From patchwork Thu Mar 4 15:02:12 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 393007 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, URIBL_BLOCKED, 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 36B40C433E6 for ; Thu, 4 Mar 2021 15:05:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0762464F51 for ; Thu, 4 Mar 2021 15:05:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233179AbhCDPEw (ORCPT ); Thu, 4 Mar 2021 10:04:52 -0500 Received: from mga03.intel.com ([134.134.136.65]:17442 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233157AbhCDPEW (ORCPT ); Thu, 4 Mar 2021 10:04:22 -0500 IronPort-SDR: Ml6yuShN2bzoUHvcI/y3trJIUnPYhAMuLU3N+BW5S1zPvSIqtijSpTZJ7DAJ62aUW1/8r5wQB0 7H+ro3syyrhA== X-IronPort-AV: E=McAfee;i="6000,8403,9913"; a="187482226" X-IronPort-AV: E=Sophos;i="5.81,222,1610438400"; d="scan'208";a="187482226" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Mar 2021 07:02:34 -0800 IronPort-SDR: MmeErAbvF0SuZogZajy25eHrCpYgZ4wdGhFM60mAmjvZt+NJBLwAoWo+H5loTXq0AGIrPK8X1A wi9qDQkx/I/A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,222,1610438400"; d="scan'208";a="407826069" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga008.jf.intel.com with ESMTP; 04 Mar 2021 07:02:31 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 3FF232B7; Thu, 4 Mar 2021 17:02:31 +0200 (EET) From: Andy Shevchenko To: Andy Shevchenko , Linus Walleij , Mika Westerberg , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-acpi@vger.kernel.org Cc: Marc Zyngier , Jonathan Corbet , Bartosz Golaszewski , Thomas Gleixner , "Rafael J. Wysocki" Subject: [PATCH v2 2/5] gpiolib: Unify the checks on fwnode type Date: Thu, 4 Mar 2021 17:02:12 +0200 Message-Id: <20210304150215.80652-3-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210304150215.80652-1-andriy.shevchenko@linux.intel.com> References: <20210304150215.80652-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org We have (historically) different approaches how we identify the type of a given fwnode. Let's standardize them across the library code. Signed-off-by: Andy Shevchenko Reviewed-by: Linus Walleij --- drivers/gpio/gpiolib.c | 28 +++++++++++++--------------- 1 file changed, 13 insertions(+), 15 deletions(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index adf55db080d8..484ac92903ab 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -3678,11 +3678,12 @@ EXPORT_SYMBOL_GPL(fwnode_gpiod_get_index); */ int gpiod_count(struct device *dev, const char *con_id) { + const struct fwnode_handle *fwnode = dev_fwnode(dev); int count = -ENOENT; - if (IS_ENABLED(CONFIG_OF) && dev && dev->of_node) + if (is_of_node(fwnode)) count = of_gpio_get_count(dev, con_id); - else if (IS_ENABLED(CONFIG_ACPI) && dev && ACPI_HANDLE(dev)) + else if (is_acpi_node(fwnode)) count = acpi_gpio_count(dev, con_id); if (count < 0) @@ -3820,18 +3821,17 @@ struct gpio_desc *__must_check gpiod_get_index(struct device *dev, int ret; /* Maybe we have a device name, maybe not */ const char *devname = dev ? dev_name(dev) : "?"; + const struct fwnode_handle *fwnode = dev ? dev_fwnode(dev) : NULL; dev_dbg(dev, "GPIO lookup for consumer %s\n", con_id); - if (dev) { - /* Using device tree? */ - if (IS_ENABLED(CONFIG_OF) && dev->of_node) { - dev_dbg(dev, "using device tree for GPIO lookup\n"); - desc = of_find_gpio(dev, con_id, idx, &lookupflags); - } else if (ACPI_COMPANION(dev)) { - dev_dbg(dev, "using ACPI for GPIO lookup\n"); - desc = acpi_find_gpio(dev, con_id, idx, &flags, &lookupflags); - } + /* Using device tree? */ + if (is_of_node(fwnode)) { + dev_dbg(dev, "using device tree for GPIO lookup\n"); + desc = of_find_gpio(dev, con_id, idx, &lookupflags); + } else if (is_acpi_node(fwnode)) { + dev_dbg(dev, "using ACPI for GPIO lookup\n"); + desc = acpi_find_gpio(dev, con_id, idx, &flags, &lookupflags); } /* @@ -3915,9 +3915,6 @@ struct gpio_desc *fwnode_get_named_gpiod(struct fwnode_handle *fwnode, struct gpio_desc *desc = ERR_PTR(-ENODEV); int ret; - if (!fwnode) - return ERR_PTR(-EINVAL); - if (is_of_node(fwnode)) { desc = gpiod_get_from_of_node(to_of_node(fwnode), propname, index, @@ -3933,7 +3930,8 @@ struct gpio_desc *fwnode_get_named_gpiod(struct fwnode_handle *fwnode, acpi_gpio_update_gpiod_flags(&dflags, &info); acpi_gpio_update_gpiod_lookup_flags(&lflags, &info); - } + } else + return ERR_PTR(-EINVAL); /* Currently only ACPI takes this path */ ret = gpiod_request(desc, label);