linux-kernel - [PATCH v2 0/2] driver: reset: spacemit-p1: add driver for poweroff/reboot

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Message-ID: <20251019191519.3898095-1-aurelien@aurel32.net>
Date: Sun, 19 Oct 2025 21:14:11 +0200
From: Aurelien Jarno <aurelien@...el32.net>
To: linux-kernel@...r.kernel.org,
	Lee Jones <lee@...nel.org>,
	Sebastian Reichel <sre@...nel.org>,
	Troy Mitchell <troy.mitchell@...ux.spacemit.com>,
	Yixun Lan <dlan@...too.org>,
	Paul Walmsley <pjw@...nel.org>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Alexandre Ghiti <alex@...ti.fr>,
	linux-riscv@...ts.infradead.org (open list:RISC-V ARCHITECTURE:Keyword:riscv),
	spacemit@...ts.linux.dev (open list:RISC-V SPACEMIT SoC Support:Keyword:spacemit)
Cc: Aurelien Jarno <aurelien@...el32.net>,
	linux-pm@...r.kernel.org (open list:SYSTEM RESET/SHUTDOWN DRIVERS),
	linux-riscv@...ts.infradead.org (open list:RISC-V SPACEMIT SoC Support),
	spacemit@...ts.linux.dev (open list:RISC-V SPACEMIT SoC Support)
Subject: [PATCH v2 0/2] driver: reset: spacemit-p1: add driver for poweroff/reboot

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 this patch that adds
atomic transfer support to the SpacemiT I2C controller driver:
https://lore.kernel.org/spacemit/20251009-k1-i2c-atomic-v4-1-a89367870286@linux.spacemit.com/

Changes between version 1 and version 2:
- Rebase onto v6.18-rc1    
- Use dev_err_probe() to simplify the code 
- Fix indentation of patch 1
- Collect Acked-by and Tested-by

Here is version 1 of this series:
  https://lore.kernel.org/spacemit/20250927220824.1267318-1-aurelien@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