From patchwork Thu Mar 4 20:12:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 1447488 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4Ds2G03V7zz9sW4 for ; Fri, 5 Mar 2021 07:16:56 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237982AbhCDUQV (ORCPT ); Thu, 4 Mar 2021 15:16:21 -0500 Received: from mga07.intel.com ([134.134.136.100]:17133 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237483AbhCDUQK (ORCPT ); Thu, 4 Mar 2021 15:16:10 -0500 IronPort-SDR: FJ/WzgRQoDv+2VzFgA/E46hdQvXw3ZEDiTyOMkfKUrz6wZ7hkZ/VSdOnuQQO17gZ0WH2BBmg6h AgaAyTtj2BJg== X-IronPort-AV: E=McAfee;i="6000,8403,9913"; a="251537524" X-IronPort-AV: E=Sophos;i="5.81,223,1610438400"; d="scan'208";a="251537524" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Mar 2021 12:13:03 -0800 IronPort-SDR: jDvoZbqh1YyXX2x7kCfpMk0WbIt+wBeQ6z8VNiOjeUQAf47LnitebRNrPQqO08piskAjNBZe16 dYtnP1XBW/YA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,223,1610438400"; d="scan'208";a="518783505" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga004.jf.intel.com with ESMTP; 04 Mar 2021 12:13:00 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 9009F29E; Thu, 4 Mar 2021 22:13:00 +0200 (EET) From: Andy Shevchenko To: Andy Shevchenko , Mika Westerberg , Linus Walleij , 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 v3 3/5] gpiolib: Move of_node operations to gpiolib-of and correct fwnode use Date: Thu, 4 Mar 2021 22:12:51 +0200 Message-Id: <20210304201253.14652-4-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210304201253.14652-1-andriy.shevchenko@linux.intel.com> References: <20210304201253.14652-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org The initial value of the OF node based on presence of parent, but at the same time this operation somehow appeared separately from others that handle the OF case. On the other hand there is no need to assign dev->fwnode in the OF case if code properly retrieves fwnode, i.e. via dev_fwnode() helper. Amend gpiolib.c and gpiolib-of.c code in order to group OF operations. Signed-off-by: Andy Shevchenko Reviewed-by: Linus Walleij --- drivers/gpio/gpiolib-of.c | 6 ++++-- drivers/gpio/gpiolib.c | 9 ++++----- 2 files changed, 8 insertions(+), 7 deletions(-) diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index baf0153b7bca..bbcc7c073f63 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -1042,11 +1042,13 @@ void of_gpiochip_remove(struct gpio_chip *chip) void of_gpio_dev_init(struct gpio_chip *gc, struct gpio_device *gdev) { + /* Set default OF node to parent's one if present */ + if (gc->parent) + gdev->dev.of_node = gc->parent->of_node; + /* If the gpiochip has an assigned OF node this takes precedence */ if (gc->of_node) gdev->dev.of_node = gc->of_node; else gc->of_node = gdev->dev.of_node; - if (gdev->dev.of_node) - gdev->dev.fwnode = of_fwnode_handle(gdev->dev.of_node); } diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 083d7e1c7cde..2a3d562eb8c1 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -585,12 +585,9 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data, if (!gdev) return -ENOMEM; gdev->dev.bus = &gpio_bus_type; + gdev->dev.parent = gc->parent; gdev->chip = gc; gc->gpiodev = gdev; - if (gc->parent) { - gdev->dev.parent = gc->parent; - gdev->dev.of_node = gc->parent->of_node; - } of_gpio_dev_init(gc, gdev); @@ -4212,11 +4209,13 @@ EXPORT_SYMBOL_GPL(gpiod_put_array); static int gpio_bus_match(struct device *dev, struct device_driver *drv) { + struct fwnode_handle *fwnode = dev_fwnode(dev); + /* * Only match if the fwnode doesn't already have a proper struct device * created for it. */ - if (dev->fwnode && dev->fwnode->dev != dev) + if (fwnode && fwnode->dev != dev) return 0; return 1; }