wireguard-linux/drivers/power/reset, branch stable

driver: reset: th1520-aon: add driver for poweroff/reboot via AON FW

2025-09-19T10:55:20Z

This driver implements poweroff/reboot support for T-Head TH1520 SoCs running the AON firmware by sending a message to the AON firmware's WDG part. This is a auxiliary device driver, and expects the AON channel to be passed via the platform_data of the auxiliary device. Signed-off-by: Icenowy Zheng Acked-by: Sebastian Reichel Signed-off-by: Ulf Hansson

Merge tag 'for-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

2025-08-01T04:39:01Z

Pull power supply and reset updates from Sebastian Reichel: "Power-supply core: - battery-info: replace any DT specific bits with fwnode usage - replace any device-tree code with generic fwnode based handling Power-supply drivers: - ug3105_battery: use battery-info API - qcom_battmgr: report capacity - qcom_battmgr: support LiPo battery reporting - add missing missing power-supply ref to a bunch of DT bindings - update drivers regarding pm_runtime_autosuspend() usage - misc minor fixes and cleanups Reset drivers: - misc minor cleanups" * tag 'for-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (32 commits) power: supply: core: fix static checker warning power: supply: twl4030_charger: Remove redundant pm_runtime_mark_last_busy() calls power: supply: bq24190: Remove redundant pm_runtime_mark_last_busy() calls MAINTAINERS: rectify file entry in QUALCOMM SMB CHARGER DRIVER power: supply: max1720x correct capacity computation MAINTAINERS: add myself as smbx charger driver maintainer power: supply: pmi8998_charger: rename to qcom_smbx power: supply: qcom_pmi8998_charger: fix wakeirq power: supply: max14577: Handle NULL pdata when CONFIG_OF is not set power: return the correct error code power: reset: POWER_RESET_TORADEX_EC should depend on ARCH_MXC power: supply: cpcap-charger: Fix null check for power_supply_get_by_name power: supply: bq25980_charger: Constify reg_default array power: supply: bq256xx_charger: Constify reg_default array power: reset: at91-sama5d2_shdwc: Refactor wake-up source logging to use dev_info power: reset: qcom-pon: Rename variables to use generic naming power: supply: qcom_battmgr: Add lithium-polymer entry power: supply: qcom_battmgr: Report battery capacity power: supply: bq24190: Free battery_info power: supply: ug3105_battery: Switch to power_supply_batinfo_ocv2cap() ...

power: reset: macsmc-reboot: Add driver for rebooting via Apple SMC

2025-07-24T08:47:33Z

This driver implements the reboot/shutdown support exposed by the SMC on Apple Silicon machines, such as Apple M1 Macs. Signed-off-by: Hector Martin Reviewed-by: Alyssa Rosenzweig Reviewed-by: Neal Gompa Reviewed-by: Sebastian Reichel Signed-off-by: Sven Peter Link: https://lore.kernel.org/r/20250610-smc-6-15-v7-7-556cafd771d3@kernel.org Signed-off-by: Lee Jones

power: reset: POWER_RESET_TORADEX_EC should depend on ARCH_MXC

2025-06-22T17:24:55Z

The Toradex Embedded Controller is currently only present on Toradex SMARC iMX8MP and iMX95 SoMs. Hence add a dependency on ARCH_MXC, to prevent asking the user about this driver when configuring a kernel without NXP i.MX SoC family support. Fixes: 18672fe12367ed44 ("power: reset: add Toradex Embedded Controller") Signed-off-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/1ef0beb1e09bf914650f9f9885a33af06772540d.1746536287.git.geert+renesas@glider.be Signed-off-by: Sebastian Reichel

power: reset: at91-sama5d2_shdwc: Refactor wake-up source logging to use dev_info

2025-06-22T01:04:51Z

Use dev_info() instead of pr_info() for more consistent logging in the driver. [root@sam9x75eb ~]$ dmesg | grep power [ 1.678542] at91-shdwc fffffe10.poweroff: Wake-Up source: WKUP pin Signed-off-by: Mihai Sain Link: https://lore.kernel.org/r/20250610124545.175492-3-mihai.sain@microchip.com Signed-off-by: Sebastian Reichel

power: reset: qcom-pon: Rename variables to use generic naming

2025-06-22T01:00:26Z

The qcom-pon driver was originally implemented for the PM8916 PMIC, and as a result, several internal variable names still refer to 'pm8916'. However, the driver has since been extended to support other PMICs as well. This patch renames those variables to use more generic and consistent names, improving clarity and reducing confusion for non-PM8916 devices. Signed-off-by: Taeyoung Kwon Reviewed-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20250521131116.2664-1-Taeyoung.Kwon@telit.com Signed-off-by: Sebastian Reichel

power: reset: syscon-reboot: add gs101-specific reset

2025-04-30T22:41:31Z

Linux supports a couple different reset modes, but this driver here doesn't distinguish between them and issues the same syscon register write irrespective of the reset mode requested by the kernel. Since DTs should not encode register writes (see e.g. [1]), update this driver to support different reset modes based on DT compatible match. At the same time, add support for Google GS101, which does support cold, hard, warm, and soft. As an example why this is useful, other than properly supporting the Linux reboot= kernel command line option or sysfs entry, this change allows gs101-platforms to default to a more secure cold-reset, but also to warm-reset in case RAM contents needs to be retained across the reset. Link: https://lore.kernel.org/all/20250227132644.GA1924628-robh@kernel.org/ [1] Signed-off-by: André Draszik Link: https://lore.kernel.org/r/20250401-syscon-reboot-reset-mode-v5-2-5b9357442363@linaro.org Signed-off-by: Sebastian Reichel

power: reset: add Toradex Embedded Controller

2025-04-28T23:13:10Z

Toradex SMARC iMX8MP and SMARC iMX95 SoM modules use a small Embedded Controller (EC) to manage power and reset functions and related SMARC signals. This driver implements power-off and reboot handlers, communicating with the EC via I2C to issue the appropriate power management commands. During probe, the driver logs the Embedded Controller ID (unique ID for each SMARC board supported) in hex format along with the firmware version. Signed-off-by: Emanuele Ghidoli Signed-off-by: Francesco Dolcini Link: https://lore.kernel.org/r/20250414171455.155155-3-francesco@dolcini.it Signed-off-by: Sebastian Reichel

power: reset: reboot-mode: better compatibility with DT (replace ' ,/')

2025-04-27T22:05:31Z

This driver's purpose is to parse boot modes described in DT, via key (node name) / value pairs, and to match them to a reboot mode requested by the kernel. Unfortunately, DT node names can not contain certain characters, like space ' ' or comma ',' or slash '/', while the requested reboot mode may. This is a problem because it makes it impossible to match reboot modes containing any of those characters. For example, this makes it impossible to communicate DM verity errors to the boot loader - DM verity errors trigger a reboot with mode "dm-verity device corrupted" in drivers/md/dm-verity-target.c and devices typically have to take action in that case [1]. Changing this string itself is not feasible, see e.g. discussion in [2], but would also just cover this one case. Another example is Android, which may use comma in the reboot mode string, e.g. as "shutdown,thermal" in [3]. The kernel also shouldn't prescribe what characters are allowed inside the boot mode string for a user to set. It hasn't done this so far, and introducing such a restriction would be an interface break and arbitrarily enforce a random new policy. Therefore, update this driver to do another round of string matching, after replacing the common characters mentioned above with dash '-', if a match hasn't been found without doing said replacement. This now allows us to have DT entries of e.g.: mode-dm-verity-device-corrupted = <...> and so on. Link: https://cs.android.com/android/kernel/superproject/+/android14-gs-pixel-6.1:private/google-modules/power/reset/exynos-gs101-reboot.c;l=144 [1] Link: https://lore.kernel.org/all/CAAFS_9FuSb7PZwQ2itUh_H7ZdhvAEiiX7fhxJ4kmmv9JCaHmkA@mail.gmail.com/ [2] Link: https://cs.android.com/android/platform/superproject/main/+/main:system/core/init/reboot_utils.cpp;drc=79ad1e2e9bf1628c141c8cd2fbb4f3df61a6ba75;l=122 [3] Signed-off-by: André Draszik Link: https://lore.kernel.org/r/20250307-reboot-mode-chars-v1-1-d83ff95da524@linaro.org Signed-off-by: Sebastian Reichel

power: reset: at91-reset: Optimize at91_reset()

2025-04-27T21:59:08Z

This patch adds a small optimization to the low-level at91_reset() function, which includes: - Removes the extra branch, since the following store operations already have proper condition checks. - Removes the definition of the clobber register r4, since it is no longer used in the code. Fixes: fcd0532fac2a ("power: reset: at91-reset: make at91sam9g45_restart() generic") Signed-off-by: Alexander Shiyan Reviewed-by: Alexandre Belloni Link: https://lore.kernel.org/r/20250307053809.20245-1-eagle.alexander923@gmail.com Signed-off-by: Sebastian Reichel