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Wed, 1 May 2024 16:03:50 +0000 Received: from LV3P220MB1202.NAMP220.PROD.OUTLOOK.COM ([fe80::7d42:dbbf:4d41:6999]) by LV3P220MB1202.NAMP220.PROD.OUTLOOK.COM ([fe80::7d42:dbbf:4d41:6999%4]) with mapi id 15.20.7544.023; Wed, 1 May 2024 16:03:50 +0000 From: Min Li To: richardcochran@gmail.com, lee@kernel.org Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org, Min Li Subject: [PATCH net-next v7 3/5] ptp: clockmatrix: dco input-to-output delay is 20 FOD cycles + 8ns Date: Wed, 1 May 2024 12:03:22 -0400 Message-ID: X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240501160324.27514-1-lnimi@hotmail.com> References: <20240501160324.27514-1-lnimi@hotmail.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-TMN: [1jK8wd5RFbc0dRQpAkXM8A1yyoTZz9px] X-ClientProxiedBy: MN2PR18CA0016.namprd18.prod.outlook.com (2603:10b6:208:23c::21) To LV3P220MB1202.NAMP220.PROD.OUTLOOK.COM (2603:10b6:408:1ac::6) X-Microsoft-Original-Message-ID: <20240501160324.27514-4-lnimi@hotmail.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: LV3P220MB1202:EE_|EA2P220MB1331:EE_ X-MS-Office365-Filtering-Correlation-Id: 93718da5-a9ce-4be3-a297-08dc69f849e7 X-Microsoft-Antispam: BCL:0;ARA:14566002|461199019|440099019|3412199016; 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if (fodFreq >= 500000000) - return (u32)div_u64(18 * (u64)NSEC_PER_SEC, fodFreq); + return (u32)div_u64(20 * (u64)NSEC_PER_SEC, fodFreq) + 8; return 0; } -- 2.39.2