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Wed, 15 Oct 2025 13:15:36 -0700 (PDT) Date: Wed, 15 Oct 2025 17:16:40 -0300 From: Marcelo Schmitt To: David Lechner Cc: Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Marcelo Schmitt , Michael Hennerich , Nuno =?iso-8859-1?Q?S=E1?= , Jonathan Cameron , Andy Shevchenko , Sean Anderson , 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 Message-ID: References: <20251014-spi-add-multi-bus-support-v1-0-2098c12d6f5f@baylibre.com> <20251014-spi-add-multi-bus-support-v1-2-2098c12d6f5f@baylibre.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline 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 > --- LGTM Acked-by: Marcelo Schmitt