From patchwork Sun Mar 12 23:36:12 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andi Shyti X-Patchwork-Id: 68600 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:5915:0:0:0:0:0 with SMTP id v21csp922450wrd; Sun, 12 Mar 2023 16:42:55 -0700 (PDT) X-Google-Smtp-Source: AK7set8vsA5DtWH6hSaLEQx2Yies6SLswqFTI0Gq+qUiumRDfZFBoQgPUynJNZbYL967LUR7vm2u X-Received: by 2002:a05:6a20:4292:b0:ce:3093:3f4 with SMTP id o18-20020a056a20429200b000ce309303f4mr31054381pzj.33.1678664575315; Sun, 12 Mar 2023 16:42:55 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1678664575; cv=none; d=google.com; s=arc-20160816; b=FUQ4qZRnE2WgJlLiyRPYQPFVd/7ModO5/X0ChKrA3vRLE4lgj8ocPSjcLuuRoCUics gEuM02qcXyVOFtEC7G7d5q3x6U/uj0lyFqgObf+5Z+jCn0ZwJPnCnb8UPIneCXbSVIH+ ZXrLoo/Zafw3W0aem78bI1o6TYeTd3RFQeEKXA/JVE9bJZ4923/Zkysi0/5soqZbIADZ FtvrdQwKYxrzQFiRvEyzhAMdtBOWJpe54nc/3KwSk5c9c6uMBO7QBrh16HsbkHvWh8X2 qDy2mH24dKicnQ1EPo2RTob2+9Q/hhIRxqIRvsrZcl1xrBzRSmg9HVpxeTUMjK4ZIwpe Qj4g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=O1687LKSuq6CfeyLdNzqIBvLMMHzHT+JB3bJGQkZfLA=; b=ahr09zQcuFNSYQA2MxXeFOKYxgCXdvk2nksOPzKBKDa2TcNJ4mg44cpUE6fgnNzG9Z 78i8divmpA8Kwh+C3tlfOVoijTZQt6NAE186OPKWjIYAt4c4VLgu5AyXf1wgS04PAF7J 9SOyX7/2RyfLd1KQYvOa6xmyoh2gFHPMGhmunXRPW/QMblDX6dIC2OZpBTpiWoEM83JI XrBe0WlXafZCCnvg28i3s743tDrBgR8+pzw5/MiHCTWZMyrSwrzkrERo+o5bS2PLeK/K jgrV27iI5wM/KYHa6cFyp7bsoaUULqZf6pGOlNAXoeN5964cj4PtXnHx73wM4Gd1N2GU x2cA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=c4sTX34c; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id z18-20020a63d012000000b004fbbf27c7a4si5111341pgf.836.2023.03.12.16.42.39; Sun, 12 Mar 2023 16:42:55 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=c4sTX34c; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229922AbjCLXgz (ORCPT + 99 others); Sun, 12 Mar 2023 19:36:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33238 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229853AbjCLXgu (ORCPT ); Sun, 12 Mar 2023 19:36:50 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 778183B0F9; Sun, 12 Mar 2023 16:36:49 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 249D3B80DC2; Sun, 12 Mar 2023 23:36:48 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 77865C433D2; Sun, 12 Mar 2023 23:36:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1678664206; bh=88sh/0qmNZho5AB9/p+qRe7wGUzsLQrW9fXpLSBci6o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=c4sTX34col0YRAGwDG19tO1bpdVEG3ryPq9nda3wK2n8l0frUIR/r33ZjSlwaCpov dBY4CxZ8Ij14EkeJRNhXaSZZYKjzX1YPP/JoNMluFaP+Y0Z99S1jn3fbwztZYTFxLw cyJLiKpDX5Ttvl24BnWRIG3XIYTvMotfamZr5+hYwDRGLZQDLoQ1RKxmpDIFJDilc1 N5BO9PN7hVQxqMVWOq90M0vUwN9HvijI9WEj5MJT9uV6muNsDxnGqaTtmhrCilqmeM IwqXa9DaMbyjbN+xYZBbkWG84fXN/JQH5DaBC47t5YrPsK09IGoKiJTvUqi8a8w+q7 EBkONXihk/nRg== From: Andi Shyti To: linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Wolfram Sang , Rob Herring , Krzysztof Kozlowski , Chris Packham , Ryan Chen , Andi Shyti Subject: [PATCH v3 2/3] i2c: mpc: Use of_property_read_u32 instead of of_get_property Date: Mon, 13 Mar 2023 00:36:12 +0100 Message-Id: <20230312233613.303408-3-andi.shyti@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230312233613.303408-1-andi.shyti@kernel.org> References: <20230312233613.303408-1-andi.shyti@kernel.org> MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1760207385579326226?= X-GMAIL-MSGID: =?utf-8?q?1760207385579326226?= "of_property_read_u32()" is preferred to "of_get_property()" for retreiving u32 from the device tree. Replace it. Suggested-by: Chris Packham Signed-off-by: Andi Shyti Reviewed-by: Chris Packham Tested-by: Chris Packham --- drivers/i2c/busses/i2c-mpc.c | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c index 81ac92bb4f6f..87e5c1725750 100644 --- a/drivers/i2c/busses/i2c-mpc.c +++ b/drivers/i2c/busses/i2c-mpc.c @@ -770,7 +770,6 @@ static const struct i2c_algorithm mpc_algo = { static struct i2c_adapter mpc_ops = { .owner = THIS_MODULE, .algo = &mpc_algo, - .timeout = HZ, }; static struct i2c_bus_recovery_info fsl_i2c_recovery_info = { @@ -781,11 +780,9 @@ static int fsl_i2c_probe(struct platform_device *op) { const struct mpc_i2c_data *data; struct mpc_i2c *i2c; - const u32 *prop; - u32 clock = MPC_I2C_CLOCK_LEGACY; - int result = 0; - int plen; struct clk *clk; + int result; + u32 clock; int err; i2c = devm_kzalloc(&op->dev, sizeof(*i2c), GFP_KERNEL); @@ -831,10 +828,10 @@ static int fsl_i2c_probe(struct platform_device *op) if (of_property_read_bool(op->dev.of_node, "fsl,preserve-clocking")) { clock = MPC_I2C_CLOCK_PRESERVE; } else { - prop = of_get_property(op->dev.of_node, "clock-frequency", - &plen); - if (prop && plen == sizeof(u32)) - clock = *prop; + result = of_property_read_u32(op->dev.of_node, + "clock-frequency", &clock); + if (result) + clock = MPC_I2C_CLOCK_LEGACY; } data = device_get_match_data(&op->dev); @@ -846,12 +843,16 @@ static int fsl_i2c_probe(struct platform_device *op) mpc_i2c_setup_8xxx(op->dev.of_node, i2c, clock); } - prop = of_get_property(op->dev.of_node, "fsl,timeout", &plen); - if (prop && plen == sizeof(u32)) { - mpc_ops.timeout = *prop * HZ / 1000000; + result = of_property_read_u32(op->dev.of_node, + "fsl,timeout", &mpc_ops.timeout); + if (!result) { + mpc_ops.timeout *= HZ / 1000000; if (mpc_ops.timeout < 5) mpc_ops.timeout = 5; + } else { + mpc_ops.timeout = HZ; } + dev_info(i2c->dev, "timeout %u us\n", mpc_ops.timeout * 1000000 / HZ); if (of_property_read_bool(op->dev.of_node, "fsl,i2c-erratum-a004447"))