[PATCH v1 0/9] ARM: Add GPIO and PSU Support

From: nick . hawkins
Date: Tue Apr 18 2023 - 11:32:48 EST


From: Nick Hawkins <nick.hawkins@xxxxxxx>

The GXP has multiple interfaces that provide I/O to it. There is GPIO
coming from the host and from the cpld. Both of these interfaces are
interruptable.

The GXP is able to monitor PSU's via I2C. There is support for up to 8
PSUs. The GXP gets presence information from I/O with the cpld.

The fan controller and the psu monitor consume I/O from the CPLD.
Thus for the GXP to be able to report this GPIO to the OpenBMC stack
calls have been enabled for the GPIO driver to use.

Nick Hawkins (9):
gpio: gxp: Add HPE GXP GPIO
hwmon: (gxp_fan_ctrl) Give GPIO access to fan data
hwmon: (gxp-psu) Add driver to read HPE PSUs
dt-bindings: hwmon: Modify hpe,gxp-fan-ctrl
dt-bindings: gpio: Add HPE GXP GPIO
dt-bindings: hwmon: Add HPE GXP PSU Support
ARM: dts: gxp: add psu, i2c, gpio
ARM: multi_v7_defconfig: Add PSU, GPIO, and I2C
MAINTAINERS: hpe: Add GPIO, PSU

.../bindings/gpio/hpe,gxp-gpio.yaml | 137 +++
.../bindings/hwmon/hpe,gxp-fan-ctrl.yaml | 6 +-
.../bindings/hwmon/hpe,gxp-psu.yaml | 45 +
MAINTAINERS | 4 +
arch/arm/boot/dts/hpe-bmc-dl360gen10.dts | 161 +++
arch/arm/boot/dts/hpe-gxp.dtsi | 197 ++-
arch/arm/configs/multi_v7_defconfig | 5 +-
drivers/gpio/Kconfig | 9 +
drivers/gpio/Makefile | 1 +
drivers/gpio/gpio-gxp.c | 1056 +++++++++++++++++
drivers/hwmon/Kconfig | 10 +
drivers/hwmon/Makefile | 1 +
drivers/hwmon/gxp-fan-ctrl.c | 58 +-
drivers/hwmon/gxp-psu.c | 773 ++++++++++++
14 files changed, 2404 insertions(+), 59 deletions(-)
create mode 100644 Documentation/devicetree/bindings/gpio/hpe,gxp-gpio.yaml
create mode 100644 Documentation/devicetree/bindings/hwmon/hpe,gxp-psu.yaml
create mode 100644 drivers/gpio/gpio-gxp.c
create mode 100644 drivers/hwmon/gxp-psu.c

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2.17.1