From: Mark Brown <broonie@kernel.org>
To: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
Cc: Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Conor Dooley <conor+dt@kernel.org>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Magnus Damm <magnus.damm@gmail.com>,
linux-spi@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
Chris Paterson <Chris.Paterson2@renesas.com>,
Biju Das <biju.das@bp.renesas.com>,
Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Subject: Re: [PATCH 1/2] spi: renesas,rzv2m-csi: Add SPI Slave related properties
Date: Wed, 27 Sep 2023 10:56:42 +0200 [thread overview]
Message-ID: <ZRPuSidGd5zO6pXf@finisterre.sirena.org.uk> (raw)
In-Reply-To: <20230926210818.197356-2-fabrizio.castro.jz@renesas.com>
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On Tue, Sep 26, 2023 at 10:08:17PM +0100, Fabrizio Castro wrote:
> The CSI IP found inside the Renesas RZ/V2M SoC can also work
> in SPI slave mode.
> When working in slave mode, the IP can make use of the SS
> (Slave Select) pin, with "low" as default active level.
> The active level of SS can be changed to "high" upon configuration.
> This patch adds two new properties, one to make use of the
> SS pin when in slave mode, and one to make the SS pin active high.
Please avoid the use of outdated terminology like this, prefer "device
mode" or similar.
> + renesas,csi-ss:
> + type: boolean
> + description:
> + Use CSI Slave Selection (SS) pin to enable transmission and reception when
> + in slave mode.
When would this ever not be true when in device mode?
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next prev parent reply other threads:[~2023-09-27 8:56 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-26 21:08 [PATCH 0/2] Add RZ/V2M CSI slave support Fabrizio Castro
2023-09-26 21:08 ` [PATCH 1/2] spi: renesas,rzv2m-csi: Add SPI Slave related properties Fabrizio Castro
2023-09-27 7:59 ` Geert Uytterhoeven
2023-09-27 9:00 ` Mark Brown
2023-09-27 9:10 ` Geert Uytterhoeven
2023-09-27 9:21 ` Mark Brown
2023-09-27 9:44 ` Geert Uytterhoeven
2023-09-27 10:05 ` Mark Brown
2023-09-27 10:18 ` Fabrizio Castro
2023-09-27 10:22 ` Mark Brown
2023-09-27 9:43 ` Fabrizio Castro
2023-09-27 9:36 ` Fabrizio Castro
2023-09-27 8:56 ` Mark Brown [this message]
2023-09-27 9:40 ` Fabrizio Castro
2023-09-26 21:08 ` [PATCH 2/2] spi: rzv2m-csi: Add Slave mode support Fabrizio Castro
2023-09-27 9:02 ` Mark Brown
2023-09-27 9:12 ` Geert Uytterhoeven
2023-09-27 9:15 ` Mark Brown
2023-09-27 9:51 ` Geert Uytterhoeven
2023-09-27 10:05 ` Fabrizio Castro
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