From: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
To: David Lechner <dlechner@baylibre.com>
Cc: "Mark Brown" <broonie@kernel.org>,
"Rob Herring" <robh@kernel.org>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"Marcelo Schmitt" <marcelo.schmitt@analog.com>,
"Michael Hennerich" <michael.hennerich@analog.com>,
"Nuno Sá" <nuno.sa@analog.com>,
"Jonathan Cameron" <jic23@kernel.org>,
"Andy Shevchenko" <andy@kernel.org>,
"Sean Anderson" <sean.anderson@linux.dev>,
linux-spi@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org
Subject: Re: [PATCH 2/6] spi: Support multi-bus controllers
Date: Wed, 15 Oct 2025 17:16:40 -0300 [thread overview]
Message-ID: <aPABKMoIbpMhOzxt@debian-BULLSEYE-live-builder-AMD64> (raw)
In-Reply-To: <20251014-spi-add-multi-bus-support-v1-2-2098c12d6f5f@baylibre.com>
On 10/14, David Lechner wrote:
> Add support for SPI controllers with multiple physical SPI data buses.
> (A data bus in this context means lines connected to a serializer, so a
> controller with two data buses would have two serializers in a single
> controller).
>
> This is common in the type of controller that can be used with parallel
> flash memories, but can be used for general purpose SPI as well.
>
> To indicate support, a controller just needs to set ctlr->num_data_bus
> to something greater than 1. Peripherals indicate which bus they are
> connected to via device tree (ACPI support can be added if needed).
>
> Signed-off-by: David Lechner <dlechner@baylibre.com>
> ---
LGTM
Acked-by: Marcelo Schmitt <marcelo.schmitt@analog.com>
next prev parent reply other threads:[~2025-10-15 20:15 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-14 22:02 [PATCH 0/6] spi: add multi-bus support David Lechner
2025-10-14 22:02 ` [PATCH 1/6] dt-bindings: spi: Add spi-buses property David Lechner
2025-10-21 14:21 ` Rob Herring
2025-10-21 14:59 ` David Lechner
2025-10-30 13:51 ` Rob Herring
2025-10-30 22:42 ` David Lechner
2025-11-10 17:04 ` Mark Brown
2025-11-12 16:52 ` David Lechner
2025-10-14 22:02 ` [PATCH 2/6] spi: Support multi-bus controllers David Lechner
2025-10-15 10:06 ` Nuno Sá
2025-10-15 20:16 ` Marcelo Schmitt [this message]
2025-10-14 22:02 ` [PATCH 3/6] spi: add multi_bus_mode field to struct spi_transfer David Lechner
2025-10-15 10:16 ` Nuno Sá
2025-10-15 12:01 ` Mark Brown
2025-10-15 14:43 ` Nuno Sá
2025-10-15 15:18 ` Mark Brown
2025-10-15 16:15 ` David Lechner
2025-10-15 16:43 ` Nuno Sá
2025-10-15 18:38 ` David Lechner
2025-10-16 9:08 ` Nuno Sá
2025-10-16 15:25 ` David Lechner
2025-10-17 12:36 ` Nuno Sá
2025-10-15 20:21 ` Marcelo Schmitt
2025-10-14 22:02 ` [PATCH 4/6] spi: axi-spi-engine: support SPI_MULTI_BUS_MODE_STRIPE David Lechner
2025-10-15 10:30 ` Nuno Sá
2025-10-15 12:03 ` Mark Brown
2025-10-15 16:29 ` David Lechner
2025-10-16 9:11 ` Nuno Sá
2025-10-15 20:53 ` Marcelo Schmitt
2025-10-15 22:01 ` David Lechner
2025-10-14 22:02 ` [PATCH 5/6] dt-bindings: iio: adc: adi,ad7380: add spi-buses property David Lechner
2025-10-14 22:02 ` [PATCH 6/6] iio: adc: ad7380: Add support for multiple SPI buses David Lechner
2025-10-15 10:36 ` Nuno Sá
2025-10-15 18:46 ` David Lechner
2025-10-18 18:10 ` Jonathan Cameron
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