[PATCH v1 0/8] mfd: Add support for NXP MC33978/MC34978 MSDI

[Oleksij Rempel]

This series adds support for the NXP MC33978/MC34978 Multiple Switch Detection
Interface (MSDI) via the MFD framework.

Architecture overview:
* mfd: Core driver handling 2-frame pipelined SPI, regulator sequencing, and
  linear irq_domain. Harvests status bits from SPI MISO MSB.
* pinctrl: Exposes 22 physical switch inputs as standard GPIOs. Proxies IRQs to
  the MFD domain.
* hwmon: Exposes thermal limits, VBATP/VDDQ voltage boundaries, and dynamic
  fault alarms.
* mux: Controls the 24-to-1 AMUX routing analog signals (switch voltages,
  temperature, VBATP) to an external ADC.

Initial pinctrl implementation by David Jander, reworked into this MFD
architecture.

Best regards,
Oleksij

David Jander (1):
  pinctrl: add NXP MC33978/MC34978 pinctrl driver

Oleksij Rempel (7):
  dt-bindings: mfd: add NXP MC33978/MC34978 MSDI
  mfd: add NXP MC33978/MC34978 core driver
  dt-bindings: pinctrl: add NXP MC33978/MC34978 pinctrl
  dt-bindings: hwmon: add NXP MC33978/MC34978 hwmon
  hwmon: add NXP MC33978/MC34978 driver
  dt-bindings: mux: add NXP MC33978/MC34978 AMUX
  mux: add NXP MC33978/MC34978 AMUX driver

 .../bindings/hwmon/nxp,mc33978-hwmon.yaml     |  34 +
 .../devicetree/bindings/mfd/nxp,mc33978.yaml  | 119 +++
 .../bindings/mux/nxp,mc33978-mux.yaml         |  55 ++
 .../bindings/pinctrl/nxp,mc33978-pinctrl.yaml |  66 ++
 drivers/hwmon/Kconfig                         |  10 +
 drivers/hwmon/Makefile                        |   1 +
 drivers/hwmon/mc33978-hwmon.c                 | 439 ++++++++++
 drivers/mfd/Kconfig                           |  13 +
 drivers/mfd/Makefile                          |   2 +
 drivers/mfd/mc33978.c                         | 749 ++++++++++++++++++
 drivers/mux/Kconfig                           |  14 +
 drivers/mux/Makefile                          |   2 +
 drivers/mux/mc33978-mux.c                     | 119 +++
 drivers/pinctrl/Kconfig                       |  14 +
 drivers/pinctrl/Makefile                      |   1 +
 drivers/pinctrl/pinctrl-mc33978.c             | 709 +++++++++++++++++
 include/linux/mfd/mc33978.h                   |  97 +++
 17 files changed, 2444 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwmon/nxp,mc33978-hwmon.yaml
 create mode 100644 Documentation/devicetree/bindings/mfd/nxp,mc33978.yaml
 create mode 100644 Documentation/devicetree/bindings/mux/nxp,mc33978-mux.yaml
 create mode 100644 Documentation/devicetree/bindings/pinctrl/nxp,mc33978-pinctrl.yaml
 create mode 100644 drivers/hwmon/mc33978-hwmon.c
 create mode 100644 drivers/mfd/mc33978.c
 create mode 100644 drivers/mux/mc33978-mux.c
 create mode 100644 drivers/pinctrl/pinctrl-mc33978.c
 create mode 100644 include/linux/mfd/mc33978.h

--
2.47.3