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Fri, 31 May 2024 18:38:34 +0000 From: Colin Foster To: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-omap@vger.kernel.org Cc: Conor Dooley , Krzysztof Kozlowski , Rob Herring , Tony Lindgren , =?utf-8?q?Beno=C3=AEt_Cousson?= , Andrew Lunn , Andrew Halaney Subject: [PATCH V1] ARM: dts: am335x-bone-common: Increase MDIO reset deassert time Date: Fri, 31 May 2024 13:38:17 -0500 Message-Id: <20240531183817.2698445-1-colin.foster@in-advantage.com> X-Mailer: git-send-email 2.34.1 X-ClientProxiedBy: MN2PR22CA0004.namprd22.prod.outlook.com (2603:10b6:208:238::9) To DS0PR10MB6974.namprd10.prod.outlook.com (2603:10b6:8:148::12) Precedence: bulk X-Mailing-List: linux-omap@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS0PR10MB6974:EE_|MW4PR10MB6654:EE_ X-MS-Office365-Filtering-Correlation-Id: 38b370d9-300e-4fc3-b25a-08dc81a0e089 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230031|366007|376005|1800799015|7416005|52116005|38350700005; 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Now that the second deassert is no longer performed, device probe failures happen due to the change in timing with the following error message: SMSC LAN8710/LAN8720: probe of 4a101000.mdio:00 failed with error -5 Restore the original effective timing, which resolves the probe failures. Signed-off-by: Colin Foster --- arch/arm/boot/dts/ti/omap/am335x-bone-common.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/ti/omap/am335x-bone-common.dtsi b/arch/arm/boot/dts/ti/omap/am335x-bone-common.dtsi index f08f116bf75a..56418baa3e86 100644 --- a/arch/arm/boot/dts/ti/omap/am335x-bone-common.dtsi +++ b/arch/arm/boot/dts/ti/omap/am335x-bone-common.dtsi @@ -385,7 +385,7 @@ ethphy0: ethernet-phy@0 { /* Support GPIO reset on revision C3 boards */ reset-gpios = <&gpio1 8 GPIO_ACTIVE_LOW>; reset-assert-us = <300>; - reset-deassert-us = <6500>; + reset-deassert-us = <13000>; }; };