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 E1C60C433F5 for ; Tue, 7 Dec 2021 21:09:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236963AbhLGVMr (ORCPT ); Tue, 7 Dec 2021 16:12:47 -0500 Received: from mout.gmx.net ([212.227.15.15]:56515 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241683AbhLGVMa (ORCPT ); Tue, 7 Dec 2021 16:12:30 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1638911332; bh=XAzA8gvNpKYxrPkC0Q1zECWGCmnDKj0uKiKMhz6ztHY=; h=X-UI-Sender-Class:From:To:Cc:Subject:Date:In-Reply-To:References; b=bL+cKa60ZM5sm30/i/0jdhGvCYLujzDXWTFZSeEdlAYpjSHcnvHcQOKXJP/z4o+eP 03WE9F6bZJR4wgByFjH+j77YI2Cmz6KrwaUUIhfggGoc3YrF64wA5MWC0LLeqyJ6em W0GOi+75eSYOZU10RM1apgxukgR4DP6ArUxS4fDg= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from longitude ([5.146.194.160]) by mail.gmx.net (mrgmx004 [212.227.17.190]) with ESMTPSA (Nemesis) id 1N3KPg-1mTaOk0OlW-010J7u; Tue, 07 Dec 2021 22:08:52 +0100 From: =?UTF-8?q?Jonathan=20Neusch=C3=A4fer?= To: linux-gpio@vger.kernel.org, devicetree@vger.kernel.org Cc: Linus Walleij , Rob Herring , openbmc@lists.ozlabs.org, Tomer Maimon , Joel Stanley , linux-kernel@vger.kernel.org, =?UTF-8?q?Jonathan=20Neusch=C3=A4fer?= Subject: [PATCH v2 4/8] dt-bindings: pinctrl: Add Nuvoton WPCM450 Date: Tue, 7 Dec 2021 22:08:19 +0100 Message-Id: <20211207210823.1975632-5-j.neuschaefer@gmx.net> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20211207210823.1975632-1-j.neuschaefer@gmx.net> References: <20211207210823.1975632-1-j.neuschaefer@gmx.net> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:g1MLPD4Rdetv/nS3WvDAQiqkzqdHcUec68aeb50CZV3RSLW7tw0 UQbvBLDrf9O8Eo0oyQV68Roguo4L5B6kl2D3B3lmkmGEFTQ/txhnsguPrBmdP8dGfryZFBz O8XyZVgBbGGGqth1qDH2psdTIaK3RIUDscTXk414qvaduqpjIcqmaOf2oSjUiy4pMQ39svw LDF+caezVgq7nWShRawwQ== X-UI-Out-Filterresults: notjunk:1;V03:K0:2syvsrT2Qy0=:Ltlj6+/0LlH3WvLBRPEca4 3Gdn9wu0nn3hceYE3KpZrbJDzNaSjeH/lh0jamDw8/0u1XL+vInB98uZY4XhfnrdRja7Ywdj7 NCbUKTjUktboDLq55SMIaG4eAfNVMvJO5Ga7g07sjHlqyDdWQYYOPQ261Q/zoFgNYOszSY3y6 4TBgobR4v4sYk5QyZlW8D4R9c+Bqm/D5Tq6cF3EZ13yoSkZvsAfcvTmf9hc+8GTITzho58QH8 1330Axs868e0FJysfks/2kcXKRBQLCsXqCY8fCvcgEKnyUFM6eaLIC3U+wN47RZjU32WjQbeO 0V9aYPJ4eyiOGJF2YEg0bybbEZrsmIkqPDXXRVYA2+CYEV3iEaxBqKMF/iXHUDZsfLeDMiqpI qD4CMfoww5+ZwNJ5SIwckUiYSvjErK30IwcIQftT5fL61g1/LREMrrejokC0l8Hk9H13+ciUk ajkYwnGjOOzvHKG2Xe0uDw0xffpyPBEnYMNoYl2kj5+PTaNPRaqCICMRngWexMXnDEldODJ87 y1SZtCXpnFIietHmaCf44RJ4zr+FsvjCLfMngSFrE51ps8mJCeIIZ4wJTPyQnMi77Vtk2kBVS vopc2clT9m1uoCBsftUuaALw8xJFCZ+DPSScKSRaz/yMJU09k7pNQ5yPr/TX4ViKTdLQll7P3 3yP3T0y+1fNTsJie3QrmFZtCi99Aw4FEv5c04auiSvdYupfyBy9IFXGkXA/2i8n3RtV3L0T7P HOiour2LrYgbXKbQFxoGJnMckEHz+3mzevdd4h0gnRNNt3EEvivb9YQjkGXJbIlj89CjmtXbG IpXvGGxeZtoNPvgCamXu6vBDc8dzrPhZfDoACDztNv7Mezaxx6ZV5cgygYKdx4xq69K9AD8Jm EGGKFB657+UxUbYy5dIVSI8JfZsSR/1mzbNWlYr9gBS83pA8hqNnY3vo4qpYQFpMW/QFGA3jf wXQq8kw6wOCiga5nBthLQgYSsI7mlSNgy48tb5gowU4QD3Bmq70jrB92u/cy6exTCIRh0oDVR 1tQxqNwPwN18asc8TFD2foC2I+7YPodJCHLCNd0Cox9iyT3oZIYOo++DtRvP8SpqaxQhQz2Y2 NRs6LQsftKgtTk= Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This binding is heavily based on the one for NPCM7xx, because the hardware is similar. There are some notable differences, however: - The addresses of GPIO banks are not physical addresses but simple indices (0 to 7), because the GPIO registers are not laid out in convenient blocks. - Pinmux settings can explicitly specify that the GPIO mode is used. Certain pins support blink patterns in hardware. This is currently not modelled in the DT binding. Signed-off-by: Jonathan Neusch=C3=A4fer =2D-- v2: - Move GPIO into subnodes - Improve use of quotes - Remove unnecessary minItems/maxItems lines - Remove "phandle: true" - Use separate prefixes for pinmux and pincfg nodes - Add nuvoton,interrupt-map property - Make it possible to set pinmux to GPIO explicitly v1: - https://lore.kernel.org/lkml/20210602120329.2444672-5-j.neuschaefer@gmx.= net/ =2D-- .../pinctrl/nuvoton,wpcm450-pinctrl.yaml | 190 ++++++++++++++++++ 1 file changed, 190 insertions(+) create mode 100644 Documentation/devicetree/bindings/pinctrl/nuvoton,wpcm= 450-pinctrl.yaml diff --git a/Documentation/devicetree/bindings/pinctrl/nuvoton,wpcm450-pin= ctrl.yaml b/Documentation/devicetree/bindings/pinctrl/nuvoton,wpcm450-pinc= trl.yaml new file mode 100644 index 0000000000000..2b783597794d7 =2D-- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/nuvoton,wpcm450-pinctrl.ya= ml @@ -0,0 +1,190 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pinctrl/nuvoton,wpcm450-pinctrl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Nuvoton WPCM450 pin control and GPIO + +maintainers: + - Jonathan Neusch=C3=A4fer + +properties: + compatible: + const: nuvoton,wpcm450-pinctrl + + reg: + maxItems: 1 + +patternProperties: + # There are three kinds of subnodes: + # 1. a GPIO controller node for each GPIO bank + # 2. a pinmux node configures pin muxing for a group of pins (e.g. rmii= 2) + # 3. a pinconf node configures properties of a single pin + + "^gpio@.*$": + if: + type: object + then: + description: + Eight GPIO banks (gpio@0 to gpio@7), that each contain between 14= and 18 + GPIOs. Some GPIOs support interrupts. + + allOf: + - $ref: pinmux-node.yaml# + + properties: + reg: + description: GPIO bank number (0-7) + + gpio-controller: true + + "#gpio-cells": + const: 2 + + interrupt-controller: true + + "#interrupt-cells": + const: 2 + + interrupts: + maxItems: 4 + + nuvoton,interrupt-map: + description: + This property defines which bits in the interrupt registers + correspond to which GPIOs. + $ref: /schemas/types.yaml#/definitions/uint32-array + items: + - description: First interrupt bit + - description: Number of interrupt bits + - description: First GPIO associated with an interrupt + + required: + - reg + - gpio-controller + - '#gpio-cells' + + "^mux_.*$": + if: + type: object + then: + allOf: + - $ref: pinmux-node.yaml# + properties: + groups: + description: + One or more groups of pins to mux to a certain function + items: + enum: [ smb3, smb4, smb5, scs1, scs2, scs3, smb0, smb1, smb2,= bsp, + hsp1, hsp2, r1err, r1md, rmii2, r2err, r2md, kbcc, dv= o, + clko, smi, uinc, gspi, mben, xcs2, xcs1, sdio, sspi, = fi0, + fi1, fi2, fi3, fi4, fi5, fi6, fi7, fi8, fi9, fi10, fi= 11, + fi12, fi13, fi14, fi15, pwm0, pwm1, pwm2, pwm3, pwm4,= pwm5, + pwm6, pwm7, hg0, hg1, hg2, hg3, hg4, hg5, hg6, hg7 ] + function: + description: + The function that a group of pins is muxed to + enum: [ smb3, smb4, smb5, scs1, scs2, scs3, smb0, smb1, smb2, b= sp, + hsp1, hsp2, r1err, r1md, rmii2, r2err, r2md, kbcc, dvo0= , + dvo1, dvo2, dvo3, dvo4, dvo5, dvo6, dvo7, clko, smi, ui= nc, + gspi, mben, xcs2, xcs1, sdio, sspi, fi0, fi1, fi2, fi3,= fi4, + fi5, fi6, fi7, fi8, fi9, fi10, fi11, fi12, fi13, fi14, = fi15, + pwm0, pwm1, pwm2, pwm3, pwm4, pwm5, pwm6, pwm7, hg0, hg= 1, + hg2, hg3, hg4, hg5, hg6, hg7, gpio ] + + dependencies: + groups: [ function ] + function: [ groups ] + + additionalProperties: false + + "^cfg_.*$": + if: + type: object + then: + allOf: + - $ref: pincfg-node.yaml# + properties: + pins: + description: + A list of pins to configure in certain ways, such as enabling + debouncing + items: + enum: [ gpio0, gpio1, gpio2, gpio3, gpio4, gpio5, gpio6, gpio= 7, + gpio8, gpio9, gpio10, gpio11, gpio12, gpio13, gpio14, + gpio15, gpio16, gpio17, gpio18, gpio19, gpio20, gpio2= 1, + gpio22, gpio23, gpio24, gpio25, gpio26, gpio27, gpio2= 8, + gpio29, gpio30, gpio31, gpio32, gpio33, gpio34, gpio3= 5, + gpio36, gpio37, gpio38, gpio39, gpio40, gpio41, gpio4= 2, + gpio43, gpio44, gpio45, gpio46, gpio47, gpio48, gpio4= 9, + gpio50, gpio51, gpio52, gpio53, gpio54, gpio55, gpio5= 6, + gpio57, gpio58, gpio59, gpio60, gpio61, gpio62, gpio6= 3, + gpio64, gpio65, gpio66, gpio67, gpio68, gpio69, gpio7= 0, + gpio71, gpio72, gpio73, gpio74, gpio75, gpio76, gpio7= 7, + gpio78, gpio79, gpio80, gpio81, gpio82, gpio83, gpio8= 4, + gpio85, gpio86, gpio87, gpio88, gpio89, gpio90, gpio9= 1, + gpio92, gpio93, gpio94, gpio95, gpio96, gpio97, gpio9= 8, + gpio99, gpio100, gpio101, gpio102, gpio103, gpio104, + gpio105, gpio106, gpio107, gpio108, gpio109, gpio110, + gpio111, gpio112, gpio113, gpio114, gpio115, gpio116, + gpio117, gpio118, gpio119, gpio120, gpio121, gpio122, + gpio123, gpio124, gpio125, gpio126, gpio127 ] + + input-debounce: true + + additionalProperties: false + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + #include + #include + pinctrl: pinctrl@b8003000 { + compatible =3D "nuvoton,wpcm450-pinctrl"; + reg =3D <0xb8003000 0x1000>; + #address-cells =3D <1>; + #size-cells =3D <0>; + + gpio0: gpio@0 { + reg =3D <0>; + gpio-controller; + #gpio-cells =3D <2>; + interrupts =3D <2 IRQ_TYPE_LEVEL_HIGH + 3 IRQ_TYPE_LEVEL_HIGH + 4 IRQ_TYPE_LEVEL_HIGH>; + nuvoton,interrupt-map =3D <0 16 0>; + }; + + mux_rmii2 { + groups =3D "rmii2"; + function =3D "rmii2"; + }; + + pinmux_uid: mux_uid { + groups =3D "gspi", "sspi"; + function =3D "gpio"; + }; + + pinctrl_uid: cfg_uid { + pins =3D "gpio14"; + input-debounce =3D <1>; + }; + }; + + gpio-keys { + compatible =3D "gpio-keys"; + pinctrl-names =3D "default"; + pinctrl-0 =3D <&pinctrl_uid>, <&pinmux_uid>; + + uid { + label =3D "UID"; + linux,code =3D <102>; + gpios =3D <&gpio0 14 GPIO_ACTIVE_HIGH>; + }; + }; =2D- 2.30.2