[PATCH v1 0/9] Add Nuvoton NCT6694 MFD devices

Ming Yu
2024-10-24T08:59:42Z

This patch series introduces support for Nuvoton NCT6694, a peripheral
expander based on USB interface. It models the chip as an MFD driver
(1/9), GPIO driver(2/9), I2C Adapter driver(3/9), CANfd driver(4/9),
WDT driver(5/9), HWMON driver(6/9), IIO driver(7/9), PWM driver(8/9),
and RTC driver(9/9).

The MFD driver implements USB device functionality to issue
custom-define USB bulk pipe packets for NCT6694. Each child device can
use the USB functions nct6694_read_msg() and nct6694_write_msg() to issue
a command. They can also register a handler function that will be called
when the USB device receives its interrupt pipe.

The following introduces the custom-define USB transactions:
nct6694_read_msg - Send bulk-out pipe to write request packet
Receive bulk-in pipe to read response packet
Receive bulk-in pipe to read data packet

nct6694_write_msg - Send bulk-out pipe to write request packet
Send bulk-out pipe to write data packet
Receive bulk-in pipe to read response packet
Receive bulk-in pipe to read data packet

Ming Yu (9):
mfd: Add core driver for Nuvoton NCT6694
gpio: Add Nuvoton NCT6694 GPIO support
i2c: Add Nuvoton NCT6694 I2C support
can: Add Nuvoton NCT6694 CAN support
watchdog: Add Nuvoton NCT6694 WDT support
hwmon: Add Nuvoton NCT6694 HWMON support
iio: adc: Add Nuvoton NCT6694 IIO support
pwm: Add Nuvoton NCT6694 PWM support
rtc: Add Nuvoton NCT6694 RTC support

MAINTAINERS | 15 +
drivers/gpio/Kconfig | 12 +
drivers/gpio/Makefile | 1 +
drivers/gpio/gpio-nct6694.c | 489 ++++++++++++++++++
drivers/hwmon/Kconfig | 10 +
drivers/hwmon/Makefile | 1 +
drivers/hwmon/nct6694-hwmon.c | 407 +++++++++++++++
drivers/i2c/busses/Kconfig | 10 +
drivers/i2c/busses/Makefile | 1 +
drivers/i2c/busses/i2c-nct6694.c | 166 ++++++
drivers/iio/adc/Kconfig | 10 +
drivers/iio/adc/Makefile | 1 +
drivers/iio/adc/nct6694_adc.c | 616 ++++++++++++++++++++++
drivers/mfd/Kconfig | 10 +
drivers/mfd/Makefile | 2 +
drivers/mfd/nct6694.c | 394 +++++++++++++++
drivers/net/can/Kconfig | 10 +
drivers/net/can/Makefile | 1 +
drivers/net/can/nct6694_canfd.c | 843 +++++++++++++++++++++++++++++++
drivers/pwm/Kconfig | 10 +
drivers/pwm/Makefile | 1 +
drivers/pwm/pwm-nct6694.c | 245 +++++++++
drivers/rtc/Kconfig | 10 +
drivers/rtc/Makefile | 1 +
drivers/rtc/rtc-nct6694.c | 276 ++++++++++
drivers/watchdog/Kconfig | 11 +
drivers/watchdog/Makefile | 1 +
drivers/watchdog/nct6694_wdt.c | 329 ++++++++++++
include/linux/mfd/nct6694.h | 168 ++++++
29 files changed, 4051 insertions(+)
create mode 100644 drivers/gpio/gpio-nct6694.c
create mode 100644 drivers/hwmon/nct6694-hwmon.c
create mode 100644 drivers/i2c/busses/i2c-nct6694.c
create mode 100644 drivers/iio/adc/nct6694_adc.c
create mode 100644 drivers/mfd/nct6694.c
create mode 100644 drivers/net/can/nct6694_canfd.c
create mode 100644 drivers/pwm/pwm-nct6694.c
create mode 100644 drivers/rtc/rtc-nct6694.c
create mode 100644 drivers/watchdog/nct6694_wdt.c
create mode 100644 include/linux/mfd/nct6694.h

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2.34.1