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Mon, 27 Nov 2017 16:31:12 +0000 From: Peter Rosin To: linux-kernel@vger.kernel.org Subject: [PATCH v2 2/2] ARM: dts: at91: disable the nxp, se97b SMBUS timeout on the TSE-850 Date: Mon, 27 Nov 2017 17:31:01 +0100 Message-Id: <20171127163101.27859-3-peda@axentia.se> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20171127163101.27859-1-peda@axentia.se> References: <20171127163101.27859-1-peda@axentia.se> MIME-Version: 1.0 X-Originating-IP: [85.226.244.23] X-ClientProxiedBy: DB6P18901CA0019.EURP189.PROD.OUTLOOK.COM (2603:10a6:4:16::29) To AM5PR0202MB2546.eurprd02.prod.outlook.com (2603:10a6:203:6d::7) X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: a6b730f9-02cf-494a-1244-08d535b44644 X-Microsoft-Antispam: UriScan:; BCL:0; PCL:0; RULEID:(4534020)(4602075)(4603075)(4627115)(201702281549075)(5600026)(4604075)(2017052603199); SRVR:AM5PR0202MB2546; X-Microsoft-Exchange-Diagnostics: 1; AM5PR0202MB2546; 3:vnlQAZC0gRco1oNJTWc0TdHf2UtxB0p/uHyzG8KuEQW/4fIrizkGB3b8Btx9CV9CgLHROuaDILc8uPd5fJEEz+BaIF+QvDBaU7NvSAARdWQXYot5yXOZ2ulj9hlGunfamhG3NOwgt5RuZPjFTQgzRDg+KFiCgNWr/J8S8UUWv3FeQNR8IsliSzibhdb0Xm7cf4SX5SADHEGQmFNDB9yQ28+2XQfqtc2+gkje8a0rezPtSntOn/ef1LobDYGH9yvR; 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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 , Ludovic Desroches , 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 Acked-by: Guenter Roeck --- 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 {