From patchwork Fri Nov 18 01:11:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hal Feng X-Patchwork-Id: 626476 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 19912C4167D for ; Fri, 18 Nov 2022 01:46:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241008AbiKRBq1 convert rfc822-to-8bit (ORCPT ); Thu, 17 Nov 2022 20:46:27 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56316 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240801AbiKRBqY (ORCPT ); Thu, 17 Nov 2022 20:46:24 -0500 Received: from ex01.ufhost.com (ex01.ufhost.com [61.152.239.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5B9C0742D5; Thu, 17 Nov 2022 17:46:22 -0800 (PST) Received: from EXMBX165.cuchost.com (unknown [175.102.18.54]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "EXMBX165", Issuer "EXMBX165" (not verified)) by ex01.ufhost.com (Postfix) with ESMTP id 84EFA24E1F5; Fri, 18 Nov 2022 09:11:12 +0800 (CST) Received: from EXMBX072.cuchost.com (172.16.6.82) by EXMBX165.cuchost.com (172.16.6.75) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Fri, 18 Nov 2022 09:11:12 +0800 Received: from ubuntu.localdomain (183.27.96.116) by EXMBX072.cuchost.com (172.16.6.82) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Fri, 18 Nov 2022 09:11:11 +0800 From: Hal Feng To: , , CC: Conor Dooley , Palmer Dabbelt , "Rob Herring" , Krzysztof Kozlowski , Linus Walleij , Emil Renner Berthing , Hal Feng , Jianlong Huang , Subject: [PATCH v2 2/5] dt-bindings: pinctrl: Add StarFive JH7110 sys pinctrl Date: Fri, 18 Nov 2022 09:11:05 +0800 Message-ID: <20221118011108.70715-3-hal.feng@starfivetech.com> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221118011108.70715-1-hal.feng@starfivetech.com> References: <20221118011108.70715-1-hal.feng@starfivetech.com> MIME-Version: 1.0 X-Originating-IP: [183.27.96.116] X-ClientProxiedBy: EXCAS064.cuchost.com (172.16.6.24) To EXMBX072.cuchost.com (172.16.6.82) X-YovoleRuleAgent: yovoleflag Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org From: Jianlong Huang Add pinctrl bindings for StarFive JH7110 SoC sys pinctrl controller. Signed-off-by: Jianlong Huang Signed-off-by: Hal Feng --- .../pinctrl/starfive,jh7110-sys-pinctrl.yaml | 165 ++++++++++++++++++ 1 file changed, 165 insertions(+) create mode 100644 Documentation/devicetree/bindings/pinctrl/starfive,jh7110-sys-pinctrl.yaml diff --git a/Documentation/devicetree/bindings/pinctrl/starfive,jh7110-sys-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/starfive,jh7110-sys-pinctrl.yaml new file mode 100644 index 000000000000..79623f884a9c --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/starfive,jh7110-sys-pinctrl.yaml @@ -0,0 +1,165 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pinctrl/starfive,jh7110-sys-pinctrl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: StarFive JH7110 Sys Pin Controller + +description: | + Bindings for the JH7110 RISC-V SoC from StarFive Technology Ltd. + + Out of the SoC's many pins only the ones named PAD_GPIO0 to PAD_GPIO63 + can be multiplexed and have configurable bias, drive strength, + schmitt trigger etc. + Some peripherals have their I/O go through the 64 "GPIOs". This also + includes a number of other UARTs, I2Cs, SPIs, PWMs etc. + All these peripherals are connected to all 64 GPIOs such that + any GPIO can be set up to be controlled by any of the peripherals. + +maintainers: + - Jianlong Huang + +properties: + compatible: + const: starfive,jh7110-sys-pinctrl + + reg: + maxItems: 1 + + reg-names: + items: + - const: control + + clocks: + maxItems: 1 + + resets: + maxItems: 1 + + gpio-controller: true + + "#gpio-cells": + const: 2 + + interrupts: + maxItems: 1 + description: The GPIO parent interrupt. + + interrupt-controller: true + + "#interrupt-cells": + const: 2 + +required: + - compatible + - reg + - reg-names + - clocks + - gpio-controller + - "#gpio-cells" + - interrupts + - interrupt-controller + - "#interrupt-cells" + +patternProperties: + '-[0-9]+$': + type: object + patternProperties: + '-pins$': + type: object + description: | + A pinctrl node should contain at least one subnode representing the + pinctrl groups available on the machine. Each subnode will list the + pins it needs, and how they should be configured, with regard to + muxer configuration, system signal configuration, pin groups for + vin/vout module, pin voltage, mux functions for output, mux functions + for output enable, mux functions for input. + + properties: + pinmux: + description: | + The list of GPIOs and their mux settings that properties in the + node apply to. This should be set using the GPIOMUX macro. + $ref: "/schemas/pinctrl/pinmux-node.yaml#/properties/pinmux" + + bias-disable: true + + bias-pull-up: + type: boolean + + bias-pull-down: + type: boolean + + drive-strength: + enum: [ 2, 4, 8, 12 ] + + input-enable: true + + input-disable: true + + input-schmitt-enable: true + + input-schmitt-disable: true + + slew-rate: + maximum: 1 + + additionalProperties: false + + additionalProperties: false + +additionalProperties: false + +examples: + - | + #include + #include + #include + + soc { + #address-cells = <2>; + #size-cells = <2>; + + gpio: gpio@13040000 { + compatible = "starfive,jh7110-sys-pinctrl"; + reg = <0x0 0x13040000 0x0 0x10000>; + reg-names = "control"; + clocks = <&syscrg_clk JH7110_SYSCLK_IOMUX>; + resets = <&syscrg_rst JH7110_SYSRST_IOMUX>; + interrupts = <86>; + interrupt-controller; + #interrupt-cells = <2>; + #gpio-cells = <2>; + gpio-controller; + status = "okay"; + + uart0_pins: uart0-0 { + tx-pins { + pinmux = ; + bias-disable; + drive-strength = <12>; + input-disable; + input-schmitt-disable; + slew-rate = <0>; + }; + + rx-pins { + pinmux = ; + bias-pull-up; + drive-strength = <2>; + input-enable; + input-schmitt-enable; + slew-rate = <0>; + }; + }; + }; + + uart0 { + pinctrl-names = "default"; + pinctrl-0 = <&uart0_pins>; + status = "okay"; + }; + }; + +...