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Commit 6226e5f3 authored by Jisheng Zhang's avatar Jisheng Zhang Committed by Greg Kroah-Hartman
Browse files

serial: 8250: export serial8250_do_set_divisor() 



Some drivers could call serial8250_do_set_divisor() to complete its
own set_divisor routine. Export this symbol for code reusing.

Signed-off-by: default avatarJisheng Zhang <Jisheng.Zhang@synaptics.com>
Reviewed-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 0238d2b4

drivers/tty/serial/8250/8250_port.c

+3 −2
Original line number Diff line number Diff line
@@ -2580,7 +2580,7 @@ static unsigned char serial8250_compute_lcr(struct uart_8250_port *up, 
	return cval;

}



static void serial8250_do_set_divisor(struct uart_port *port, unsigned int baud,

void serial8250_do_set_divisor(struct uart_port *port, unsigned int baud,

			       unsigned int quot, unsigned int quot_frac)

{

	struct uart_8250_port *up = up_to_u8250p(port);
@@ -2612,6 +2612,7 @@ static void serial8250_do_set_divisor(struct uart_port *port, unsigned int baud, 
		serial_port_out(port, 0x2, quot_frac);

	}

}

EXPORT_SYMBOL_GPL(serial8250_do_set_divisor);



static void serial8250_set_divisor(struct uart_port *port, unsigned int baud,

				   unsigned int quot, unsigned int quot_frac)

include/linux/serial_8250.h

+3 −0
Original line number Diff line number Diff line
@@ -160,6 +160,9 @@ extern void serial8250_do_shutdown(struct uart_port *port); 
extern void serial8250_do_pm(struct uart_port *port, unsigned int state,

			     unsigned int oldstate);

extern void serial8250_do_set_mctrl(struct uart_port *port, unsigned int mctrl);

extern void serial8250_do_set_divisor(struct uart_port *port, unsigned int baud,

				      unsigned int quot,

				      unsigned int quot_frac);

extern int fsl8250_handle_irq(struct uart_port *port);

int serial8250_handle_irq(struct uart_port *port, unsigned int iir);

unsigned char serial8250_rx_chars(struct uart_8250_port *up, unsigned char lsr);