17:13 ` Jonathan Santos
2025-05-19 20:15 ` David Lechner
2025-05-19 22:31 ` Jonathan Santos
2025-05-25 9:44 ` Jonathan Cameron
2025-05-15 21:14 ` [PATCH v8 11/11] iio: adc: ad7768-1: add low pass -3dB cutoff attribute Jonathan Santos
2025-05-16 9:38 ` Andy Shevchenko
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