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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b0431832a98sm886966366b.80.2025.09.04.01.40.37 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 04 Sep 2025 01:40:39 -0700 (PDT) Message-ID: <34d9e8eb-e0f4-47e9-a731-fe50e932fea1@oss.qualcomm.com> Date: Thu, 4 Sep 2025 10:40:36 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 3/3] arm64: dts: qcom: Add missing TCSR refclk to the DP PHYs To: Abel Vesa , Vinod Koul , Kishon Vijay Abraham I , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Dmitry Baryshkov , Konrad Dybcio , Sibi Sankar , Rajendra Nayak Cc: Johan Hovold , Taniya Das , Krzysztof Kozlowski , linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org References: <20250903-phy-qcom-edp-add-missing-refclk-v2-0-d88c1b0cdc1b@linaro.org> <20250903-phy-qcom-edp-add-missing-refclk-v2-3-d88c1b0cdc1b@linaro.org> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20250903-phy-qcom-edp-add-missing-refclk-v2-3-d88c1b0cdc1b@linaro.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwODMwMDAxOSBTYWx0ZWRfX6y0WLh7H4ofk m73INMg9103fnae/XZ8Mhgm8YuBzgsfCwjMY1QUdTz2aLRMkh/+tLcPXEuyZEFTMSu3j1hAR3lF 71tn/7HaAmXoGbyRT5mfL3KwZw2ZHb8sSaYhlaST8XeMXLUdQXPR8FLhEqLC61Gx1b6qomu6gpB nhI/T/03bD8Z7l4ifa2kB9dRIiyHmjTbCEhwPW90CXqEhYWIBVS/sUJq++c6sZBCsMXK5HsF8Ya d1GjPGOM9UEg6s/UilQVu3Wy6wQgt9B6Y5S6bFvgPweqcbE+4jz5etKHk3shaDWdmsm16bjgQYM IaxFGoUXu9+HirIt7bOtGKzZE+fCc1XX8k2n/ohjZMvVRD3EStUNVvoo89ek0KAfGOD7xrpDoGF 0yPQozh8 X-Proofpoint-GUID: CzWoh-FqclzvhyXnOZC49UeK7pONxst- X-Proofpoint-ORIG-GUID: CzWoh-FqclzvhyXnOZC49UeK7pONxst- X-Authority-Analysis: v=2.4 cv=PNkP+eqC c=1 sm=1 tr=0 ts=68b95089 cx=c_pps a=WeENfcodrlLV9YRTxbY/uA==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=yJojWOMRYYMA:10 a=VwQbUJbxAAAA:8 a=LkxnY9FmGKG3Lg6D2dsA:9 a=QEXdDO2ut3YA:10 a=kacYvNCVWA4VmyqE58fU:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1117,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-09-04_03,2025-08-28_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 bulkscore=0 priorityscore=1501 impostorscore=0 clxscore=1015 suspectscore=0 adultscore=0 phishscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2508300019 On 9/3/25 2:37 PM, Abel Vesa wrote: > The DP PHYs on X1E80100 need the refclk which is provided > by the TCSR CC. So add it to the PHYs. > > Cc: stable@vger.kernel.org # v6.9 You want to backport this to 6.9, but you also want to backport the driver patch to 6.10, "meh" I'm not sure it makes sense to backport functionally, as this would only exhibit issues if: a) the UEFI did no work to enable the refclk or: b) unused cleanup would happen but the board would not survive booting with b) in v6.9, at least it wouldn't have display - see Commit b60521eff227 ("clk: qcom: gcc-x1e80100: Unregister GCC_GPU_CFG_AHB_CLK/GCC_DISP_XO_CLK") and a) is not something we'd hit on any of the upstream-supported targets Konrad