From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jisheng Zhang Subject: [PATCH v6 2/3] serial: 8250: export serial8250_do_set_divisor() Date: Thu, 12 Jul 2018 09:58:14 +0800 Message-ID: <20180712095814.76b0f159@xhacker.debian> References: <20180712095504.4d9583ce@xhacker.debian> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20180712095504.4d9583ce@xhacker.debian> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Andy Shevchenko , Greg Kroah-Hartman , Jiri Slaby Cc: linux-serial@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org List-Id: linux-serial@vger.kernel.org Some drivers could call serial8250_do_set_divisor() to complete its own set_divisor routine. Export this symbol for code reusing. Signed-off-by: Jisheng Zhang Reviewed-by: Andy Shevchenko --- 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.c b/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 char serial8250_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(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) 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(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); -- 2.18.0