From patchwork Thu Sep 26 15:57:43 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: 830852 Received: from m16.mail.163.com (m16.mail.163.com [117.135.210.5]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 0282A14AD25; Thu, 26 Sep 2024 15:58:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=117.135.210.5 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727366315; cv=none; b=GprCvKDQiVn+no/ZUNIPaZWOhPoDwytyvnI9Iv/Exm37IYG27j7C8flXlAX3BwidmvI4J2hm+6p9/YhCV/B4vew/+kbdTL9woe97v8f/NMDgHs2DVMnhw8wnqOyBEuee7tk61eS/1Emk15Wpt57PR6+7d8ShcCG4JLO5UXGHQYs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727366315; c=relaxed/simple; bh=Nl29eGU+LqeBp/q6oMd/IBwgBjzcLkHRNHOWh5mHn+c=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=UZHatXVOuIRRZc3yHLTrk8GFCH9Wku+B13eQixxSCQl0jEaLIxtO43/8OLTa/N8FFTGMWYqHZt+xeUdlGmsh2t+vRKqvnvHe5RrfwoZAuFHhha4zPtRsPXAzfJOTIJKjLAv1aktSJIFxSjN9DzNAlg21Ra0uN2M32n/Pn7RNTJ8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=PoymsWGC; arc=none smtp.client-ip=117.135.210.5 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="PoymsWGC" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:Date:Subject:MIME-Version:Content-Type: Message-Id; bh=mty+cdJRqv0WA4yEuN8JbkJ3vgLRawx+ZI6WiLYKKXg=; b=P oymsWGC6QzTJn2BpALlcxIyJgWCCKLefjZHffOTQSKUKhZxj0tjLznSqq4jjoC38 YA2nH7/rDodr0spi5rrAmEI1D2jwmAcUGSNfLThiNiGf5mZ7svzt8Rf5WgqSYoUK 6iTQMc9f+JYpUJZf3JJgfbGbakTBbBwXRwWzQcA92w= Received: from [127.0.0.1] (unknown [27.18.107.33]) by gzsmtp3 (Coremail) with SMTP id sigvCgBHA3OFhPVmTIX3AA--.42449S3; Thu, 26 Sep 2024 23:57:58 +0800 (CST) From: Ze Huang <18771902331@163.com> Date: Thu, 26 Sep 2024 23:57:43 +0800 Subject: [PATCH v2 1/3] dt-bindings: pinctrl: Add support for canaan,k230 SoC Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240926-k230-pinctrl-v2-1-a9a36fba4b34@163.com> References: <20240926-k230-pinctrl-v2-0-a9a36fba4b34@163.com> In-Reply-To: <20240926-k230-pinctrl-v2-0-a9a36fba4b34@163.com> To: Linus Walleij , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Paul Walmsley , Palmer Dabbelt , Albert Ou , Conor Dooley Cc: linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Ze Huang <18771902331@163.com> X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1727366277; l=4390; i=18771902331@163.com; s=20240926; h=from:subject:message-id; bh=Nl29eGU+LqeBp/q6oMd/IBwgBjzcLkHRNHOWh5mHn+c=; b=6btBS1Z9E2dC+EVFS5yNRzeMnx7sLUnEln7pk27eRXqfExuUY0NE0ZCPIBfn9sWkvk75HTIyY K0JrtKV/84oBVWfptRAJ75F5mE+i1g3+W7K6b6UI40DfiiHONLfP2oX X-Developer-Key: i=18771902331@163.com; a=ed25519; pk=M4cXLTlQ3syp0aIw4PNbFtajcroq/y7WBxK2F/jsUWI= X-CM-TRANSID: sigvCgBHA3OFhPVmTIX3AA--.42449S3 X-Coremail-Antispam: 1Uf129KBjvJXoWxuF17Cr1rCw4rGw1UGr13XFb_yoW5KrWUpF Z3KFW5Krs5WF47K3yfta18uF13Xa1kAF4Sqw1UKr9rJw45KF18Kr1akr4aqF4DuF1kJw1a qFWIgry7Kr47Aw7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x0pEk9NDUUUUU= X-CM-SenderInfo: zpryllqrzqjjitr6il2tof0z/1tbiJw1momb1fqM32QABsP Add device tree binding details for Canaan K230 pinctrl device. Signed-off-by: Ze Huang <18771902331@163.com> --- .../bindings/pinctrl/canaan,k230-pinctrl.yaml | 127 +++++++++++++++++++++ 1 file changed, 127 insertions(+) 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 0000000000000000000000000000000000000000..0b462eb6dfe169a292bf716503c03d029f1ac7ee --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/canaan,k230-pinctrl.yaml @@ -0,0 +1,127 @@ +# 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 + allOf: + - $ref: /schemas/pinctrl/pincfg-node.yaml + - $ref: /schemas/pinctrl/pinmux-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: + 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: + description: | + slew rate control enable + 0: disable + 1: enable + + enum: [0, 1] + + power-source: + 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@91105000 { + compatible = "canaan,k230-pinctrl"; + reg = <0x91105000 0x100>; + + 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; + }; + }; + };