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Fri, 13 Oct 2017 09:27:18 +0000 From: Peter Rosin To: linux-kernel@vger.kernel.org Subject: [PATCH 2/2] ARM: dts: at91: disable the nxp, se97b SMBUS timeout on the TSE-850 Date: Fri, 13 Oct 2017 11:27:05 +0200 Message-Id: <20171013092705.7038-3-peda@axentia.se> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20171013092705.7038-1-peda@axentia.se> References: <20171013092705.7038-1-peda@axentia.se> MIME-Version: 1.0 X-Originating-IP: [213.112.203.125] X-ClientProxiedBy: HE1PR05CA0156.eurprd05.prod.outlook.com (2603:10a6:7:28::43) To HE1PR0202MB2553.eurprd02.prod.outlook.com (2603:10a6:3:8f::23) X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 071d4ed7-7dfd-46c6-6836-08d5121c99c0 X-Microsoft-Antispam: UriScan:; BCL:0; PCL:0; RULEID:(22001)(2017030254152)(2017082002075)(2017052603199)(201703131423075)(201702281549075); SRVR:HE1PR0202MB2553; X-Microsoft-Exchange-Diagnostics: 1; HE1PR0202MB2553; 3:5RPzAm7XsR39ZAuB2IS55W1A27QahMKv+lcsZ8prhoZiVS+3+wOh0X4Z23M1cQG5FDEXbvQTKbXsMKcw1fVEViiF0Qyzb6VAiI1P/0tx+P56Pe5Bv8NUAak9LImPSy/N/2Ynch+58XI7aJO1EfppnwLtrgwgmRwRI7WT7W1+IDK2Fskbd4SRuPptoNJ+jOZLp82LnJ/YWqSzl1YHGDEHM4G84S2wCZOKd6rFZrAqsUrvoJ80A2kL9pg0DZ5Heym1; 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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Jean Delvare , Russell King , Rob Herring , Alexandre Belloni , linux-arm-kernel@lists.infradead.org, linux-hwmon@vger.kernel.org, Peter Rosin , Guenter Roeck Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP The I2C adapter driver is sometimes slow, causing the SCL line to be stuck low for more than the stipulated SMBUS timeout of 25-35 ms. This causes the client device to give up which in turn causes silent corruption of data. So, disable the SMBUS timeout in the client device. Signed-off-by: Peter Rosin --- arch/arm/boot/dts/at91-tse850-3.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/at91-tse850-3.dts b/arch/arm/boot/dts/at91-tse850-3.dts index 5f29010cdbd8..9b82cc8843e1 100644 --- a/arch/arm/boot/dts/at91-tse850-3.dts +++ b/arch/arm/boot/dts/at91-tse850-3.dts @@ -221,6 +221,7 @@ jc42@18 { compatible = "nxp,se97b", "jedec,jc-42.4-temp"; reg = <0x18>; + smbus-timeout-disable; }; dpot: mcp4651-104@28 {