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[v1,0/6] ARM: Add GXP Fan and SPI controllers

Message ID 20221104193657.105130-1-nick.hawkins@hpe.com (mailing list archive)
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Series ARM: Add GXP Fan and SPI controllers | expand

Message

Hawkins, Nick Nov. 4, 2022, 7:36 p.m. UTC 
From: Nick Hawkins <nick.hawkins@hpe.com>

The GXP SoC can support up to 16 fans through the interface provided by
the CPLD. The fans speeds are controlled via a pwm value 0-255. The fans
are also capable of reporting if they have failed to the CPLD which in
turn reports the status to the GXP SoC. Based on previous feedback the
registers required for fan control have been regmaped individualy to fan
driver. Specifically these registers are the function 2 registers and the
programmable logic registers from the CPLD. Additionally in this patchset
there is support for the SPI driver which already exists as spi-gxp.c in
the SPI driver.

Nick Hawkins (6):
  hwmon: (gxp-fan-ctrl) Add GXP fan controller
  ABI: sysfs-class-hwmon: add a description for fanY_fault
  dt-bindings: hwmon: Add hpe,gxp-fan-ctrl
  ARM: dts: add GXP Support for fans and SPI
  ARM: multi_v7_defconfig: Add GXP Fan and SPI support
  MAINTAINERS: add gxp fan controller and documents

 Documentation/ABI/testing/sysfs-class-hwmon   |   9 +
 .../bindings/hwmon/hpe,gxp-fan-ctrl.yaml      |  41 ++
 Documentation/hwmon/gxp-fan-ctrl.rst          |  36 ++
 MAINTAINERS                                   |   2 +
 arch/arm/boot/dts/hpe-bmc-dl360gen10.dts      |  58 +++
 arch/arm/boot/dts/hpe-gxp.dtsi                |  64 +++-
 arch/arm/configs/multi_v7_defconfig           |   2 +
 drivers/hwmon/Kconfig                         |   8 +
 drivers/hwmon/Makefile                        |   1 +
 drivers/hwmon/gxp-fan-ctrl.c                  | 362 ++++++++++++++++++
 10 files changed, 564 insertions(+), 19 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/hwmon/hpe,gxp-fan-ctrl.yaml
 create mode 100644 Documentation/hwmon/gxp-fan-ctrl.rst
 create mode 100644 drivers/hwmon/gxp-fan-ctrl.c