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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 E0417CA9EA0 for ; Fri, 25 Oct 2019 06:59:40 +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 B2E7820867 for ; Fri, 25 Oct 2019 06:59:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Zn6jFy17" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B2E7820867 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nxp.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-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.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date: Subject: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=1Gpc5cX+LgKWbcEL1eMu8WFHJwsD/tJbNnRkUBRllXg=; b=Zn6 jFy174V5hXEvKbnHaKGUCdKc07mlPKzDCHzqZKcqoBUxSE1CN97rSfgFGapwRUNYaG4W217gpTEN+ SD8V8Eaps+uRkQa3nQ1Qhry37D0IzU2CLt4F8IyoFNYqgj1ZgAnnBMd5OhES/57S4uhFUCCjV7Tuq Jb/j6VV377COXjqlwYUnyZoGDCfAYYRNZQ64OufR5mDaxVUbTpe2beB+99yKz3Cg6xrT7TDhc7oHC 014IVi9svweiJi7G9v8DuLnW3AMhZduqUU/3hAwyfnxuJiPPJI+D+sGk2aPd4tYnwABii0k8dxGs6 1CuWEZDLgb1cUTYNHBi5Dyr4y3SQ8yA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iNtZS-0001Uu-PH; Fri, 25 Oct 2019 06:59:38 +0000 Received: from inva021.nxp.com ([92.121.34.21]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iNtZQ-0001U0-6q for linux-arm-kernel@lists.infradead.org; Fri, 25 Oct 2019 06:59:37 +0000 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 51A0E2008F3; Fri, 25 Oct 2019 08:59:33 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 0A94B200438; Fri, 25 Oct 2019 08:59:28 +0200 (CEST) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 432B2402BC; Fri, 25 Oct 2019 14:59:21 +0800 (SGT) From: Anson Huang To: shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, daniel.baluta@nxp.com, aisheng.dong@nxp.com, abel.vesa@nxp.com, leonard.crestez@nxp.com, viresh.kumar@linaro.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/2] soc: imx8: Using existing serial_number instead of UID Date: Fri, 25 Oct 2019 14:56:22 +0800 Message-Id: <1571986583-21138-1-git-send-email-Anson.Huang@nxp.com> X-Mailer: git-send-email 2.7.4 X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191024_235936_414197_1CD0B318 X-CRM114-Status: GOOD ( 10.70 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Linux-imx@nxp.com MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org The soc_device_attribute structure already contains a serial_number attribute to show SoC's unique ID, just use it to show SoC's unique ID instead of creating a new file called soc_uid. Signed-off-by: Anson Huang --- drivers/soc/imx/soc-imx8.c | 23 +++++++++-------------- 1 file changed, 9 insertions(+), 14 deletions(-) diff --git a/drivers/soc/imx/soc-imx8.c b/drivers/soc/imx/soc-imx8.c index b9831576..fcbf745 100644 --- a/drivers/soc/imx/soc-imx8.c +++ b/drivers/soc/imx/soc-imx8.c @@ -29,14 +29,6 @@ struct imx8_soc_data { static u64 soc_uid; -static ssize_t soc_uid_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "%016llX\n", soc_uid); -} - -static DEVICE_ATTR_RO(soc_uid); - static u32 __init imx8mq_soc_revision(void) { struct device_node *np; @@ -174,22 +166,25 @@ static int __init imx8_soc_init(void) goto free_soc; } + soc_dev_attr->serial_number = kasprintf(GFP_KERNEL, "%016llX", soc_uid); + if (!soc_dev_attr->serial_number) { + ret = -ENOMEM; + goto free_rev; + } + soc_dev = soc_device_register(soc_dev_attr); if (IS_ERR(soc_dev)) { ret = PTR_ERR(soc_dev); - goto free_rev; + goto free_serial_number; } - ret = device_create_file(soc_device_to_device(soc_dev), - &dev_attr_soc_uid); - if (ret) - goto free_rev; - if (IS_ENABLED(CONFIG_ARM_IMX_CPUFREQ_DT)) platform_device_register_simple("imx-cpufreq-dt", -1, NULL, 0); return 0; +free_serial_number: + kfree(soc_dev_attr->serial_number); free_rev: if (strcmp(soc_dev_attr->revision, "unknown")) kfree(soc_dev_attr->revision); -- 2.7.4 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel