serial: max310x: Driver rework

This patch rework max310x driver.
Major changes have been made:
- Prepare driver to support ICs with more than one UART.
- Prepare driver to support work with I2C-bus.
The patch changes almost every function and can not be divided into parts.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index 5e3d68917ffe..25772c15276d 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -291,9 +291,9 @@ config SERIAL_MAX3100
 
 config SERIAL_MAX310X
         bool "MAX310X support"
-        depends on SPI
+        depends on SPI_MASTER
         select SERIAL_CORE
-        select REGMAP_SPI if SPI
+        select REGMAP_SPI if SPI_MASTER
         default n
         help
           This selects support for an advanced UART from Maxim (Dallas).