linux-kernel - [PATCH 0/3] gs101 s2mpg10 initial enablement & reboot update (DT)

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Message-Id: <20250627-gs101-reboot3-v1-0-c3ae49657b1f@linaro.org>
Date: Fri, 27 Jun 2025 14:29:29 +0100
From: André Draszik <andre.draszik@...aro.org>
To: Catalin Marinas <catalin.marinas@....com>, 
 Will Deacon <will@...nel.org>, Peter Griffin <peter.griffin@...aro.org>, 
 Tudor Ambarus <tudor.ambarus@...aro.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Alim Akhtar <alim.akhtar@...sung.com>
Cc: Will McVicker <willmcvicker@...gle.com>, kernel-team@...roid.com, 
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 linux-samsung-soc@...r.kernel.org, devicetree@...r.kernel.org, 
 André Draszik <andre.draszik@...aro.org>
Subject: [PATCH 0/3] gs101 s2mpg10 initial enablement & reboot update (DT)

This series goes on top of krzk/for-next commit 62cd64f5b915 ("Merge
branch 'next/dt64' into for-next") [1] for the reason outlined at the
bottom of this cover letter.

This series enables the s2mpg10 PMIC, updates the DT for Google Pixel 6
and 6 Pro (oriole / raven) boards accordingly, and switches these
boards to cold-reboot (instead of warm).

A cold-reboot is a bit more secure than warm-reboot as e.g. RAM
contents will be wiped, and the bootloader will not assume the HLOS has
crashed (as it does with warm-reboot) and will therefore be ready a bit
faster.

For cold-reboot to fully work, the reboot mode (i.e. what to do after
reboot) needs to have been stored in NVMEM for the bootloader.
Therefore this series runtime-depends on the Maxim MAX77759 nvmem
enablement from [2], which was applied to krzk/linux.git (for-next).

Link: https://git.kernel.org/krzk/c/62cd64f5b915 [1]
Link: https://lore.kernel.org/all/20250524-b4-max77759-mfd-dts-v2-0-b479542eb97d@linaro.org/ [2]

Signed-off-by: André Draszik <andre.draszik@...aro.org>
---
André Draszik (3):
      arm64: defconfig: enable Samsung PMIC over ACPM
      arm64: dts: exynos: gs101-pixel-common: add main PMIC node
      arm64: dts: exynos: gs101: switch to gs101 specific reboot

 .../boot/dts/exynos/google/gs101-pixel-common.dtsi   | 20 ++++++++++++++++++++
 arch/arm64/boot/dts/exynos/google/gs101.dtsi         |  5 +----
 arch/arm64/configs/defconfig                         |  1 +
 3 files changed, 22 insertions(+), 4 deletions(-)
---
base-commit: 62cd64f5b915617ea7978205b336ff21f0801c95
change-id: 20250627-gs101-reboot3-83f8c247a0bb

Best regards,
-- 
André Draszik <andre.draszik@...aro.org>