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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 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> X-Proofpoint-ORIG-GUID: s_hGaZ9xrVMdYoWab61C-OKgzkNYslkK X-Proofpoint-GUID: s_hGaZ9xrVMdYoWab61C-OKgzkNYslkK X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwODMwMDAyMCBTYWx0ZWRfX/2OCrQxBOEd5 rFQvH8zEwvfMmsY9uYAkrLO7hjqELsqZhVfB9+LIbn5JqTscu1ShkBiV0dtrdFDeIWC2pyWcyCk FxAIUslkX4sahJqZ9YVz9sTXWKpA9hwjQVMTIdqfibGS3N265vPZUCVI0oCfJZQkarPdIMw+V2x qAKsflcKAMY9csQVPU4Ln9EnumOAmB8LoD/qpHERJW6bbguii484kIYo792jmdDN2PUBUnBTDIc Irf6Pn8IrgazEyS+wcKfsU0Nr4dQwdEVGwFirj8AweXIDCqSYFEqdoLxXfa7Tqsh2Yf82voUeI0 u3NWDm3djjeckAZLTUv/jlcPLgptiAaZjzyJMAWyHDaknCH8kJ96HrgetH8fsgFY9OJ3+B9tRSF SQAwpJFF X-Authority-Analysis: v=2.4 cv=VNndn8PX c=1 sm=1 tr=0 ts=68b95089 cx=c_pps a=EVbN6Ke/fEF3bsl7X48z0g==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=yJojWOMRYYMA:10 a=VwQbUJbxAAAA:8 a=LkxnY9FmGKG3Lg6D2dsA:9 a=QEXdDO2ut3YA:10 a=a_PwQJl-kcHnX1M80qC6:22 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 suspectscore=0 spamscore=0 impostorscore=0 malwarescore=0 bulkscore=0 clxscore=1015 adultscore=0 priorityscore=1501 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2508300020 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250904_014042_510422_8AE5CC93 X-CRM114-Status: GOOD ( 12.98 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org 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 -- linux-phy mailing list linux-phy@lists.infradead.org https://lists.infradead.org/mailman/listinfo/linux-phy