From mboxrd@z Thu Jan 1 00:00:00 1970 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=-13.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 5E3E8C433E1 for ; Wed, 24 Mar 2021 21:24:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2CF2161A21 for ; Wed, 24 Mar 2021 21:24:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238290AbhCXVXu (ORCPT ); Wed, 24 Mar 2021 17:23:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55440 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230048AbhCXVXa (ORCPT ); Wed, 24 Mar 2021 17:23:30 -0400 Received: from polaris.svanheule.net (polaris.svanheule.net [IPv6:2a00:c98:2060:a004:1::200]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B1844C061763 for ; Wed, 24 Mar 2021 14:23:29 -0700 (PDT) Received: from terra.local.svanheule.net (unknown [IPv6:2a02:a03f:eaff:9f01:9a93:b6b:1adc:3da7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: sander@svanheule.net) by polaris.svanheule.net (Postfix) with ESMTPSA id 2129D1E4FF5; Wed, 24 Mar 2021 22:23:27 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=svanheule.net; s=mail1707; t=1616621007; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=+/KBan7pEXMk9C2eO4o+fG6N3X0BchEzJ4IMvWHgbgc=; b=Cij5y/gxGkQOHBR9umvh3CxND9QKD9qr6ZSpEWmU8w6KEYRtelP2GGO345I1JdGSQdti/g HM3JGm3uD9L/dvZjcCRSn799Qlg54lAqrJVefbY6ax0CWXbkWBPkzn5CG165kCCk/GAkvi /XLFBUhvkHlzsXRunDvqBt4e5Al1OxMNR6G1rdEkE16QpIuKSpBPLTKqx0wApDj8TFUoik ++Gv9ksfexuOcY6AUqpz6OG5401cpr4hu5ADNUflh+Nh4FZMCpvZW9kFJlblO4Bf06oAj8 9Oqq/GncIhVJSdLuRjxmmCyy77GxfhNNof1KafhftFZkXJtcLdU7c2ibQuPklA== From: Sander Vanheule To: devicetree@vger.kernel.org, linux-gpio@vger.kernel.org Cc: bert@biot.com, bgolaszewski@baylibre.com, linus.walleij@linaro.org, linux-kernel@vger.kernel.org, maz@kernel.org, robh+dt@kernel.org, tglx@linutronix.de, Sander Vanheule Subject: [PATCH v3 0/2] Add Realtek Otto GPIO support Date: Wed, 24 Mar 2021 22:22:38 +0100 Message-Id: X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210315082339.9787-1-sander@svanheule.net> References: <20210315082339.9787-1-sander@svanheule.net> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add support for the GPIO controller employed by Realtek in multiple series of MIPS SoCs. These include the supported RTL838x and RTL839x. The register layout also matches the one found in the GPIO controller of other (Lexra-based) SoCs such as RTL8196E, RTL8197D, and RTL8197F. For the platform name 'otto', I am not aware of any official resources as to what hardware this specifically applies to. However, in all of the GPL archives we've received, from vendors using compatible SoCs in their design, the platform under the MIPS architecture is referred to by this name. The GPIO ports have been tested on a Zyxel GS1900-8 (RTL8380), and Zyxel GS1900-48 (RTL8393). Furthermore, the GPIO ports and interrupt controller have been tested on a Netgear GS110TPPv1 (RTL8381). Changes in v3: - Remove OF dependencies in driver probe - Don't accept IRQ_TYPE_NONE as a valid interrupt type - Remove (now unused) dev property from control structure - Use u8/u16 port registers, instead of raw u32 registers - Use 'line' name for gpiochip, 'port' and 'pin' names for hardware - Renamed DT bindings file - Dropped fallback-only DT compatible - Various code style clean-ups Changes in v2: - Clarify structure and usage of IMR registers - Added Linus' Reviewed-by tags Sander Vanheule (2): dt-bindings: gpio: Binding for Realtek Otto GPIO gpio: Add Realtek Otto GPIO support .../bindings/gpio/realtek,otto-gpio.yaml | 78 ++++ drivers/gpio/Kconfig | 11 + drivers/gpio/Makefile | 1 + drivers/gpio/gpio-realtek-otto.c | 335 ++++++++++++++++++ 4 files changed, 425 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/realtek,otto-gpio.yaml create mode 100644 drivers/gpio/gpio-realtek-otto.c -- 2.30.2