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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-658b469e6b2sm1438238a12.26.2026.01.28.04.41.37 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 28 Jan 2026 04:41:41 -0800 (PST) Message-ID: <795c4862-de48-44b4-9af9-6d9185a3c3ea@oss.qualcomm.com> Date: Wed, 28 Jan 2026 13:41:36 +0100 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 v4 2/2] arm64: dts: qcom: lemans: Add eDP ref clock for eDP PHYs To: Ritesh Kumar , robin.clark@oss.qualcomm.com, lumag@kernel.org, abhinav.kumar@linux.dev, sean@poorly.run, marijn.suijten@somainline.org, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, quic_mahap@quicinc.com, andersson@kernel.org, konradybcio@kernel.org, mani@kernel.org, James.Bottomley@HansenPartnership.com, martin.petersen@oracle.com, vkoul@kernel.org, kishon@kernel.org, cros-qcom-dts-watchers@chromium.org Cc: linux-phy@lists.infradead.org, linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, quic_vproddut@quicinc.com References: <20260128114853.2543416-1-quic_riteshk@quicinc.com> <20260128114853.2543416-3-quic_riteshk@quicinc.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260128114853.2543416-3-quic_riteshk@quicinc.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: P_K3SQAY-gPdxLR9qG4CWm8Usr4jNuYx X-Proofpoint-ORIG-GUID: P_K3SQAY-gPdxLR9qG4CWm8Usr4jNuYx X-Authority-Analysis: v=2.4 cv=N58k1m9B c=1 sm=1 tr=0 ts=697a0407 cx=c_pps a=wEM5vcRIz55oU/E2lInRtA==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=COk6AnOGAAAA:8 a=EUspDBNiAAAA:8 a=3Q2R1SHny_ty92h1eiYA:9 a=QEXdDO2ut3YA:10 a=OIgjcC2v60KrkQgK7BGD:22 a=TjNXssC_j7lpFel5tvFf:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTI4MDEwNCBTYWx0ZWRfX4KGEXx41RyoS 1rjuSx8WXWIEvw3eFkXvWXp8OsMbC7rl0Ns707oddMOPELqmGgW4XKVoBnBUZZSFrduysVax3Dg fSNEv040OAFqj9plibwyJItgQnvUpcix9Mq0bywWbPGS6nVhX4MM859Fm+92/DW7m1LbBMbk5kb tWZBmvCgxy0o4fLNm0Ffrjv47tojtqSXqrw9v6KV0+42HTtFxW8+eZYWSlTxiYXB4aBAbnwH1Lo 1tjBFOsdRUem47ikZSvNa52D5gcBlpHnNXFtk4Oms9MLTt68QlpxeRAqZlqd/L4M3FKoXYFT+iW 16HM9LS3OYMWAC0YC76J2PMKQnfxnoflxWpnG9xTvfMMpLRshcs7jZoZowr48VMGEhhhzzomp1O q7fzLtYD/eCiU6Ls1kQDWeyIii94++X6hOL49X5ag6s3SVqtuRhAphsbaavUJm2jX4Gd+saK6nb WBBvNVH8lPuEGCHGpdQ== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-01-28_02,2026-01-28_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 lowpriorityscore=0 priorityscore=1501 malwarescore=0 bulkscore=0 adultscore=0 clxscore=1015 impostorscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2601280104 On 1/28/26 12:48 PM, Ritesh Kumar wrote: > The eDP PHY nodes on lemans were missing the reference clock voting. > This initially went unnoticed because the clock was implicitly enabled > by the UFS PHY driver, and the eDP PHY happened to rely on that. > > After commit 77d2fa54a945 ("scsi: ufs: qcom : Refactor phy_power_on/off > calls"), the UFS driver no longer keeps the reference clock enabled. > As a result, the eDP PHY fails to power on. > > To fix this, add eDP reference clock for eDP PHYs on lemans chipset > ensuring reference clock is enabled. > > Fixes: e1e3e5673f8d7 ("arm64: dts: qcom: sa8775p: add DisplayPort device nodes") > Signed-off-by: Ritesh Kumar > --- Reviewed-by: Konrad Dybcio Konrad