From patchwork Tue Nov 15 17:54:12 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Niyas Sait X-Patchwork-Id: 625303 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 1477EC4332F for ; Tue, 15 Nov 2022 17:54:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231588AbiKORyf (ORCPT ); Tue, 15 Nov 2022 12:54:35 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48772 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231629AbiKORyb (ORCPT ); Tue, 15 Nov 2022 12:54:31 -0500 Received: from mail-wr1-x431.google.com (mail-wr1-x431.google.com [IPv6:2a00:1450:4864:20::431]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 429132DA8C for ; Tue, 15 Nov 2022 09:54:30 -0800 (PST) Received: by mail-wr1-x431.google.com with SMTP id y16so25589311wrt.12 for ; Tue, 15 Nov 2022 09:54:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=YkgVHw+c9pvtOh4Y/MxKYOBifczQlOTzWXiETzzGzA4=; b=u8T/hn4r5IR3PLikK91l7uMdx0NaqKkQXAGQRH3BVoQCHGezP1SQtpKFVCUa9gQpYf DDJ9uTHbASZjLsSzMrfUHoZGQT4EYzRBhSRTL8ISdExI7FgvL3ZPgWZeGj2jMNHwlfvV RxuvzF/ubd4zVCnZexYqb7XpyyELqns5JMEhkwztHggqkMwtu1SACK64RXABiiVXKYNt GG70GcTO4v/UtjvmDVDgJnuY1Zfts4ZKKohIigBFuUWE9Eon7H9Gyb6r9Wbg2wfhxCd3 GGX42D56uX4UM1kjw+VRY5lyE6Y/5u/xN3t8vtDwkPPw/Akvjgb/ghRU7CqfDtNWlRZp oLJw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=YkgVHw+c9pvtOh4Y/MxKYOBifczQlOTzWXiETzzGzA4=; b=NRbM8i0v1nzl+/Ca2jpBiHoe6dao6zT28nauTNUA7jY5t0ons1qMqMFssXN7rOoxKl pTWpOwWU9LOt5OLjy2J5asr8xew221DHKw6YJplUJCyACF9YNlwYZah9tCGnjqTP6whH UmShWhd501B4RQE5tz1x1PKqVcsM6yRAAFijl/fPVIqdPmWHpa6M/iVYUf3balY8Ui4N /NW0wNYPdrdtgOwBeBIZy5zrEtUCpfLUhnUNQC9EG6CLCIfCHe73zyBfnVeMClf8tcHR 0ElhgnCptCz4i55l+dkhoFtULxNr/elgpF4krdlIDGTDI+BftTtnHXu7tSSq3PP0nN8S 4V0w== X-Gm-Message-State: ANoB5pmPvX3GWJ/QTeGUKAnMof6uO2QKrmAKug+yEfG/YTTsrSmQ6vla 8n7Hi0yQ5s+qgNmHj44BTFwipBDn196/xmc9 X-Google-Smtp-Source: AA0mqf5jmhJVv6wInX8RFjHZz4ubAWb9pVuX9LTJE9yX9bQnHPv6X/PB5GfGOgmRN7iLuFKZ6FKZVw== X-Received: by 2002:adf:f009:0:b0:236:657e:757e with SMTP id j9-20020adff009000000b00236657e757emr11642379wro.350.1668534868507; Tue, 15 Nov 2022 09:54:28 -0800 (PST) Received: from localhost.localdomain ([212.228.7.114]) by smtp.gmail.com with ESMTPSA id f20-20020a05600c155400b003c6f3e5ba42sm26599521wmg.46.2022.11.15.09.54.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Nov 2022 09:54:27 -0800 (PST) From: Niyas Sait To: linux-gpio@vger.kernel.org, andriy.shevchenko@linux.intel.com, mika.westerberg@linux.intel.com, rafael@kernel.org, linus.walleij@linaro.org Cc: Niyas Sait Subject: [PATCH RFC v2 0/3] pinctrl: add ACPI support to pin controller Date: Tue, 15 Nov 2022 17:54:12 +0000 Message-Id: <20221115175415.650690-1-niyas.sait@linaro.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org This is a proposal for adding ACPI support to pin controller. The patch supports following resources introduced in ACPI from v6.2 - PinFunction - PinConfig - PinGroupFunction - PinGroupConfig - PinGroup The patch has been tested on NXP I.MX8MP Plus platform with ACPI. --- V2: 1, Fix styling issues pointed out by Mika Westerberg 2, Added a new interface to free pin group descriptor 3, Added vendor length to the descriptors 4, Reworked map_config_acpi_to_general to pass an error value 5, Few refactoring to keep functions shorter 6, Dropped new generic pinconf types added in v1 Niyas Sait (3): pinctrl: add support for ACPI PinGroup resource pinconf-generic: clarify pull up and pull down config values pinctrl: add support for ACPI pin function and config resources drivers/pinctrl/Makefile | 1 + drivers/pinctrl/core.c | 18 +- drivers/pinctrl/core.h | 3 + drivers/pinctrl/pinctrl-acpi.c | 542 ++++++++++++++++++++++++ drivers/pinctrl/pinctrl-acpi.h | 78 ++++ include/linux/pinctrl/pinconf-generic.h | 6 +- include/linux/pinctrl/pinctrl.h | 15 + 7 files changed, 657 insertions(+), 6 deletions(-) create mode 100644 drivers/pinctrl/pinctrl-acpi.c create mode 100644 drivers/pinctrl/pinctrl-acpi.h