kernel/drivers/regulator/pca9450-regulator.c, branch linux-rolling-stable

regulator: pca9450: Correct probed name for PCA9452

2026-03-19T15:14:55Z

[ Upstream commit 21b3fb7dc19caa488d285e3c47999f7f1a179334 ] An incorrect device name was logged for PCA9452 because the dev_info() ternary omitted PCA9452 and fell through to "pca9450bc". Introduce a type_name and set it per device type so the probed message matches the actual PMIC. While here, make the PCA9451A case explicit. No functional changes. Fixes: 017b76fb8e5b6 ("regulator: pca9450: Add PMIC pca9452 support") Signed-off-by: Peng Fan Link: https://patch.msgid.link/20260310-pca9450-irq-v1-2-36adf52c2c55@nxp.com Signed-off-by: Mark Brown Signed-off-by: Sasha Levin

regulator: pca9450: Correct interrupt type

2026-03-19T15:14:55Z

[ Upstream commit 5d0efaf47ee90ac60efae790acee3a3ed99ebf80 ] Kernel warning on i.MX8MP-EVK when doing module test: irq: type mismatch, failed to map hwirq-3 for gpio@30200000! Per PCA945[X] specification: The IRQ_B pin is pulled low when any unmasked interrupt bit status is changed and it is released high once application processor read INT1 register. So the interrupt should be configured as IRQF_TRIGGER_LOW, not IRQF_TRIGGER_FALLING. Fixes: 0935ff5f1f0a4 ("regulator: pca9450: add pca9450 pmic driver") Signed-off-by: Peng Fan Link: https://patch.msgid.link/20260310-pca9450-irq-v1-1-36adf52c2c55@nxp.com Signed-off-by: Mark Brown Signed-off-by: Sasha Levin

regulator: Use container_of_const() when all types are

2025-11-26T21:21:57Z

Merge series from Krzysztof Kozlowski : Use container_of_const(), which is preferred over container_of(), when the argument 'ptr' and returned pointer are already const, for better code safety and readability. Some drivers already have const everywhere, so container_of_const can be directly used. In few other drivers, the final pointer can be constified that way.

regulator: pca9450: Constify pointers to 'regulator_desc' wrap struct

2025-11-26T18:44:31Z

Pointer to 'struct regulator_desc' is a pointer to const and the wrapping structure (container) is not being modified, thus entire syntax can be replaced to preferred and safer container_of_const(). Signed-off-by: Krzysztof Kozlowski Link: https://patch.msgid.link/20251126-container-of-const-regulator-v1-7-eeec378144d4@oss.qualcomm.com Signed-off-by: Mark Brown

regulator: pca9450: Fix error code in probe()

2025-11-21T14:39:49Z

Return "PTR_ERR(pca9450->sd_vsel_gpio)" instead of "ret". The "ret" variable is success at this point. Fixes: 3ce6f4f943dd ("regulator: pca9450: Fix control register for LDO5") Signed-off-by: Dan Carpenter Link: https://patch.msgid.link/aSBqnPoBrsNB1Ale@stanley.mountain Signed-off-by: Mark Brown

regulator: pca9450: Add support for setting debounce settings

2025-11-18T18:55:22Z

Make the different debounce timers configurable from the devicetree. Depending on the board design, these have to be set different than the default register values. Signed-off-by: Martijn de Gouw Link: https://patch.msgid.link/20251117202215.1936139-2-martijn.de.gouw@prodrive-technologies.com Signed-off-by: Mark Brown

regulator: pca9450: link regulator inputs to supply groups

2025-10-27T13:55:44Z

Add supply_name entries for all PCA9450 regulators to describe their respective input pin groups (INB13, INB26, INB45, INL1). This links each buck and LDO to the upstream supply that powers its input group. On some systems, power faults such as undervoltage are detected before the PMIC itself. Defining supply relationships allows the regulator framework to propagate such events properly through the dependency chain. Signed-off-by: Oleksij Rempel Link: https://patch.msgid.link/20251027124415.989301-3-o.rempel@pengutronix.de Signed-off-by: Mark Brown

regulator: pca9450: Use devm_register_sys_off_handler

2025-08-18T12:09:51Z

With module test, there is error dump: ------------[ cut here ]------------ notifier callback pca9450_i2c_restart_handler already registered WARNING: kernel/notifier.c:23 at notifier_chain_register+0x5c/0x88, CPU#0: kworker/u16:3/50 Call trace: notifier_chain_register+0x5c/0x88 (P) atomic_notifier_chain_register+0x30/0x58 register_restart_handler+0x1c/0x28 pca9450_i2c_probe+0x418/0x538 i2c_device_probe+0x220/0x3d0 really_probe+0x114/0x410 __driver_probe_device+0xa0/0x150 driver_probe_device+0x40/0x114 __device_attach_driver+0xd4/0x12c So use devm_register_sys_off_handler to let kernel handle the resource free to avoid kernel dump. Fixes: 6157e62b07d9 ("regulator: pca9450: Add restart handler") Signed-off-by: Peng Fan Link: https://patch.msgid.link/20250815-pca9450-v1-1-7748e362dc97@nxp.com Signed-off-by: Mark Brown

regulator: pca9450: Support PWM mode also for pca9451a

2025-06-22T23:27:07Z

Previous commit 548d770c330c ("regulator: pca9450: Add support for mode operations") added support for setting forced PWM mode on the buck regulators for pca9450a and pca9450bc parts. However part pca9451a also supports this feature, thus add support for it. Fixes: 548d770c330c ("regulator: pca9450: Add support for mode operations") Signed-off-by: Primoz Fiser Link: https://patch.msgid.link/20250618063339.2508893-1-primoz.fiser@norik.com Signed-off-by: Mark Brown

regulator: pca9450: Add support for mode operations

2025-06-08T22:35:16Z

Make the PWM mode on the buck controllers configurable from devicetree. Some boards require forced PWM mode to keep the supply ripple within acceptable limits under light load conditions. Signed-off-by: Martijn de Gouw Link: https://patch.msgid.link/20250525071823.819342-2-martijn.de.gouw@prodrive-technologies.com Signed-off-by: Mark Brown