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tty: serial_core: Add name field to uart_port struct

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Introduce a field to store name of uart_port that can be used to easily
identify UART port instances on a system that has more than one UART
instance. The name is of the form ttyXN(eg. ttyS0, ttyAMA0,..) where N
is number that particular UART instance.
This field will be useful when printing debug info for a particular port
or in register IRQs with unique IRQ name. Port name is populated during
uart_add_one_port().

Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Vignesh R 2017-03-24 10:57:59 +05:30 • committed by Greg Kroah-Hartman
parent 7cd3e9dbdd
commit f7048b1590
2 changed files with 8 additions and 0 deletions
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1
include/linux/serial_core.h
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@ -247,6 +247,7 @@ struct uart_port {
unsigned char suspended;
unsigned char irq_wake;
unsigned char unused[2];
char *name; /* port name */
struct attribute_group *attr_group; /* port specific attributes */
const struct attribute_group **tty_groups; /* all attributes (serial core use only) */
struct serial_rs485 rs485;