From patchwork Wed Jul 21 19:15:55 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Prabhakar X-Patchwork-Id: 12391955 X-Patchwork-Delegate: geert@linux-m68k.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1C1EAC636C9 for ; Wed, 21 Jul 2021 19:16:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 01BDB6120D for ; Wed, 21 Jul 2021 19:16:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239362AbhGUSfh (ORCPT ); Wed, 21 Jul 2021 14:35:37 -0400 Received: from relmlor1.renesas.com ([210.160.252.171]:32592 "EHLO relmlie5.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S231633AbhGUSfh (ORCPT ); Wed, 21 Jul 2021 14:35:37 -0400 X-IronPort-AV: E=Sophos;i="5.84,258,1620658800"; d="scan'208";a="88398351" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie5.idc.renesas.com with ESMTP; 22 Jul 2021 04:16:12 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id D9634400C747; Thu, 22 Jul 2021 04:16:09 +0900 (JST) From: Lad Prabhakar To: Geert Uytterhoeven , Rob Herring , Linus Walleij , Magnus Damm , linux-gpio@vger.kernel.org, devicetree@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Prabhakar , Biju Das , Lad Prabhakar Subject: [PATCH v3 1/4] dt-bindings: pinctrl: renesas,rzg2l-pinctrl: Add DT bindings for RZ/G2L pinctrl Date: Wed, 21 Jul 2021 20:15:55 +0100 Message-Id: <20210721191558.22484-2-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210721191558.22484-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20210721191558.22484-1-prabhakar.mahadev-lad.rj@bp.renesas.com> Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Add device tree binding documentation and header file for Renesas RZ/G2L pinctrl. Signed-off-by: Lad Prabhakar Reviewed-by: Biju Das Reviewed-by: Geert Uytterhoeven Reviewed-by: Rob Herring --- .../pinctrl/renesas,rzg2l-pinctrl.yaml | 155 ++++++++++++++++++ include/dt-bindings/pinctrl/rzg2l-pinctrl.h | 23 +++ 2 files changed, 178 insertions(+) create mode 100644 Documentation/devicetree/bindings/pinctrl/renesas,rzg2l-pinctrl.yaml create mode 100644 include/dt-bindings/pinctrl/rzg2l-pinctrl.h diff --git a/Documentation/devicetree/bindings/pinctrl/renesas,rzg2l-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/renesas,rzg2l-pinctrl.yaml new file mode 100644 index 000000000000..ef68dabcf4dc --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/renesas,rzg2l-pinctrl.yaml @@ -0,0 +1,155 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pinctrl/renesas,rzg2l-pinctrl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Renesas RZ/G2L combined Pin and GPIO controller + +maintainers: + - Geert Uytterhoeven + - Lad Prabhakar + +description: + The Renesas SoCs of the RZ/G2L series feature a combined Pin and GPIO + controller. + Pin multiplexing and GPIO configuration is performed on a per-pin basis. + Each port features up to 8 pins, each of them configurable for GPIO function + (port mode) or in alternate function mode. + Up to 8 different alternate function modes exist for each single pin. + +properties: + compatible: + enum: + - renesas,r9a07g044-pinctrl # RZ/G2{L,LC} + + reg: + maxItems: 1 + + gpio-controller: true + + '#gpio-cells': + const: 2 + description: + The first cell contains the global GPIO port index, constructed using the + RZG2L_GPIO() helper macro in and the + second cell represents consumer flag as mentioned in ../gpio/gpio.txt + E.g. "RZG2L_GPIO(39, 1)" for P39_1. + + gpio-ranges: + maxItems: 1 + + clocks: + maxItems: 1 + + power-domains: + maxItems: 1 + + resets: + items: + - description: GPIO_RSTN signal + - description: GPIO_PORT_RESETN signal + - description: GPIO_SPARE_RESETN signal + +additionalProperties: + anyOf: + - type: object + allOf: + - $ref: pincfg-node.yaml# + - $ref: pinmux-node.yaml# + + description: + Pin controller client devices use pin configuration subnodes (children + and grandchildren) for desired pin configuration. + Client device subnodes use below standard properties. + + properties: + phandle: true + pinmux: + description: + Values are constructed from GPIO port number, pin number, and + alternate function configuration number using the RZG2L_PORT_PINMUX() + helper macro in . + pins: true + drive-strength: + enum: [ 2, 4, 8, 12 ] + power-source: + enum: [ 1800, 2500, 3300 ] + slew-rate: true + gpio-hog: true + gpios: true + input-enable: true + output-high: true + output-low: true + line-name: true + + - type: object + properties: + phandle: true + + additionalProperties: + $ref: "#/additionalProperties/anyOf/0" + +required: + - compatible + - reg + - gpio-controller + - '#gpio-cells' + - gpio-ranges + - clocks + - power-domains + - resets + +examples: + - | + #include + #include + + pinctrl: pinctrl@11030000 { + compatible = "renesas,r9a07g044-pinctrl"; + reg = <0x11030000 0x10000>; + + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&pinctrl 0 0 392>; + clocks = <&cpg CPG_MOD R9A07G044_GPIO_HCLK>; + resets = <&cpg R9A07G044_GPIO_RSTN>, + <&cpg R9A07G044_GPIO_PORT_RESETN>, + <&cpg R9A07G044_GPIO_SPARE_RESETN>; + power-domains = <&cpg>; + + scif0_pins: serial0 { + pinmux = , /* Tx */ + ; /* Rx */ + }; + + i2c1_pins: i2c1 { + pins = "RIIC1_SDA", "RIIC1_SCL"; + input-enable; + }; + + sd1-pwr-en-hog { + gpio-hog; + gpios = ; + output-high; + line-name = "sd1_pwr_en"; + }; + + sdhi1_pins: sd1 { + sd1_mux { + pinmux = , /* CD */ + ; /* WP */ + power-source = <3300>; + }; + + sd1_data { + pins = "SD1_DATA0", "SD1_DATA1", "SD1_DATA2", "SD1_DATA3"; + power-source = <3300>; + }; + + sd1_ctrl { + pins = "SD1_CLK", "SD1_CMD"; + power-source = <3300>; + }; + }; + }; diff --git a/include/dt-bindings/pinctrl/rzg2l-pinctrl.h b/include/dt-bindings/pinctrl/rzg2l-pinctrl.h new file mode 100644 index 000000000000..b48f8c7a5556 --- /dev/null +++ b/include/dt-bindings/pinctrl/rzg2l-pinctrl.h @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */ +/* + * This header provides constants for Renesas RZ/G2L family pinctrl bindings. + * + * Copyright (C) 2021 Renesas Electronics Corp. + * + */ + +#ifndef __DT_BINDINGS_RZG2L_PINCTRL_H +#define __DT_BINDINGS_RZG2L_PINCTRL_H + +#define RZG2L_PINS_PER_PORT 8 + +/* + * Create the pin index from its bank and position numbers and store in + * the upper 16 bits the alternate function identifier + */ +#define RZG2L_PORT_PINMUX(b, p, f) ((b) * RZG2L_PINS_PER_PORT + (p) | ((f) << 16)) + +/* Convert a port and pin label to its global pin index */ + #define RZG2L_GPIO(port, pin) ((port) * RZG2L_PINS_PER_PORT + (pin)) + +#endif /* __DT_BINDINGS_RZG2L_PINCTRL_H */