From patchwork Mon Sep 16 06:42:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ze Huang <18771902331@163.com> X-Patchwork-Id: 13805048 X-Patchwork-Delegate: mail@conchuod.ie 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 5A16FC3ABB2 for ; Mon, 16 Sep 2024 06:46:07 +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:References:In-Reply-To: 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: List-Owner; bh=n9QyTm1vUdONKhlrIvkA4PTeRAJSS+/RrQoy0TyUUhc=; b=iVYUPLA/TCkfOM 6gZvAMEupm8E0ZREOoM/ZbLbIAvaca9laBAYSFXxZVcJiZp2wGKmXSoLS7lGljartn2pfcLKFTWn/ 88E/vv9gFl5dd/CMp+VUxrJCBXdXU35kT6HJ89Alcl1hyPo/C1fXoMKBCs+t/Bg4aY7O8L9jlbptL kWMbpkWCw/gbfvEapM01hTSfyTHPULQy3qBZZaP1c0ndQVyDCh1X/xFE9keLhlzLlWGfgdCDgVTBZ caaYwBDG6RKsgmn5seWRkcIDSj7ChmZeK9BuYewkhOrekgV88ITQ8m6WA3aFEAp4SsaL2tEJCU/Fj lk/6wtaUsnrOAqL5QxhA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1sq5Uq-00000003DLy-2Tb5; Mon, 16 Sep 2024 06:46:04 +0000 Received: from m16.mail.163.com ([117.135.210.4]) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1sq5Tv-00000003D9F-2A8K for linux-riscv@lists.infradead.org; Mon, 16 Sep 2024 06:45:10 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:Subject:Date:Message-ID:MIME-Version; bh=H5SO/ a1hfbyVpeTzy2AAy5aKvwSqfgsGs2lOMb5bsec=; b=ELcD2D9iTL4cSN5SxjBh6 BXgHtcjXd3q1Snt6RNk4YaZOuu2naSd+v2aGVrwlnyZTvk4kirg61qdU9m2/J6bd WHwF+zo+k9Z/u6AEiRrnVJRe/mY9XlCJVCu5W9h85pwJhnwxN7fme/EkWBGbZUcX 4hclGhEXcFJ5oq7C1CoeVY= Received: from jean.localdomain (unknown [27.18.168.209]) by gzga-smtp-mta-g3-3 (Coremail) with SMTP id _____wDXX36b0+dmVfTnDg--.31141S2; Mon, 16 Sep 2024 14:43:39 +0800 (CST) From: Ze Huang <18771902331@163.com> To: Linus Walleij , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Paul Walmsley , Palmer Dabbelt , Albert Ou , Ze Huang <18771902331@163.com>, Yangyu Chen Cc: linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org Subject: [RESEND PATCH 1/3] dt-bindings: pinctrl: Add support for canaan,k230 SoC Date: Mon, 16 Sep 2024 14:42:23 +0800 Message-ID: <20240916064225.316863-1-18771902331@163.com> X-Mailer: git-send-email 2.46.1 In-Reply-To: <20240916063021.311721-1-18771902331@163.com> References: <20240916063021.311721-1-18771902331@163.com> MIME-Version: 1.0 X-CM-TRANSID: _____wDXX36b0+dmVfTnDg--.31141S2 X-Coremail-Antispam: 1Uf129KBjvJXoWxuF17Cr1xuw1rZr4rAryfXrb_yoWrJFyxpF ZxKa98KF1rWF47K3yfta18uF13Xa1kArsagw1Utry7tw45WF18Kr1akr4IvF4DWFn7J3Wa qFWIgry7KF47Ar7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x0piL0ePUUUUU= X-Originating-IP: [27.18.168.209] X-CM-SenderInfo: zpryllqrzqjjitr6il2tof0z/1tbiJwBcomXAn1YeJAAAsP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240915_234507_970168_27B4FD5E X-CRM114-Status: GOOD ( 14.78 ) X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Add device tree binding details for Canaan K230 pinctrl device. Signed-off-by: Ze Huang <18771902331@163.com> --- .../bindings/pinctrl/canaan,k230-pinctrl.yaml | 128 ++++++++++++++++++ 1 file changed, 128 insertions(+) create mode 100644 Documentation/devicetree/bindings/pinctrl/canaan,k230-pinctrl.yaml diff --git a/Documentation/devicetree/bindings/pinctrl/canaan,k230-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/canaan,k230-pinctrl.yaml new file mode 100644 index 000000000000..979c5bd71e3d --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/canaan,k230-pinctrl.yaml @@ -0,0 +1,128 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pinctrl/canaan,k230-pinctrl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Canaan Kendryte K230 Pin Controller + +maintainers: + - Ze Huang <18771902331@163.com> + +description: + The Canaan Kendryte K230 platform includes 64 IO pins, each capable of + multiplexing up to 5 different functions. Pin function configuration is + performed on a per-pin basis. + +properties: + compatible: + const: canaan,k230-pinctrl + + reg: + maxItems: 1 + +patternProperties: + '-pins$': + type: object + additionalProperties: false + description: + A pinctrl node should contain at least one subnode representing the + pinctrl groups available on the machine. + + patternProperties: + '-cfg$': + type: object + $ref: /schemas/pinctrl/pincfg-node.yaml + additionalProperties: false + description: + Each subnode will list the pins it needs, and how they should + be configured, with regard to muxer configuration, bias, input + enable/disable, input schmitt trigger, slew-rate enable/disable, + slew-rate, drive strength. + + properties: + pinmux: + $ref: /schemas/types.yaml#/definitions/uint32-array + description: + The list of GPIOs and their mux settings that properties in + the node apply to. This should be set with the macro + 'K230_PINMUX(pin, mode)' + + bias-disable: true + + bias-pull-up: true + + bias-pull-down: true + + drive-strength: + minimum: 0 + maximum: 15 + + input-enable: true + + output-enable: true + + input-schmitt-enable: true + + slew-rate: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + slew rate control enable + 0: disable + 1: enable + + enum: [0, 1] + + power-source: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + Specifies the power source voltage for the IO bank that the + pin belongs to. Each bank of IO pins operate at a specific, + fixed voltage levels. Incorrect voltage configuration can + damage the chip. The defined constants represent the + possible voltage configurations: + + - K230_MSC_3V3 (value 0): 3.3V power supply + - K230_MSC_1V8 (value 1): 1.8V power supply + + The following banks have the corresponding voltage + configurations: + + - bank IO0 to IO1: Fixed at 1.8V + - bank IO2 to IO13: Fixed at 1.8V + - bank IO14 to IO25: Fixed at 1.8V + - bank IO26 to IO37: Fixed at 1.8V + - bank IO38 to IO49: Fixed at 1.8V + - bank IO50 to IO61: Fixed at 3.3V + - bank IO62 to IO63: Fixed at 1.8V + + enum: [0, 1] + + required: + - pinmux + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + pinctrl: pinctrl@91105000 { + compatible = "canaan,k230-pinctrl"; + reg = <0x91105000 0x100>; + + uart2_pins: uart2-pins { + uart2-pins-cfg { + pinmux = <0x503>, /* uart2 txd */ + <0x603>; /* uart2 rxd */ + slew-rate = <0>; + drive-strength = <4>; + power-source = <1>; + input-enable; + output-enable; + bias-disable; + }; + }; + };