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=-10.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS 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 E244EC433ED for ; Thu, 23 Jul 2020 01:39:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C686220781 for ; Thu, 23 Jul 2020 01:39:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387678AbgGWBjY (ORCPT ); Wed, 22 Jul 2020 21:39:24 -0400 Received: from mail.baikalelectronics.com ([87.245.175.226]:33012 "EHLO mail.baikalelectronics.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387462AbgGWBjL (ORCPT ); Wed, 22 Jul 2020 21:39:11 -0400 Received: from localhost (unknown [127.0.0.1]) by mail.baikalelectronics.ru (Postfix) with ESMTP id F0A498040A69; Thu, 23 Jul 2020 01:39:08 +0000 (UTC) X-Virus-Scanned: amavisd-new at baikalelectronics.ru Received: from mail.baikalelectronics.ru ([127.0.0.1]) by localhost (mail.baikalelectronics.ru [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id zaFfzz5IrmEE; Thu, 23 Jul 2020 04:39:08 +0300 (MSK) From: Serge Semin To: Hoan Tran , Linus Walleij , Bartosz Golaszewski , Serge Semin CC: Serge Semin , Andy Shevchenko , Andy Shevchenko , Alexey Malahov , Pavel Parkhomenko , Rob Herring , , , Subject: [PATCH 7/7] gpio: dwapb: Use resource managed GPIO-chip add data method Date: Thu, 23 Jul 2020 04:38:58 +0300 Message-ID: <20200723013858.10766-8-Sergey.Semin@baikalelectronics.ru> In-Reply-To: <20200723013858.10766-1-Sergey.Semin@baikalelectronics.ru> References: <20200723013858.10766-1-Sergey.Semin@baikalelectronics.ru> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-ClientProxiedBy: MAIL.baikal.int (192.168.51.25) To mail (192.168.51.25) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Since the resource managed version of gpiochip_add_data() will handle the GPIO-chip data automated cleanup we can freely remove the DW APB GPIO driver code responsible for that. After doing so the DW APB GPIO driver removal callback can be also fully discarded since there is nothing left to be done for it. All the cleanups are now performed by means of the device managed framework. Signed-off-by: Serge Semin --- drivers/gpio/gpio-dwapb.c | 37 ++----------------------------------- 1 file changed, 2 insertions(+), 35 deletions(-) diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c index 8588e45186ad..3d1767e69881 100644 --- a/drivers/gpio/gpio-dwapb.c +++ b/drivers/gpio/gpio-dwapb.c @@ -84,7 +84,6 @@ struct dwapb_context { struct dwapb_gpio_port { struct gpio_chip gc; - bool is_registered; struct dwapb_gpio *gpio; #ifdef CONFIG_PM_SLEEP struct dwapb_context *ctx; @@ -493,32 +492,16 @@ static int dwapb_gpio_add_port(struct dwapb_gpio *gpio, if (pp->idx == 0) dwapb_configure_irqs(gpio, port, pp); - err = gpiochip_add_data(&port->gc, port); + err = devm_gpiochip_add_data(gpio->dev, &port->gc, port); if (err) { dev_err(gpio->dev, "failed to register gpiochip for port%d\n", port->idx); return err; } - port->is_registered = true; - return 0; } -static void dwapb_gpio_unregister(struct dwapb_gpio *gpio) -{ - unsigned int m; - - for (m = 0; m < gpio->nr_ports; ++m) { - struct dwapb_gpio_port *port = &gpio->ports[m]; - - if (!port->is_registered) - continue; - - gpiochip_remove(&port->gc); - } -} - static void dwapb_get_irq(struct device *dev, struct fwnode_handle *fwnode, struct dwapb_port_property *pp) { @@ -712,23 +695,8 @@ static int dwapb_gpio_probe(struct platform_device *pdev) for (i = 0; i < gpio->nr_ports; i++) { err = dwapb_gpio_add_port(gpio, &pdata->properties[i], i); if (err) - goto out_unregister; + return err; } - platform_set_drvdata(pdev, gpio); - - return 0; - -out_unregister: - dwapb_gpio_unregister(gpio); - - return err; -} - -static int dwapb_gpio_remove(struct platform_device *pdev) -{ - struct dwapb_gpio *gpio = platform_get_drvdata(pdev); - - dwapb_gpio_unregister(gpio); return 0; } @@ -832,7 +800,6 @@ static struct platform_driver dwapb_gpio_driver = { .acpi_match_table = dwapb_acpi_match, }, .probe = dwapb_gpio_probe, - .remove = dwapb_gpio_remove, }; module_platform_driver(dwapb_gpio_driver); -- 2.26.2