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serial: abstraction for 8250 legacy ports

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Not every platform that has generic legacy 8250 ports manages to have them
clocked the right way or without errata. Provide a generic interface to
allow platforms to override the default behaviour in a manner that dumps
the complexity in *their* code not the 8250 driver.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alan Cox 2010-10-18 11:38:02 -07:00 • committed by Greg Kroah-Hartman
parent 4e4e66029a
commit af7f374356
2 changed files with 21 additions and 0 deletions
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4
include/linux/serial_8250.h
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@ -81,4 +81,8 @@ extern void serial8250_do_set_termios(struct uart_port *port,
extern void serial8250_do_pm(struct uart_port *port, unsigned int state,
unsigned int oldstate);
extern void serial8250_set_isa_configurator(void (*v)
(int port, struct uart_port *up,
unsigned short *capabilities));
#endif