From patchwork Thu Oct 22 15:58:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Saenz Julienne X-Patchwork-Id: 285570 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=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, 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 8C9F4C56201 for ; Thu, 22 Oct 2020 16:00:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 40ED32463D for ; Thu, 22 Oct 2020 16:00:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S368886AbgJVP7M (ORCPT ); Thu, 22 Oct 2020 11:59:12 -0400 Received: from mx2.suse.de ([195.135.220.15]:48528 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S368870AbgJVP7L (ORCPT ); Thu, 22 Oct 2020 11:59:11 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id DC564ADF5; Thu, 22 Oct 2020 15:59:08 +0000 (UTC) From: Nicolas Saenz Julienne To: u.kleine-koenig@pengutronix.de, linux-kernel@vger.kernel.org, Linus Walleij , Bartosz Golaszewski Cc: f.fainelli@gmail.com, linux-pwm@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, wahrenst@gmx.net, linux-input@vger.kernel.org, dmitry.torokhov@gmail.com, gregkh@linuxfoundation.org, devel@driverdev.osuosl.org, p.zabel@pengutronix.de, linux-gpio@vger.kernel.org, linux-clk@vger.kernel.org, sboyd@kernel.org, linux-rpi-kernel@lists.infradead.org, Nicolas Saenz Julienne Subject: [PATCH v2 03/10] gpio: raspberrypi-exp: Release firmware handle on unbind Date: Thu, 22 Oct 2020 17:58:50 +0200 Message-Id: <20201022155858.20867-4-nsaenzjulienne@suse.de> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201022155858.20867-1-nsaenzjulienne@suse.de> References: <20201022155858.20867-1-nsaenzjulienne@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Upon unbinding the device make sure we release RPi's firmware interface. Signed-off-by: Nicolas Saenz Julienne --- drivers/gpio/gpio-raspberrypi-exp.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/gpio/gpio-raspberrypi-exp.c b/drivers/gpio/gpio-raspberrypi-exp.c index bb100e0124e6..c008336e1131 100644 --- a/drivers/gpio/gpio-raspberrypi-exp.c +++ b/drivers/gpio/gpio-raspberrypi-exp.c @@ -231,8 +231,19 @@ static int rpi_exp_gpio_probe(struct platform_device *pdev) rpi_gpio->gc.get = rpi_exp_gpio_get; rpi_gpio->gc.set = rpi_exp_gpio_set; rpi_gpio->gc.can_sleep = true; + platform_set_drvdata(pdev, rpi_gpio); - return devm_gpiochip_add_data(dev, &rpi_gpio->gc, rpi_gpio); + return gpiochip_add_data(&rpi_gpio->gc, rpi_gpio); +} + +static int rpi_exp_gpio_remove(struct platform_device *pdev) +{ + struct rpi_exp_gpio *rpi_gpio = platform_get_drvdata(pdev); + + gpiochip_remove(&rpi_gpio->gc); + rpi_firmware_put(rpi_gpio->fw); + + return 0; } static const struct of_device_id rpi_exp_gpio_ids[] = { @@ -247,6 +258,7 @@ static struct platform_driver rpi_exp_gpio_driver = { .of_match_table = of_match_ptr(rpi_exp_gpio_ids), }, .probe = rpi_exp_gpio_probe, + .remove = rpi_exp_gpio_remove, }; module_platform_driver(rpi_exp_gpio_driver);