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Fri, 03 Jul 2026 03:13:21 -0700 (PDT) X-Received: by 2002:a05:6214:cc8:b0:8ed:a980:6b27 with SMTP id 6a1803df08f44-8f3c854777cmr86120726d6.8.1783073600643; Fri, 03 Jul 2026 03:13:20 -0700 (PDT) Received: from [192.168.120.193] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-698ad119406sm2158642a12.21.2026.07.03.03.13.14 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 03 Jul 2026 03:13:19 -0700 (PDT) Message-ID: <827c4b64-1881-4630-bb08-f9e2d97cd32e@oss.qualcomm.com> Date: Fri, 3 Jul 2026 12:13:13 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH net-next v11 1/7] dt-bindings: phy: document the serdes PHY on sa8255p To: Geert Uytterhoeven , Bartosz Golaszewski Cc: Vinod Koul , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Maxime Coquelin , Alexandre Torgue , Giuseppe Cavallaro , Chen-Yu Tsai , Jernej Skrabec , Neil Armstrong , Kevin Hilman , Jerome Brunet , Shawn Guo , Fabio Estevam , Jan Petrous , s32@nxp.com, Mohd Ayaan Anwar , Romain Gantois , Magnus Damm , Maxime Ripard , Christophe Roullier , Radu Rendec , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, Drew Fustini , linux-sunxi@lists.linux.dev, linux-amlogic@lists.infradead.org, linux-mips@vger.kernel.org, imx@lists.linux.dev, linux-renesas-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, sophgo@lists.linux.dev, linux-riscv@lists.infradead.org, Bartosz Golaszewski , Bartosz Golaszewski References: <20260629-qcom-sa8255p-emac-v11-0-1b7fb95b51f9@oss.qualcomm.com> <20260629-qcom-sa8255p-emac-v11-1-1b7fb95b51f9@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: X-Proofpoint-GUID: Y9ERQzmt2E7SdpFqUGvqj5PKfkZLlOD4 X-Proofpoint-Spam-Info: AW1haW4tMjYwNzAzMDA5OCBTYWx0ZWRfX0EP+Gs+yyQrL t84A4MFtLaSLqgNy2GyuwosRuX7zlavkE12mRkHtLCnFZH/pks/4rA0ubAcpNFpbN/XPiuWBeqJ WchCGX4/7GvfPXJ+HGEAqzEvkPiXIro= X-Authority-Analysis: v=2.4 cv=a6QAM0SF c=1 sm=1 tr=0 ts=6a478b42 cx=c_pps a=oc9J++0uMp73DTRD5QyR2A==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=Um2Pa8k9VHT-vaBCBUpS:22 a=VwQbUJbxAAAA:8 a=lwt6xitBv4dyHUtHhEkA:9 a=QEXdDO2ut3YA:10 a=iYH6xdkBrDN1Jqds4HTS:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzAzMDA5OCBTYWx0ZWRfX6O+khz0izWUe RGk9YYixiDhetZjjyt7c6dN6uFLG7wsYQCM+9RiCLiT2RaST8OYnaJHkAh9nbNn8rdJpSo90/04 6H5sBrp5EBDPILJPCWe+Vdx9lGoRH7Mnizn3YW89UzfN9pSjXGpmYvT5+2QIcigzBaixKIVLO5B k/8C6rI4byhrV3Cjqx3VH8B17Ny9/1b2J3oe3sWqxpOEHUfQUNhQuzAOx/HW/P31eLrfYGW8sCW y1lK1TV0cn60KR+kcZlfFqSFNmEFpBIkYssVRVoAQxU24UYKMRwkk0n3o2OCuEHDKHmNuqXlIx/ KBORr4kQPoBoGDRtOFJu0shbWRvA54ScT19wyMW8pB0h5NJKwuVkiI57xa8XNCnFPFRM0Ln6vBB Bj3kVE67cdAK8Yy7Bnux5LvPosDtZLhj5M1rmdzeQhH7rev70JYVHNGdULIBXWcOs9X8St6oMAp qnG+cAOIT9cVRDhrUBA== X-Proofpoint-ORIG-GUID: Y9ERQzmt2E7SdpFqUGvqj5PKfkZLlOD4 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-07-03_02,2026-06-26_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1011 suspectscore=0 malwarescore=0 lowpriorityscore=0 adultscore=0 bulkscore=0 impostorscore=0 phishscore=0 spamscore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607030098 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260703_031322_535069_AE4753F9 X-CRM114-Status: GOOD ( 17.80 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org On 7/2/26 11:16 AM, Geert Uytterhoeven wrote: > Hi Bartosz, > > On Thu, 2 Jul 2026 at 11:12, Bartosz Golaszewski wrote: >> On Tue, 30 Jun 2026 12:23:16 +0200, Vinod Koul said: >>> On 29-06-26, 16:51, Geert Uytterhoeven wrote: >>>>> Russell King asked me to put the PHY logic for SCMI pm domains into the PHY >>>>> driver instead of the MAC driver where it was previously. Instead of cramming >>>>> both HLOS and firmware handling into the same driver, I figured it makes more >>>>> sense to have a dedicated, cleaner driver as the two share very little code (if >>>>> any). >>>> >>>> I think you are mixing up DT bindings and driver implementation? >>> >>> Should the bindings change if we have different driver and firmware >>> implementations? Isn't binding supposed to be agnostic of >>> implementations..? >> >> I've thought about it some more and I believe this question is philosophical in >> nature. >> >> sa8775p and sa8255p are *the same* hardware. I can flash different firmware on >> the same Lemans Ride board and it becomes one or the other. Yet they are not >> described by the same DTS and the bindings differ as well. I don't see why we >> wouldn't allow the same approach for the this PHY. >> >> We treat it as different HW variant when it's managed by firmware - just like >> we do with the rest of the SoC. > > DT describes hardware, not software policy. DT describes hardware, to the extent that it's accessible by the OS In this case, lemans-bare-metal and lemans-auto are essentially 2 separate platforms because the way we can interface with the hardware is so vastly different Konrad _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic