This patch series introduces support for Nuvoton NCT6694, a peripheral
expander based on USB interface. It models the chip as an MFD driver
(1/7), GPIO driver(2/7), I2C Adapter driver(3/7), CANfd driver(4/7),
WDT driver(5/7), HWMON driver(6/7), and RTC driver(7/7).
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 request interrupt 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
Changes since version 3:
- Modify array buffer to structure for each drivers
- Fix defines and comments for each drivers
- Add header <linux/bits.h> and use BIT macro in nct6694.c and
gpio-nct6694.c
- Modify mutex_init() to devm_mutex_init()
- Add rx-offload helper in nct6694_canfd.c
- Drop watchdog_init_timeout() in nct6694_wdt.c
- Modify the division method to DIV_ROUND_CLOSEST() in nct6694-hwmon.c
- Drop private mutex and use rtc core lock in rtc-nct6694.c
- Modify device_set_wakeup_capable() to device_init_wakeup() in
rtc-nct6694.c
Changes since version 2:
- Add MODULE_ALIAS() for each child driver
- Modify gpio line names be a local variable in gpio-nct6694.c
- Drop unnecessary platform_get_drvdata() in gpio-nct6694.c
- Rename each command in nct6694_canfd.c
- Modify each function name consistently in nct6694_canfd.c
- Modify the pretimeout validation procedure in nct6694_wdt.c
- Fix warnings in nct6694-hwmon.c
Changes since version 1:
- Implement IRQ domain to handle IRQ demux in nct6694.c
- Modify USB_DEVICE to USB_DEVICE_AND_INTERFACE_INFO API in nct6694.c
- Add each driver's command structure
- Fix USB functions in nct6694.c
- Fix platform driver registration in each child driver
- Sort each driver's header files alphabetically
- Drop unnecessary header in gpio-nct6694.c
- Add gpio line names in gpio-nct6694.c
- Fix errors and warnings in nct6694_canfd.c
- Fix TX-flow control in nct6694_canfd.c
- Fix warnings in nct6694_wdt.c
- Drop unnecessary logs in nct6694_wdt.c
- Modify start() function to setup device in nct6694_wdt.c
- Add voltage sensors functionality in nct6694-hwmon.c
- Add temperature sensors functionality in nct6694-hwmon.c
- Fix overwrite error return values in nct6694-hwmon.c
- Add write value limitation for each write() function in nct6694-hwmon.c
- Drop unnecessary logs in rtc-nct6694.c
- Fix overwrite error return values in rtc-nct6694.c
- Modify to use dev_err_probe API in rtc-nct6694.c
Ming Yu (7):
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
rtc: Add Nuvoton NCT6694 RTC support
MAINTAINERS | 13 +
drivers/gpio/Kconfig | 12 +
drivers/gpio/Makefile | 1 +
drivers/gpio/gpio-nct6694.c | 462 +++++++++++++++++
drivers/hwmon/Kconfig | 10 +
drivers/hwmon/Makefile | 1 +
drivers/hwmon/nct6694-hwmon.c | 851 +++++++++++++++++++++++++++++++
drivers/i2c/busses/Kconfig | 10 +
drivers/i2c/busses/Makefile | 1 +
drivers/i2c/busses/i2c-nct6694.c | 156 ++++++
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 | 826 ++++++++++++++++++++++++++++++
drivers/rtc/Kconfig | 10 +
drivers/rtc/Makefile | 1 +
drivers/rtc/rtc-nct6694.c | 263 ++++++++++
drivers/watchdog/Kconfig | 11 +
drivers/watchdog/Makefile | 1 +
drivers/watchdog/nct6694_wdt.c | 281 ++++++++++
include/linux/mfd/nct6694.h | 142 ++++++
23 files changed, 3469 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/mfd/nct6694.c
create mode 100644 drivers/net/can/nct6694_canfd.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
--
2.34.1
