From: Aurelien Jarno <aurelien@aurel32.net>
To: linux-kernel@vger.kernel.org, Lee Jones <lee@kernel.org>,
Sebastian Reichel <sre@kernel.org>, Yixun Lan <dlan@gentoo.org>,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Alexandre Ghiti <alex@ghiti.fr>
Cc: Aurelien Jarno <aurelien@aurel32.net>,
linux-pm@vger.kernel.org (open list:SYSTEM RESET/SHUTDOWN
DRIVERS),
linux-riscv@lists.infradead.org (open list:RISC-V SPACEMIT SoC
Support),
spacemit@lists.linux.dev (open list:RISC-V SPACEMIT SoC Support)
Subject: driver: reset: spacemit-p1: add driver for poweroff/reboot
Date: Sun, 28 Sep 2025 00:07:39 +0200 [thread overview]
Message-ID: <20250927220824.1267318-1-aurelien@aurel32.net> (raw)
This adds poweroff/reboot support for the SpacemiT P1 PMIC chip, which is
commonly paired with the SpacemiT K1 SoC.
Note: For reliable operation, this driver depends on a separate patch series
that adds atomic transfer support to the SpacemiT I2C controller driver:
https://lore.kernel.org/spacemit/48B175EBF0F1A347+aNXwqlO1mD-7BGtE@kernel.org/T/#t
The two fixes mentioned there are also required:
https://lore.kernel.org/spacemit/aNbDkn9AC4FFx-Zc@aurel32.net/
Aurelien Jarno (2):
driver: reset: spacemit-p1: add driver for poweroff/reboot
mfd: simple-mfd-i2c: add a reboot cell for the SpacemiT P1 chip
drivers/mfd/simple-mfd-i2c.c | 1 +
drivers/power/reset/Kconfig | 9 +++
drivers/power/reset/Makefile | 1 +
drivers/power/reset/spacemit-p1-reboot.c | 88 ++++++++++++++++++++++++
4 files changed, 99 insertions(+)
create mode 100644 drivers/power/reset/spacemit-p1-reboot.c
--
2.47.2
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next reply other threads:[~2025-09-27 22:09 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-27 22:07 Aurelien Jarno [this message]
2025-09-27 22:07 ` [PATCH 1/2] driver: reset: spacemit-p1: add driver for poweroff/reboot Aurelien Jarno
2025-09-28 0:02 ` Yixun Lan
2025-09-28 18:01 ` Aurelien Jarno
2025-09-28 2:10 ` Troy Mitchell
2025-09-29 6:35 ` Troy Mitchell
2025-09-27 22:07 ` [PATCH 2/2] mfd: simple-mfd-i2c: add a reboot cell for the SpacemiT P1 chip Aurelien Jarno
2025-09-28 2:08 ` Troy Mitchell
2025-09-28 21:01 ` Aurelien Jarno
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