Commit 797bd4d4 authored by Jiri Slaby's avatar Jiri Slaby Committed by Greg Kroah-Hartman
Browse files

tty: serial: define UART_LCR_WLEN() macro 



Define a generic UART_LCR_WLEN() macro with a size argument. It can be
used to encode byte size into an LCR value. Therefore we can use it to
simplify the drivers using tty_get_char_size() in the next patches.

Signed-off-by: default avatarJiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220224095558.30929-1-jslaby@suse.cz


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent d4ab5487

include/linux/serial.h

+2 −0
Original line number Diff line number Diff line
@@ -12,6 +12,8 @@ 
#include <asm/page.h>

#include <uapi/linux/serial.h>



/* Helper for dealing with UART_LCR_WLEN* defines */

#define UART_LCR_WLEN(x)	((x) - 5)



/*

 * Counters of the input lines (CTS, DSR, RI, CD) interrupts