Bug#1142672: linux: enable CONFIG_REGULATOR_QCOM_REFGEN on arm64

From	Christopher Obbard <obbardc@debian.org>
Newsgroups	linux.debian.bugs.dist, linux.debian.ports.arm, linux.debian.kernel
Subject	Bug#1142672: linux: enable CONFIG_REGULATOR_QCOM_REFGEN on arm64
Date	2026-07-24 07:10 +0200
Message-ID	<Nkgkx-6CuP-1@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

Cross-posted to 3 groups.

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Source: linux
Version: 7.1.4-1
Severity: normal
X-Debbugs-Cc: debian-arm@lists.debian.org, obbardc@debian.org, chris.obbard@oss.qualcomm.com
User: debian-arm@lists.debian.org
Usertags: arm64

Dear Maintainer,

Please enable CONFIG_REGULATOR_QCOM_REFGEN=m on arm64.

This driver provides the reference generation regulator used by Qualcomm
platforms. It is required for hardware using the Qualcomm REFGEN regulator
driver to function with the Debian arm64 kernel.

The proposed configuration change is:

```
CONFIG_REGULATOR_QCOM_REFGEN=m
```

This is needed to enable the DSI output on (at least) RB3gen2, which is
connected to a DSI-to-HDMI bridge. Enabling this driver enables the HDMI
output on the RB3gen2 device.

I have tested this on the Qualcomm RB3gen2, where it is required for the
HDMI output.

I can provide a Salsa merge request containing the configuration change if
helpful.

Please enable this on all supported branches, including trixie-backports
and above.

-- System Information:
Debian Release: forky/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: arm64

Kernel: Linux 7.1.3+deb14-amd64 (SMP w/16 CPU threads; PREEMPT)
Kernel taint flags: TAINT_WARN
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

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Bug#1142672: linux: enable CONFIG_REGULATOR_QCOM_REFGEN on arm64 Christopher Obbard <obbardc@debian.org> - 2026-07-24 07:10 +0200
  Bug#1142672: linux: enable CONFIG_REGULATOR_QCOM_REFGEN on arm64 Christopher Obbard <obbardc@debian.org> - 2026-07-24 07:20 +0200
  Bug#1142672: marked as done (linux: enable CONFIG_REGULATOR_QCOM_REFGEN  on arm64) "Debian Bug Tracking System" <owner@bugs.debian.org> - 2026-07-28 07:40 +0200

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