linux-toradex.git/include/linux/mfd/da9150, branch master Linux kernel for Apalis and Colibri modules mfd: da9150: Balance IRQ wake on teardown 2026-09-24T14:16:16+00:00 Myeonghun Pak mhun512@gmail.com 2026-09-23T02:19:36+00:00 ef464f82f3aecad4071af71074b2ceb77ffbb609 DA9150 enables IRQ wake after registering its regmap IRQ chip, but does not disable it on a later probe failure or driver removal. This leaves the wake depth elevated after the handler is removed, and repeated bind attempts can accumulate the imbalance. Remember whether enabling IRQ wake succeeded and balance only a successful call. Remove MFD children first so their nested IRQ users are gone, then disable wake before removing the regmap IRQ chip. Preserve the existing non-fatal behavior when IRQ wake cannot be enabled. This issue was identified during our ongoing static-analysis research while reviewing kernel code. Fixes: b8fce55c09d3 ("mfd: Add support for DA9150 combined charger & fuel-gauge device") Assisted-by: LLM Co-developed-by: Ijae Kim <ae878000@gmail.com> Signed-off-by: Ijae Kim <ae878000@gmail.com> Signed-off-by: Myeonghun Pak <mhun512@gmail.com> Link: https://patch.msgid.link/20260923021936.957065-1-mhun512@gmail.com Signed-off-by: Lee Jones <lee@kernel.org> 
DA9150 enables IRQ wake after registering its regmap IRQ chip, but does not
disable it on a later probe failure or driver removal. This leaves the wake
depth elevated after the handler is removed, and repeated bind attempts can
accumulate the imbalance.

Remember whether enabling IRQ wake succeeded and balance only a successful
call. Remove MFD children first so their nested IRQ users are gone, then
disable wake before removing the regmap IRQ chip. Preserve the existing
non-fatal behavior when IRQ wake cannot be enabled.

This issue was identified during our ongoing static-analysis research
while reviewing kernel code.

Fixes: b8fce55c09d3 ("mfd: Add support for DA9150 combined charger & fuel-gauge device")
Assisted-by: LLM
Co-developed-by: Ijae Kim <ae878000@gmail.com>
Signed-off-by: Ijae Kim <ae878000@gmail.com>
Signed-off-by: Myeonghun Pak <mhun512@gmail.com>
Link: https://patch.msgid.link/20260923021936.957065-1-mhun512@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30T18:26:32+00:00 Thomas Gleixner tglx@linutronix.de 2019-05-27T06:55:01+00:00 2874c5fd284268364ece81a7bd936f3c8168e567 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
mfd: da9150: Add support for Fuel-Gauge 2015-10-13T10:27:54+00:00 Adam Thomson Adam.Thomson.Opensource@diasemi.com 2015-10-07T13:54:08+00:00 1ac710e08a86e4723286873db73edb2a6e99f591 Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> 
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
mfd: Add support for DA9150 combined charger & fuel-gauge device 2015-01-22T15:55:54+00:00 Adam Thomson Adam.Thomson.Opensource@diasemi.com 2014-12-22T16:51:06+00:00 b8fce55c09d3327014191247957d875c9fe5b7ce DA9150 is a combined Charger and Fuel-Gauge IC, with additional GPIO and GPADC functionality. Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> 
DA9150 is a combined Charger and Fuel-Gauge IC, with additional
GPIO and GPADC functionality.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>