[PATCH v4 2/3] serial: 8250: export serial8250_do_set_divisor()
From: andriy.shevchenko@linux.intel.com (Andy Shevchenko)
Date: 2018-07-10 13:56:36
Also in:
linux-serial, lkml
On Tue, 2018-07-10 at 11:13 +0800, Jisheng Zhang wrote:
Some drivers could call serial8250_do_set_divisor() to complete its own set_divisor routine. Export this symbol for code reusing.
I dunno Greg's preferences here, but it could be merged with patch 1. In any case, Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> for this part.
quoted hunk ↗ jump to hunk
Signed-off-by: Jisheng Zhang <redacted> --- drivers/tty/serial/8250/8250_port.c | 5 +++-- include/linux/serial_8250.h | 3 +++ 2 files changed, 6 insertions(+), 2 deletions(-)diff --git a/drivers/tty/serial/8250/8250_port.cb/drivers/tty/serial/8250/8250_port.c index ce0dc17f18ee..945f8dc2d50f 100644--- a/drivers/tty/serial/8250/8250_port.c +++ b/drivers/tty/serial/8250/8250_port.c@@ -2580,8 +2580,8 @@ static unsigned charserial8250_compute_lcr(struct uart_8250_port *up, return cval; } -static void serial8250_do_set_divisor(struct uart_port *port, unsigned int baud, - unsigned int quot, unsigned int quot_frac) +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(structuart_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)diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h index 76b9db71e489..18e21427bce4 100644 --- a/include/linux/serial_8250.h +++ b/include/linux/serial_8250.h@@ -160,6 +160,9 @@ extern void serial8250_do_shutdown(structuart_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);
-- Andy Shevchenko [off-list ref] Intel Finland Oy