linux-kernel - [PATCH 0/8] arm64: dts: qcom: x1e: mark l12b and l15b always-on

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250227081357.25971-1-johan+linaro@kernel.org>
Date: Thu, 27 Feb 2025 09:13:49 +0100
From: Johan Hovold <johan+linaro@...nel.org>
To: Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konradybcio@...nel.org>
Cc: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Johan Hovold <johan+linaro@...nel.org>
Subject: [PATCH 0/8] arm64: dts: qcom: x1e: mark l12b and l15b always-on

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 there are likely votes from other processors for these rpmh
regulators (at least for l15b) but the OS should not rely on that in any
case.

Included is also a patch that adds the missing HID supplies for the
T14s. It was a corresponding change for the CRD that made me look into
this to make sure these supplies were not disabled during suspend or on
probe deferrals.

Johan


Johan Hovold (8):
  arm64: dts: qcom: x1e80100-crd: mark l12b and l15b always-on
  arm64: dts: qcom: x1e78100-t14s: mark l12b and l15b always-on
  arm64: dts: qcom: x1e001de-devkit: mark l12b and l15b always-on
  arm64: dts: qcom: x1e80100-dell-xps13-9345: mark l12b and l15b
    always-on
  arm64: dts: qcom: x1e80100-hp-x14: mark l12b and l15b always-on
  arm64: dts: qcom: x1e80100-yoga-slim7x: mark l12b and l15b always-on
  arm64: dts: qcom: x1e80100-qcp: mark l12b and l15b always-on
  arm64: dts: qcom: x1e78100-t14s: fix missing HID supplies

 arch/arm64/boot/dts/qcom/x1e001de-devkit.dts  |  2 +
 .../qcom/x1e78100-lenovo-thinkpad-t14s.dts    | 45 +++++++++++++++++++
 arch/arm64/boot/dts/qcom/x1e80100-crd.dts     |  2 +
 .../dts/qcom/x1e80100-dell-xps13-9345.dts     |  2 +
 .../dts/qcom/x1e80100-hp-omnibook-x14.dts     |  2 +
 .../dts/qcom/x1e80100-lenovo-yoga-slim7x.dts  |  3 +-
 arch/arm64/boot/dts/qcom/x1e80100-qcp.dts     |  2 +
 7 files changed, 57 insertions(+), 1 deletion(-)

-- 
2.45.3