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Mon, 29 Jul 2024 08:48:04 +0000 (GMT) Received: from epsmgmc1p1new.samsung.com (unknown [182.195.42.40]) by epsmtrp2.samsung.com (KnoxPortal) with ESMTP id 20240729084804epsmtrp2436317382069a6653acd163ab60b2192~mosc2fhqL2719827198epsmtrp2I; Mon, 29 Jul 2024 08:48:04 +0000 (GMT) X-AuditID: b6c32a49-a57ff700000025a8-f6-66a759564d7d Received: from epsmtip2.samsung.com ( [182.195.34.31]) by epsmgmc1p1new.samsung.com (Symantec Messaging Gateway) with SMTP id 65.97.07567.34757A66; Mon, 29 Jul 2024 17:48:03 +0900 (KST) Received: from FDSFTE596 (unknown [107.122.82.131]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20240729084800epsmtip29b1ee1110bd8de8987e49c08d4a39727~mosaBiuzY2816328163epsmtip2i; Mon, 29 Jul 2024 08:48:00 +0000 (GMT) From: "Swathi K S" To: "'Andrew Lunn'" Cc: , , , , , , , , , , , , , , , , , , , In-Reply-To: <22eae086-0f77-4df7-9d70-e7249d67b106@lunn.ch> Subject: RE: [PATCH v3 1/4] dt-bindings: net: Add FSD EQoS device tree bindings Date: Mon, 29 Jul 2024 14:17:59 +0530 Message-ID: <003001dae194$06218380$12648a80$@samsung.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQG0kE2cByMDcfrFjxkR49X5VWx9JAKGcKNgAXd78/0C+uayQwF2+vVQAedCxeOyB05I0A== Content-Language: en-in X-Brightmail-Tracker: H4sIAAAAAAAAA02Te0xTdxTHd3vb3sJSc4egP7roSDcmZeFRHvUWBF+M3G3GoUs084+VO3qh DPpYbwvTxc0tIPKwSngMutIRIkMQBCpvLErL1AmBJhYygyWCMHlYcOBMGMOt7YWN/z7ne873 d3LOL4cD++QgPE66QkOqFUQmn+3N7LAKgkJOfFqXGt5yDcVW58oh7LGxg42NOCww1mgeZmCG kRwm9tPAMAubuTOFYBM1iyxMNzsJY7YOHQszPRljYZPzJ7EHPQY2VjHSx8CM600s7E71Duzl 4DMIq2l/gWCTz28i2MDQLIzlmgeQA354W/1DBj5zqR3Bu/UOBK82aXFTQz4bfzR2k43fuPIt 3t21wsCX+kbZuK6tAcLbbq1A+KvvqxB8xbQ7iXsqY5+MJKSkOoBUpCil6Yq0OP5Hn0gOS6JF 4cIQoRjbyw9QEHIyjp9wJCkkMT3TNTA/IIvI1LqkJIKi+GHx+9RKrYYMkCkpTRyfVEkzVVGq UIqQU1pFWqiC1MQIw8Mjol2FyRkyXUkZQ9XB/WrQucw8Bz3yLoA4HIBGgdp+cQHkzfFBeyFQ v3wJKYC8XMEyBFYtyXTiJQTqRq8yNw3lpQdo3QwBs82J0MEsBDob/2S73Ww0GNTo+jwv+aLv AGNVKcNdBKM9TDCUV8x0J7zQWNBS0e7h7egxYPy9wmNmooFAX74AuZmLioGjwcqk+Q3wa+W0 h2H0LdDpNMBuBmgAWJ35mUU3OwGeOg0sumYn+GW1CHY3BmivF3DaLRBtSACNNbYN3g7m77Yh NPPAyqKZTbMEXNONMmmWAcdfxRv6fnDbbvCsAkYFoLknjJZ3gbL71xl0323g4to0g9a5oMu4 yW+D9YWxjSf9QUftEnIZ4uu3jKbfMpp+ywj6/7tVQ8wGyJ9UUfI0kopWCRVk9n//naKUmyDP OQR/0AU5Hj8PtUAMDmSBAAfm+3Il9tpUH66UOH2GVCslam0mSVmgaNe+i2GeX4rSdU8KjUQY JQ6PEolEUeJIkZC/k7uQWyX1QdMIDZlBkipSveljcLx45xjNewbTj74/0R32Y1ApqzhVULbr lZwaj7w7Z7xwMnl/rBZnvm5qnU0saoomI7EH+f/kLNk+thcW6hopQdC7g3vYiP9929EB05mJ w/eeVCfGnp8usTb734sfX9MHcr7cMVwo91tPePpDXfnnlVMp1+UR9VeOp0f0Zh06+E3810VD aU19gcP2D79b/Kw/NV5BHtqdrcrONj/b+/Dvlj8iwbpPTHn8IpXMmOuxtqrycu1vGo9cTHGK DmatCa+yMlpvVFsl0uNrt3jwBcyxkC/mcaZfIyoLl/tjfnvvi/GakpHTztvrgsUl8flteW3W rmOtZ09NBRKyeZPvC7lBsGI72y7shPlMSkYIg2E1RfwLgDzTdZcEAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrDIsWRmVeSWpSXmKPExsWy7bCSvK5z+PI0g0e7zS1+vpzGaPFg3jY2 i/N3DzFbrNl7jslizvkWFov5R86xWjw99ojd4t6id6wWfS8eMltc2NbHarHp8TVWi4evwi0u 75rDZjHj/D4mi3l/17JaHFsgZvHt9BtGi0Vbv7BbPPywh93iyJkXzBate4+wO4h6bFl5k8nj af9Wdo+ds+6yeyzYVOqxaVUnm8eda3vYPDYvqffYueMzk8f7fVfZPPq2rGL02LL/M6PHv6a5 7B6fN8kF8EZx2aSk5mSWpRbp2yVwZfRNnspUsI234vTbTywNjHe4uhg5OCQETCSmTXHoYuTi EBLYzShxpKWJqYuREyguKfGpeSorhC0ssfLfc3aIomeMEs9aTzODJNgEtCQW9e1jB7FFBFQk 5s2dwgRSxCxwjkWi73gHI0THWSaJxyuWgI3lFLCW2DBjKwuILSzgL7Fux1Q2EJtFQFVi1rTX jCA2r4ClxN1Vh1kgbEGJkzOfsICcyiygJ9G2EayEWUBeYvvbOcwQ1ylI/Hy6jBXiiDCJ52/n sELUiEsc/dnDPIFReBaSSbMQJs1CMmkWko4FjCyrGCVTC4pz03OTDQsM81LL9YoTc4tL89L1 kvNzNzGCE4SWxg7Ge/P/6R1iZOJgPMQowcGsJMIbf2VpmhBvSmJlVWpRfnxRaU5q8SFGaQ4W JXFewxmzU4QE0hNLUrNTUwtSi2CyTBycUg1M63IPzFuj8nni9ah70hGsEknb77BNMpx3Yvun sAtO/y3K7/ZXh51e++KWjPCviXs3np9z74b4RlelgCMKdTuPB7s8PO5nw/QmV1xnVaX9Ucuz /y/zBIdZSKdlXc384dHuuuvSf+8VmmLXfd+VF21UKOc8ork+oN/c8bOR+LFVxmG8bssLp32Y yK08pYxpud8By5SFpSdaLjyTqVz03ivj4GPGBydfmXilWvz4NEWu8/EGsw/P1vXGrEwQf8dV ed6tuy9hRq7Sn+r9bM8zeK08pxxTdlWfUd/MmVgoF6ompcL96ceNd1yntgpaXexbZxYclZEY +Pdp7ePEttPLjrya2bZ3RWO1cvWZmJ3qUptilFiKMxINtZiLihMBQNjKBn8DAAA= X-CMS-MailID: 20240729084804epcas5p2c93a488d15753f398057711aedf40494 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-Sendblock-Type: REQ_APPROVE CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20230814112605epcas5p31aca7b23e70e8d93df11414291f7ce66 References: <20230814112539.70453-1-sriranjani.p@samsung.com> <20230814112539.70453-2-sriranjani.p@samsung.com> <4e745c2a-57bd-45da-8bd2-ee1cb2bab84f@lunn.ch> <000201dab7f2$1c8d4580$55a7d080$@samsung.com> <22eae086-0f77-4df7-9d70-e7249d67b106@lunn.ch> > -----Original Message----- > From: Andrew Lunn > Sent: 06 June 2024 18:56 > To: Swathi K S > Cc: davem@davemloft.net; edumazet@google.com; kuba@kernel.org; > pabeni@redhat.com; robh+dt@kernel.org; krzysztof.kozlowski+dt@linaro.org; > conor+dt@kernel.org; richardcochran@gmail.com; > alexandre.torgue@foss.st.com; joabreu@synopsys.com; > mcoquelin.stm32@gmail.com; alim.akhtar@samsung.com; linux- > fsd@tesla.com; pankaj.dubey@samsung.com; ravi.patel@samsung.com; > netdev@vger.kernel.org; devicetree@vger.kernel.org; linux- > kernel@vger.kernel.org; linux-samsung-soc@vger.kernel.org; linux-arm- > kernel@lists.infradead.org > Subject: Re: [PATCH v3 1/4] dt-bindings: net: Add FSD EQoS device tree bindings > > > > > + fsd-rx-clock-skew: > > > > + $ref: /schemas/types.yaml#/definitions/phandle-array > > > > + items: > > > > + - items: > > > > + - description: phandle to the syscon node > > > > + - description: offset of the control register > > > > + description: > > > > + Should be phandle/offset pair. The phandle to the syscon node. > > > > > > What clock are you skew-ing here? And why? > > > > As per customer's requirement, we need 2ns delay in fsys block both in > > TX and RX path. > > Lots of people get RGMII delays wrong. Please look back at the mailing list > where there is plenty of discussion about this. I don't want to have to repeat > myself yet again... Sorry for the delay. We took time to confirm with the board designer regarding this delay. This is not a mandatory one to have and hence we are dropping clock-skewing here. > > Andrew Thanks, Swathi