serial: New serial driver MAX310X
This driver is a replacement for a MAX3107 driver with a lot of
improvements and new features.
The main differences from the old version:
- Using the regmap.
- Using devm_XXX-related functions.
- The use of threaded IRQ with IRQF_ONESHOT flag allows the driver to
the hardware that supports only level IRQ.
- Improved error handling of serial port, improved FIFO handling,
improved hardware & software flow control.
- Advanced flags allows turn on RS-485 mode (Auto direction control).
- Ability to load multiple instances of drivers.
- Added support for MAX3108.
- GPIO support.
- Driver is quite ready for adding I2C support and support other ICs
with compatible registers set (MAX3109, MAX14830).
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index 0020786..7b3d9de 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -257,12 +257,19 @@
help
MAX3100 chip support
-config SERIAL_MAX3107
- tristate "MAX3107 support"
+config SERIAL_MAX310X
+ bool "MAX310X support"
depends on SPI
select SERIAL_CORE
+ select REGMAP_SPI if SPI
+ default n
help
- MAX3107 chip support
+ This selects support for an advanced UART from Maxim (Dallas).
+ Supported ICs are MAX3107, MAX3108.
+ Each IC contains 128 words each of receive and transmit FIFO
+ that can be controlled through I2C or high-speed SPI.
+
+ Say Y here if you want to support this ICs.
config SERIAL_DZ
bool "DECstation DZ serial driver"