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Sun, 28 Apr 2024 23:27:47 -0700 (PDT) Received: from [192.168.1.20] ([178.197.223.16]) by smtp.gmail.com with ESMTPSA id a13-20020aa7d74d000000b005726ee95a38sm2183591eds.88.2024.04.28.23.27.45 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 28 Apr 2024 23:27:46 -0700 (PDT) Message-ID: <1613d7e3-a5cc-4b8e-a905-3699779476fe@linaro.org> Date: Mon, 29 Apr 2024 08:27:44 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/7] dt-bindings: i2c: mux: mule: add dt-bindings for mule i2c multiplexer To: Farouk Bouabid , Wolfram Sang , Peter Rosin , Andi Shyti , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Quentin Schulz , Heiko Stuebner Cc: linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org References: <20240426-dev-mule-i2c-mux-v1-0-045a482f6ffb@theobroma-systems.com> <20240426-dev-mule-i2c-mux-v1-2-045a482f6ffb@theobroma-systems.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzysztof.kozlowski@linaro.org; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Except that this was not fully tested few comments. A nit, subject: drop second/last, redundant "dt-bindings for". The "dt-bindings" prefix is already stating that these are bindings. See also: https://elixir.bootlin.com/linux/v6.7-rc8/source/Documentation/devicetree/bindings/submitting-patches.rst#L18 On 26/04/2024 18:49, Farouk Bouabid wrote: > This patch adds support for the Mule I2C multiplexer. Please do not use "This commit/patch/change", but imperative mood. See longer explanation here: https://elixir.bootlin.com/linux/v5.17.1/source/Documentation/process/submitting-patches.rst#L95 > > Mule is an mcu that emulates a set of i2c devices which are reacheable > through an i2c-mux. > > The emulated devices share a single i2c address with the mux itself where > the requested register is what determines which logic is executed (mux or > device). > > Signed-off-by: Farouk Bouabid > --- > .../devicetree/bindings/i2c/i2c-mux-mule.yaml | 80 ++++++++++++++++++++++ > 1 file changed, 80 insertions(+) > > diff --git a/Documentation/devicetree/bindings/i2c/i2c-mux-mule.yaml b/Documentation/devicetree/bindings/i2c/i2c-mux-mule.yaml > new file mode 100644 > index 000000000000..458e4661cbc8 > --- /dev/null > +++ b/Documentation/devicetree/bindings/i2c/i2c-mux-mule.yaml Use compatible as filename. > @@ -0,0 +1,80 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/i2c/i2c-mux-mule.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Mule I2C multiplexer > + > +maintainers: > + - Farouk Bouabid > + - Quentin Schulz > + > +description: | > + Mule is an mcu that emulates a set of i2c devices which are reacheable typo, reachable > + through an i2c-mux. > + > + The emulated devices share a single i2c address with the mux itself where > + the requested register is what determines which logic is executed (mux or > + device) > + > + +--------------------------------------------------+ > + | Mule | > + | +---------------+ | > + ------+->|Config register|----+ | > + | | +---------------+ | | > + | | V_ | > + | | | \ +--------+ | > + | | | \-------->| dev #0 | | > + | | | | +--------+ | > + | | | M |-------->| dev #1 | | > + | +--------------------->| U | +--------+ | > + | | X |-------->| dev #2 | | > + | | | +--------+ | > + | | /-------->| dev #3 | | > + | |__/ +--------+ | > + +--------------------------------------------------+ > + > + > +allOf: > + - $ref: /schemas/i2c/i2c-mux.yaml# > + > +properties: > + compatible: > + const: tsd,mule-i2c-mux > + > + reg: > + maxItems: 1 > + Best regards, Krzysztof _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel