From patchwork Fri Feb 10 10:12:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alain Volmat X-Patchwork-Id: 13135646 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 52B5AC05027 for ; Fri, 10 Feb 2023 10:14:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=1FZF/iMeZ52+dhGLquV308ABEzsEpvhiw1iUGEx2A5U=; b=hu9pvoS4QYnPfq 9WRcJZab+ch8NXEhe1hpOJw9JI+W5xQX/i+KY4XXjPu3mimCoFCMRntaWkiNV9N4JKsP4V6hw2G5/ MIxFUyEnaIGPIylfwXQGpFARHdogW/G6NRwBWhZD4BC5U6mD8x/mGJg7AR2CS5hXz5p1exv6u/a6l vfuh7TleyYNjUhakwDMgOmWCFndZJ886KaCnGstANwKjZJFiofSz12bKCaWimVdcrdc3AMx7DY1t0 aUBDdZWINh4xIJjVitIF4C5+ZRzNGEye9pQV7TbLoHgPuaY98ilmGV9gPiR0salF6G1xJiyj0OiJC 4qye/RnNtfhbZwc+zDbA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pQQP4-005ERn-5U; Fri, 10 Feb 2023 10:13:14 +0000 Received: from mr85p00im-zteg06011501.me.com ([17.58.23.182]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pQQP0-005EPs-Ow for linux-arm-kernel@lists.infradead.org; Fri, 10 Feb 2023 10:13:12 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=me.com; s=1a1hai; t=1676023984; bh=KFtwu33ECMShGMR+8RbNg0g2/vZHZBsmYaAmWtSkATg=; h=From:To:Subject:Date:Message-Id:MIME-Version; b=UaBFz76cdjjYzbcOrW8W49cxaGIe0fSmkAAyfh8p/y+X+P3NA8r1RlLcDiXsf2o44 5Q872UKMzBwr3LEFbo3V1kb3tH6z19BMrFCd6+lmYp93GqdTsncn+wIliQ6pg1yTY+ Qq0CxRUq8uXekZk3Vz98QFjPBsjW4/0buQ9iClx7CNIVJmy3PDYUgrT8H8XNML9LuG g5sG4EEoANSWnd5/Dc6ZQyc1d1ImdVoQs7xKNBVILIxvKnwrmV3ZSFfhtGXvKSTfDc vIMMT8dyIpda2mpWLRPkOY+xO6xYUd9aARj5yLYjreoTBfurcBk/0F9kRgl0dklC2W EmbRRqXq+qUoA== Received: from localhost (mr38p00im-dlb-asmtp-mailmevip.me.com [17.57.152.18]) by mr85p00im-zteg06011501.me.com (Postfix) with ESMTPSA id 3F1B4480B4B; Fri, 10 Feb 2023 10:13:04 +0000 (UTC) From: Alain Volmat To: Rob Herring , Krzysztof Kozlowski , Patrice Chotard Cc: Alain Volmat , linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH] dt-bindings: i2c: conversion of i2c-st into DT schema YAML Date: Fri, 10 Feb 2023 11:12:16 +0100 Message-Id: <20230210101218.14529-1-avolmat@me.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230210_021310_875549_7FEA2AAE X-CRM114-Status: GOOD ( 16.44 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org File st,i2c.yaml replaces i2c-st.txt for the i2c-st driver. Signed-off-by: Alain Volmat --- .../devicetree/bindings/i2c/i2c-st.txt | 41 ----------- .../devicetree/bindings/i2c/st,sti-i2c.yaml | 72 +++++++++++++++++++ MAINTAINERS | 2 +- 3 files changed, 73 insertions(+), 42 deletions(-) delete mode 100644 Documentation/devicetree/bindings/i2c/i2c-st.txt create mode 100644 Documentation/devicetree/bindings/i2c/st,sti-i2c.yaml diff --git a/Documentation/devicetree/bindings/i2c/i2c-st.txt b/Documentation/devicetree/bindings/i2c/i2c-st.txt deleted file mode 100644 index 4c26fda3844a..000000000000 --- a/Documentation/devicetree/bindings/i2c/i2c-st.txt +++ /dev/null @@ -1,41 +0,0 @@ -ST SSC binding, for I2C mode operation - -Required properties : -- compatible : Must be "st,comms-ssc-i2c" or "st,comms-ssc4-i2c" -- reg : Offset and length of the register set for the device -- interrupts : the interrupt specifier -- clock-names: Must contain "ssc". -- clocks: Must contain an entry for each name in clock-names. See the common - clock bindings. -- A pinctrl state named "default" must be defined to set pins in mode of - operation for I2C transfer. - -Optional properties : -- clock-frequency : Desired I2C bus clock frequency in Hz. If not specified, - the default 100 kHz frequency will be used. As only Normal and Fast modes - are supported, possible values are 100000 and 400000. -- st,i2c-min-scl-pulse-width-us : The minimum valid SCL pulse width that is - allowed through the deglitch circuit. In units of us. -- st,i2c-min-sda-pulse-width-us : The minimum valid SDA pulse width that is - allowed through the deglitch circuit. In units of us. -- A pinctrl state named "idle" could be defined to set pins in idle state - when I2C instance is not performing a transfer. -- A pinctrl state named "sleep" could be defined to set pins in sleep state - when driver enters in suspend. - - - -Example : - -i2c0: i2c@fed40000 { - compatible = "st,comms-ssc4-i2c"; - reg = <0xfed40000 0x110>; - interrupts = ; - clocks = <&clk_s_a0_ls CLK_ICN_REG>; - clock-names = "ssc"; - clock-frequency = <400000>; - pinctrl-names = "default"; - pinctrl-0 = <&pinctrl_i2c0_default>; - st,i2c-min-scl-pulse-width-us = <0>; - st,i2c-min-sda-pulse-width-us = <5>; -}; diff --git a/Documentation/devicetree/bindings/i2c/st,sti-i2c.yaml b/Documentation/devicetree/bindings/i2c/st,sti-i2c.yaml new file mode 100644 index 000000000000..dd6ff18b9ed7 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/st,sti-i2c.yaml @@ -0,0 +1,72 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/i2c/st,sti-i2c.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: I2C controller embedded in STMicroelectronics STi platform + +maintainers: + - Patrice Chotard + +allOf: + - $ref: /schemas/i2c/i2c-controller.yaml# + +properties: + compatible: + enum: + - st,comms-ssc-i2c + - st,comms-ssc4-i2c + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + maxItems: 1 + + clock-frequency: + enum: [ 100000, 400000 ] + + st,i2c-min-scl-pulse-width-us: + description: + The minimum valid SCL pulse width that is allowed through the + deglitch circuit. In units of us. + maxItems: 1 + + st,i2c-min-sda-pulse-width-us: + description: + The minimum valid SDA pulse width that is allowed through the + deglitch circuit. In units of us. + maxItems: 1 + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + +unevaluatedProperties: false + +examples: + - | + #include + #include + i2c@fed40000 { + compatible = "st,comms-ssc4-i2c"; + reg = <0xfed40000 0x110>; + interrupts = ; + clocks = <&clk_s_a0_ls CLK_ICN_REG>; + clock-names = "ssc"; + clock-frequency = <400000>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2c0_default>; + st,i2c-min-scl-pulse-width-us = <0>; + st,i2c-min-sda-pulse-width-us = <5>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 06d5be2c713c..2e32eb8d44f5 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2925,7 +2925,7 @@ M: Patrice Chotard L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) S: Maintained W: http://www.stlinux.com -F: Documentation/devicetree/bindings/i2c/i2c-st.txt +F: Documentation/devicetree/bindings/i2c/st,sti-i2c.yaml F: arch/arm/boot/dts/sti* F: arch/arm/mach-sti/ F: drivers/ata/ahci_st.c