From patchwork Thu Jun 3 07:06:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Leizhen (ThunderTown)" X-Patchwork-Id: 12296423 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=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 EC127C47096 for ; Thu, 3 Jun 2021 07:08:20 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id AC05160FE9 for ; Thu, 3 Jun 2021 07:08:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AC05160FE9 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=pqVMAm0bi54JwEVqj/z46DwLuWDO4vqI0fi6VfWpYIQ=; b=f94Lpqt1cg31ag K24cuXumrhj2RmE57nUzXm9/IwUwgdFd46ZBZtX4/etMp1H/64FFh1S518SDy16zHyYYkO/HLa4Mb GqBjBFABOuLe5ASQitgqDCkBIsNMUNHNYBp0cH2Ce+CCxRBIlRgbeI9eJrgkmwI6TZxGWXeL4ksYO kPuM8guX3GFfiRR0CLb+p4cRF20Q/akOK2IIrUTgbmotos4P/hzA56opDhBBBkXRhCHa526kPGYZZ xzpQiadyswQRYAt4VMurHhMMCtQoZdnTavLlYIADl/lSNKyzTHWj8fjOKb/XoOrEUpkHIHwoKLQJA pi0Lnz9LPJE5Wv0HuWzw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1lohQz-007PNr-03; Thu, 03 Jun 2021 07:06:29 +0000 Received: from szxga03-in.huawei.com ([45.249.212.189]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1lohQv-007PLK-Ft for linux-arm-kernel@lists.infradead.org; Thu, 03 Jun 2021 07:06:27 +0000 Received: from dggemv704-chm.china.huawei.com (unknown [172.30.72.55]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4FwcKQ5S8Kz67n9; Thu, 3 Jun 2021 15:02:34 +0800 (CST) Received: from dggpemm500006.china.huawei.com (7.185.36.236) by dggemv704-chm.china.huawei.com (10.3.19.47) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Thu, 3 Jun 2021 15:06:20 +0800 Received: from thunder-town.china.huawei.com (10.174.177.72) by dggpemm500006.china.huawei.com (7.185.36.236) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.2; Thu, 3 Jun 2021 15:06:19 +0800 From: Zhen Lei To: Sylwester Nawrocki , Mauro Carvalho Chehab , Krzysztof Kozlowski , linux-media , linux-arm-kernel , linux-samsung-soc CC: Zhen Lei Subject: [PATCH 1/1] media: exynos4-is: use DEVICE_ATTR_RW() helper macro Date: Thu, 3 Jun 2021 15:06:13 +0800 Message-ID: <20210603070613.11385-1-thunder.leizhen@huawei.com> X-Mailer: git-send-email 2.26.0.windows.1 MIME-Version: 1.0 X-Originating-IP: [10.174.177.72] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To dggpemm500006.china.huawei.com (7.185.36.236) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210603_000625_710003_04345B1F X-CRM114-Status: UNSURE ( 9.55 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Use DEVICE_ATTR_RW() helper macro instead of DEVICE_ATTR(), which is simpler and more readable. Due to the names of the read and write functions of the sysfs attribute is normalized, there is a natural association. Signed-off-by: Zhen Lei --- drivers/media/platform/exynos4-is/media-dev.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c index 3b8a24bb724c8e9..fa648721eaab9a5 100644 --- a/drivers/media/platform/exynos4-is/media-dev.c +++ b/drivers/media/platform/exynos4-is/media-dev.c @@ -1238,8 +1238,8 @@ static const struct media_device_ops fimc_md_ops = { .link_notify = fimc_md_link_notify, }; -static ssize_t fimc_md_sysfs_show(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t subdev_conf_mode_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct fimc_md *fmd = dev_get_drvdata(dev); @@ -1249,9 +1249,9 @@ static ssize_t fimc_md_sysfs_show(struct device *dev, return strscpy(buf, "V4L2 video node only API (vid-dev)\n", PAGE_SIZE); } -static ssize_t fimc_md_sysfs_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t subdev_conf_mode_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) { struct fimc_md *fmd = dev_get_drvdata(dev); bool subdev_api; @@ -1278,8 +1278,7 @@ static ssize_t fimc_md_sysfs_store(struct device *dev, * sub-dev - for media controller API, subdevs must be configured in user * space before starting streaming. */ -static DEVICE_ATTR(subdev_conf_mode, S_IWUSR | S_IRUGO, - fimc_md_sysfs_show, fimc_md_sysfs_store); +static DEVICE_ATTR_RW(subdev_conf_mode); static int cam_clk_prepare(struct clk_hw *hw) {