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[107.198.5.8]) by smtp.gmail.com with ESMTPSA id 00721157ae682-7cc991c98d9sm60851307b3.10.2026.05.20.18.09.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 May 2026 18:09:59 -0700 (PDT) From: Michael Scott To: linux-arm-msm@vger.kernel.org Cc: vkoul@kernel.org, neil.armstrong@linaro.org, dmitry.baryshkov@oss.qualcomm.com, wesley.cheng@oss.qualcomm.com, abelvesa@kernel.org, faisal.hassan@oss.qualcomm.com, linux-phy@lists.infradead.org, andersson@kernel.org, konradybcio@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, devicetree@vger.kernel.org, val@packett.cool, bryan.odonoghue@linaro.org, laurentiu.tudor1@dell.com, alex.vinarskis@gmail.com, linux-kernel@vger.kernel.org, Michael Scott , stable@vger.kernel.org Subject: [PATCH v2 3/4] arm64: dts: qcom: x1-dell-thena: mark l12b and l15b always-on Date: Wed, 20 May 2026 18:09:34 -0700 Message-ID: <20260521010935.1333494-4-mike.scott@oss.qualcomm.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260521010935.1333494-1-mike.scott@oss.qualcomm.com> References: <20260521010935.1333494-1-mike.scott@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-GUID: nXRnRnKixezMUrpXakvbVLYTKI8_yfa9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTIxMDAwOCBTYWx0ZWRfX4EK2h18VElfD 4Mq6TCGWnBG5xf83ica5CxJLSGzvj8LBeY9YrOyKTbd/NWeZl2TdT98qB0PauS9wht6sDUxzcgh Ar8DWQ6HKx4Yj+OaRpHfIsfeRmdbX8BU0lsySoA4J7KqqYmYjS6nKeFnWn9gQOVwV55LrMLvVxh v/SFfRzQZxzoJ+S2Yjv8J6eiOW8GNk7S3H/2nOSj4UNl/jkQj2trpNWmgQnyzRMPtdQY8FJ1b2Q R5ds634G31iyBpXXyT/jWdANd+gdFy/qvYdzzVr+0SHYp4QevjO6zlakApRpq1M/EoIVCiXsd+Q XwzxaJCY3/IW0BGo0t+3zL+BApoHEn0lmk9FYwMuBCXu2ly/JuwrleBCUN1ElgrkaKtO1l7f+81 jKzw5WNgwN7iD1YFzYhKyN/6lY7y5p0dcGCFya/yCvw1B3IedRokN8J52XeI0jxnxuQlLyJTzN8 jQ71B3Ke29vlMHn0D+A== X-Authority-Analysis: v=2.4 cv=TO11jVla c=1 sm=1 tr=0 ts=6a0e5b68 cx=c_pps a=72HoHk1woDtn7btP4rdmlg==:117 a=cdagev08qavQYXHyx3V8vg==:17 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=CbK1FIr4-MOfYfEwsVEA:9 a=kA6IBgd4cpdPkAWqgNAz:22 X-Proofpoint-ORIG-GUID: nXRnRnKixezMUrpXakvbVLYTKI8_yfa9 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-20_03,2026-05-18_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 suspectscore=0 spamscore=0 adultscore=0 phishscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605130000 definitions=main-2605210008 The l12b and l15b supplies are used by components that are not (fully) described (and some never will be) and must never be disabled. Mark the regulators as always-on to prevent them from being disabled, for example, when consumers probe defer or suspend. Note that these supplies currently have no consumers described in mainline for dell-thena beyond the audio codec (vdd-buck/vdd-rxtx/ vdd-io on wcd938x), which can release them when the codec goes idle. The board-level gpio-fixed regulators that feed the Type-C retimer's VDDIO and other rails are not described with a vin-supply link, so the kernel cannot keep their parent LDOs alive on its own. This mirrors the same change Johan Hovold applied to every other X1E80100 board in a March 2025 series; commit 63169c07d740 ("arm64: dts: qcom: x1e80100-dell-xps13-9345: mark l12b and l15b always-on") is representative. The dell-thena board file was introduced four months later and did not inherit that change; this patch closes the gap. Fixes: e7733b42111c ("arm64: dts: qcom: Add support for Dell Inspiron 7441 / Latitude 7455") Cc: stable@vger.kernel.org Signed-off-by: Michael Scott --- arch/arm64/boot/dts/qcom/x1-dell-thena.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/x1-dell-thena.dtsi b/arch/arm64/boot/dts/qcom/x1-dell-thena.dtsi index db291730130c..d6de4da02dcd 100644 --- a/arch/arm64/boot/dts/qcom/x1-dell-thena.dtsi +++ b/arch/arm64/boot/dts/qcom/x1-dell-thena.dtsi @@ -589,6 +589,7 @@ vreg_l12b_1p2: ldo12 { regulator-min-microvolt = <1200000>; regulator-max-microvolt = <1200000>; regulator-initial-mode = ; + regulator-always-on; }; vreg_l13b_3p0: ldo13 { @@ -610,6 +611,7 @@ vreg_l15b_1p8: ldo15 { regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; regulator-initial-mode = ; + regulator-always-on; }; }; -- 2.53.0