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Message-Id: <20250603-pf1550-v4-0-bfdf51ee59cc@savoirfairelinux.com>
Date: Tue, 03 Jun 2025 14:27:44 -0400
From: Samuel Kayode via B4 Relay <devnull+samuel.kayode.savoirfairelinux.com@...nel.org>
To: Lee Jones <lee@...nel.org>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>,
Dmitry Torokhov <dmitry.torokhov@...il.com>,
Sebastian Reichel <sre@...nel.org>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-input@...r.kernel.org, linux-pm@...r.kernel.org,
Abel Vesa <abelvesa@...nel.org>, Abel Vesa <abelvesa@...ux.com>,
Robin Gong <b38343@...escale.com>,
Enric Balletbo i Serra <eballetbo@...il.com>,
Samuel Kayode <samuel.kayode@...oirfairelinux.com>,
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v4 0/6] add support for pf1550 PMIC MFD-based drivers
This series adds support for pf1550 PMIC. It provides the core mfd driver and a
set of three sub-drivers for the regulator, power supply and input subsystems.
Patch 1 adds the DT binding document for the PMIC. Patches 2-5 adds the
pertinent drivers. Last patch adds a MAINTAINERS entry for the drivers.
Changes since v1:
- DT bindings for all devices included
- Add onkey driver
- Add driver for the regulators
- Ensure charger is activated as some variants have it off by default
- Update mfd and charger driver per feedback from eballetbo@...il.com
- Add myself as maintainer for these drivers
- Link to v1: https://lore.kernel.org/1523974819-8711-1-git-send-email-abel.vesa@nxp.com/
Changes since v2:
- Rebase on recent mainline kernel v6.15
- Single yaml file containing dt bindings for all pf1550 devices
- irq mapping done in MFD driver as suggested by Dmitry Torokhov
- Drop unnecessary includes in drivers
- Replace dev_err with dev_err_probe in probe method of drivers
- Drop compatible string from drivers of the sub-devices
- Remove dependency on OF from drivers of the sub-devices
- onkey: move driver from input/keyboard into input/misc
- onkey: remove dependency on OF
- onkey: use onkey virqs instead of central irq
- onkey: fix integer overflow for regmap_write when unmasking
interrupts during pf1550_onkey_resume
- charger: add support for monitored-battery which is used in setting
a constant voltage for the charger.
- Address other feedback from Dmitry Torokhov and Krzysztof Kozlowski
- Link to v2: https://lore.kernel.org/cover.1747409892.git.samuel.kayode@savoirfairelinux.com/
Changes since v3:
- Update manufacturer from Freescale to NXP in compatible,
dt-binding and Kconfigs
- Use C++ style comments for SPDX license in .c code
- Add portions copyright to source code
- irqs are defined as struct resource in mfd cell such that
platform_get_irq is used in the sub-devices
- Make struct pf1550_dev of type const in sub-device driver
- irq variable dropped from sub-device driver struct
- EXPORT_SYMBOL of global pf1550_read_otp function for use in
regulator driver
- Drop unneeded info in driver_data when defining device table id
- regulator: validate ramp_delay
- regulator: report overcurrent and over temperature events
- onkey: drop unnecessary keycode variable
- onkey: change wakeup variable to type bool
- onkey: replace (error < 0) with error in if statement when possible
- onkey: use pm_sleep_ptr when defining driver.pm
- charger: finish handling of some interrupts in threaded irq handler
- Link to v3: https://lore.kernel.org/20250527-pf1550-v3-0-45f69453cd51@savoirfairelinux.com/
Signed-off-by: Samuel Kayode <samuel.kayode@...oirfairelinux.com>
---
To: Lee Jones <lee@...nel.org>
To: Rob Herring <robh@...nel.org>
To: Krzysztof Kozlowski <krzk+dt@...nel.org>
To: Conor Dooley <conor+dt@...nel.org>
To: Samuel Kayode <samuel.kayode@...oirfairelinux.com>
To: Liam Girdwood <lgirdwood@...il.com>
To: Mark Brown <broonie@...nel.org>
To: Dmitry Torokhov <dmitry.torokhov@...il.com>
To: Sebastian Reichel <sre@...nel.org>
Cc: devicetree@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Cc: linux-input@...r.kernel.org
Cc: linux-pm@...r.kernel.org
---
Samuel Kayode (6):
dt-bindings: mfd: add pf1550
mfd: pf1550: add core mfd driver
regulator: pf1550: add support for regulator
input: pf1550: add onkey support
power: supply: pf1550: add battery charger support
MAINTAINERS: add an entry for pf1550 mfd driver
.../devicetree/bindings/mfd/nxp,pf1550.yaml | 139 +++++
MAINTAINERS | 10 +
drivers/input/misc/Kconfig | 11 +
drivers/input/misc/Makefile | 1 +
drivers/input/misc/pf1550-onkey.c | 184 ++++++
drivers/mfd/Kconfig | 14 +
drivers/mfd/Makefile | 2 +
drivers/mfd/pf1550.c | 305 ++++++++++
drivers/power/supply/Kconfig | 11 +
drivers/power/supply/Makefile | 1 +
drivers/power/supply/pf1550-charger.c | 654 +++++++++++++++++++++
drivers/regulator/Kconfig | 9 +
drivers/regulator/Makefile | 1 +
drivers/regulator/pf1550-regulator.c | 361 ++++++++++++
include/linux/mfd/pf1550.h | 244 ++++++++
15 files changed, 1947 insertions(+)
---
base-commit: 0a4b866d08c6adaea2f4592d31edac6deeb4dcbd
change-id: 20250527-pf1550-d401f0d07b80
Best regards,
--
Samuel Kayode <samuel.kayode@...oirfairelinux.com>
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