Support ROHM BD96801 "scalable" PMIC. The ROHM BD96801 is automotive grade PMIC, intended to be usable in multiple solutions. The BD96801 can be used as a stand-alone, or together with separate 'companion PMICs'. This modular approach aims to make this PMIC suitable for various use-cases. This RFC series is a product of a _long_ process. The product has been re-designed a few times and this series has been sitting in my git forgotten for long periods of time, then been re-worked when new design has been available, after which it has again been forgotten. Last week I finally received the word that this product should've been stabilized, digged up my last set of patches (from Nov 2021 - cover letter reminding me the driver development had been done during 3 years...) I think this is valid information for reviewers as it's good to keep an eye on obsoleted practices - even though I tried updating this series. This is sent as an RFC because of the regulator features which can be configured only when the PMIC is in STBY state. This is described more detailed in the regulator patch. Another "oddity" is that the PMIC has two physical IRQ lines. When I last wrote this patch in 2021 I had some naming collison in debugfs for the IRQ domains. Back then I used: irq_domain_update_bus_token(intb_domain, DOMAIN_BUS_WIRED); to work-around the issue. Now, when rebasing to v6.9-rc1 the naming collision was gone and things seemed to work. However, it'd be great if the IRQ code in MFD driver was reviewed by greater minds :) Rest of the series ought to be business as usual. Matti Vaittinen (6): dt-bindings: ROHM BD96801 PMIC regulators dt-bindings: mfd: bd96801 PMIC core mfd: support ROHM BD96801 PMIC core regulator: bd96801: ROHM BD96801 PMIC regulators watchdog: ROHM BD96801 PMIC WDG driver MAINTAINERS: Add ROHM BD96801 'scalable PMIC' entries .../bindings/mfd/rohm,bd96801-pmic.yaml | 155 ++ .../regulator/rohm,bd96801-regulator.yaml | 69 + MAINTAINERS | 4 + drivers/mfd/Kconfig | 13 + drivers/mfd/Makefile | 1 + drivers/mfd/rohm-bd96801.c | 454 ++++ drivers/regulator/Kconfig | 12 + drivers/regulator/Makefile | 2 + drivers/regulator/bd96801-regulator.c | 2109 +++++++++++++++++ drivers/watchdog/Kconfig | 13 + drivers/watchdog/Makefile | 1 + drivers/watchdog/bd96801_wdt.c | 375 +++ include/linux/mfd/rohm-bd96801.h | 212 ++ include/linux/mfd/rohm-generic.h | 1 + 14 files changed, 3421 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/rohm,bd96801-pmic.yaml create mode 100644 Documentation/devicetree/bindings/regulator/rohm,bd96801-regulator.yaml create mode 100644 drivers/mfd/rohm-bd96801.c create mode 100644 drivers/regulator/bd96801-regulator.c create mode 100644 drivers/watchdog/bd96801_wdt.c create mode 100644 include/linux/mfd/rohm-bd96801.h base-commit: 4cece764965020c22cff7665b18a012006359095 -- 2.43.2 -- Matti Vaittinen, Linux device drivers ROHM Semiconductors, Finland SWDC Kiviharjunlenkki 1E 90220 OULU FINLAND ~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~ Simon says - in Latin please. ~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~ Thanks to Simon Glass for the translation =]
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