From patchwork Wed Jun 2 12:03:21 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Jonathan_Neusch=C3=A4fer?= X-Patchwork-Id: 452815 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=-10.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS, 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 02245C4708F for ; Wed, 2 Jun 2021 12:03:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CD25A61361 for ; Wed, 2 Jun 2021 12:03:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229524AbhFBMFj (ORCPT ); Wed, 2 Jun 2021 08:05:39 -0400 Received: from mout.gmx.net ([212.227.17.22]:52611 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229482AbhFBMFj (ORCPT ); Wed, 2 Jun 2021 08:05:39 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1622635431; bh=qZQhWTowqiYkoxgkXmb/cPyIhbsC75immN9JA51QEdc=; h=X-UI-Sender-Class:From:To:Cc:Subject:Date; b=BDfuHGi8WuHAGrhX5zpQ3z78xionogXW72XsR7XgE+5jGRayl9uCmG0J4Cv7RRGhu q2F88BKS7SCNO2O7mVTti0Ef9F6FXKKuIG87psMle01TyOJDqoM/CLLIK927Tk+tfE m/uIm7Vza8/l4SKWLEsye4Ugzcq+ZrksbgKh6J4g= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from longitude ([37.201.214.247]) by mail.gmx.net (mrgmx104 [212.227.17.168]) with ESMTPSA (Nemesis) id 1MkYXm-1l74tF2IAA-00m4IC; Wed, 02 Jun 2021 14:03:51 +0200 From: =?utf-8?q?Jonathan_Neusch=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_Neusch=C3=A4fer?= Subject: [PATCH 0/8] Nuvoton WPCM450 pinctrl and GPIO driver Date: Wed, 2 Jun 2021 14:03:21 +0200 Message-Id: <20210602120329.2444672-1-j.neuschaefer@gmx.net> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 X-Provags-ID: V03:K1:IUlyBz6GVy3FvZTNDuMIU0068YJy7lfTqN9vz0te/7WdNJ+uQH6 LhaVf27+sP0fS0jrph/qhiKLByDfd2/9CKo4aXIcT/wkEJItJ5qZeb8VXft/lnTykxwahcO opNE/uMKAnVXN48iEjhfdnuIUs4AwDTpesl6liZjNyk9eQDFtxInmeEdre9qF4dvYw8tWuS +VoVDQB8xQONJzwEwDm3A== X-UI-Out-Filterresults: notjunk:1; V03:K0:vqQs+XfWXTU=:f6JmwZ/CsuoalnE9uTIxk6 ySJ1/fwPWwJ00RUsSebb66g+MibxEZQR5MFVjYbxVUPJv12KcaO/aKldZZ6rQYRRHfEAZW2CL XmfPr6m0VTuqv22VCk7+w1G0TFyI3zyLnZfbOM2xcmKpT+zxAj+y3Ssu3svxoAThZBdYMDad+ J3Ojrk4ZqjGfPae3A/AyhSskPVcURJUtE/zSsjEWEAGqar6K3mZ/za0Rfl9zSb/ZSJ8FVJmNh m+8au1hl3Xlrzv5O3cq+hw7vG3W77d1kMa/JhE/6ZFIo7pEDw8Ly/wqyjqSBJ5pm0j8RclgWk jqc+5LXRwnUOoKZLmZilc6U31xb5GCLO5Xd5P39e2QAPTnp58Abdgf2sVcR1A3Te1cHd06wM1 JN2vNFBhdhv44CekSTYt8FeRRKh4IfK/v5TefkT/Pw5rljoDcnxaG0sPDH7BrRG9AzpWG4Q1F xTOGr6cgTIZ6y74t46JbgELT4cEvCDXM9U40h3rULYTn3w0HDNg94zRq7vuYY/sOmZ//9UZKk WtmCRhbn3Zc158fg4tloRxMQd+7n5Fpl+d+TAbgQk9FFOezjBK3JtqBuM3WlVXkwp+QfzTlpf muFrEh6UDAWAHWGmDUsAsED56Rld6rPLFvVlDDARKnEseEbo9LVuz0Zq7MVUQnUHrQosuQzzJ Kr0/t+J8D2uzFkqd06dEzIXEb1WM0aSQBkqSkeT3BdjFaiJBYxuqVPT7ZNKgIuSXThHBiUIfY AW9fGSiISGWNxOu5Ae7ZQurPQeuZqXq0PlNdCfEwZxrHkcCXxhR3ysfH0zA11N2p1QVdIEdzq NxJWVGYR+iHgMFNsYxlADxok/0S2Yn8CpMqzyvveAljhUTDANIHP4TmkYkKJFTY37lZwLfP85 PXH9Whk8zYEXOgp0JXoWwBmsTvIaVNhiHg9HHcmbU286hr3VpmmmHXb1JgyUCXbtzNU0zCsCX n6ObvV9LImrF+e3bq8qHDtJcxNpz4i1dibzoIUxzlokkaGaHMpitIk419rLpvLjVpd3v/P86u 8GRwvRj8FqBxLismpJSq5B62Mli6gqHVg8GL7TsMGUs7Hw6AoJfrQIplq5civ/g/eobZ86U9z 8Dx2v6tchmuRXYMgB0u2HOMnlF40QdMYgDb9+NXyJZge4il7ssiz1Bh7g== Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org This series adds support for pinctrl and GPIO in the Nuvoton WPCM450 SoC. Both my DT bindings and my driver are based on the work done by others for the newer Nuvoton NPCM7xx SoC, and I've tried to keep both similar. Instead of extending the pinctrl-npcm7xx driver to add WPCM450 support, I copied/forked it. The pinmux mechanism is very similar (using MFSEL1 and MFSEL2 registers), but the GPIO register interface has been redesigned for NPCM7xx; adding support for the older GPIO controller would make the driver harder to understand, while only enabling a small amount of code sharing. The DT binding in YAML format might make a good template for also converting the nuvoton,npcm7xx-pinctrl binding to YAML. Both in the DT binding and in the driver I kept the name "pinctrl". For the driver, I find it accurate enough because it handles pinctrl and GPIO. For the DT node, it's a bit less accurate because the register block at 0xb8003000 is about GPIOs, and pin control happens in the global control registers (GCR) block, except for input debouncing. So, "GPIO" might be the more appropriate name component there. Jonathan Neuschäfer (8): dt-bindings: arm/npcm: Add binding for global control registers (GCR) MAINTAINERS: Match all of bindings/arm/npcm/ as part of NPCM architecture ARM: dts: wpcm450: Add global control registers (GCR) node dt-bindings: pinctrl: Add Nuvoton WPCM450 pinctrl: nuvoton: Add driver for WPCM450 ARM: dts: wpcm450: Add pinctrl node ARM: dts: wpcm450: Add pin functions ARM: dts: wpcm450-supermicro-x9sci-ln4f: Add GPIO LEDs and buttons .../bindings/arm/npcm/nuvoton,gcr.yaml | 38 + .../pinctrl/nuvoton,wpcm450-pinctrl.yaml | 142 ++ MAINTAINERS | 2 + .../nuvoton-wpcm450-supermicro-x9sci-ln4f.dts | 27 + arch/arm/boot/dts/nuvoton-wpcm450.dtsi | 321 +++++ drivers/pinctrl/Makefile | 2 +- drivers/pinctrl/nuvoton/Kconfig | 14 + drivers/pinctrl/nuvoton/Makefile | 1 + drivers/pinctrl/nuvoton/pinctrl-wpcm450.c | 1230 +++++++++++++++++ 9 files changed, 1776 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/arm/npcm/nuvoton,gcr.yaml create mode 100644 Documentation/devicetree/bindings/pinctrl/nuvoton,wpcm450-pinctrl.yaml create mode 100644 drivers/pinctrl/nuvoton/pinctrl-wpcm450.c --- 2.30.2