linux-kernel - [PATCH 1/4] serial: 8250_dw: Use dw8250_serial_out() in dw8250_serial

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Date:   Tue, 28 Jun 2022 16:42:31 +0300
From:   Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To:     linux-serial@...r.kernel.org, Greg KH <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 1/4] serial: 8250_dw: Use dw8250_serial_out() in dw8250_serial_out38x()

Place dw8250_serial_out() before dw8250_serial_out38x() so that it can
be called from dw8250_serial_out38x() to do the actual write.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
---
 drivers/tty/serial/8250/8250_dw.c | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index 167a691c7b19..41bf063396e4 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -143,29 +143,23 @@ static void dw8250_tx_wait_empty(struct uart_port *p)
 	}
 }
 
-static void dw8250_serial_out38x(struct uart_port *p, int offset, int value)
+static void dw8250_serial_out(struct uart_port *p, int offset, int value)
 {
 	struct dw8250_data *d = to_dw8250_data(p->private_data);
 
-	/* Allow the TX to drain before we reconfigure */
-	if (offset == UART_LCR)
-		dw8250_tx_wait_empty(p);
-
 	writeb(value, p->membase + (offset << p->regshift));
 
 	if (offset == UART_LCR && !d->uart_16550_compatible)
 		dw8250_check_lcr(p, value);
 }
 
-
-static void dw8250_serial_out(struct uart_port *p, int offset, int value)
+static void dw8250_serial_out38x(struct uart_port *p, int offset, int value)
 {
-	struct dw8250_data *d = to_dw8250_data(p->private_data);
-
-	writeb(value, p->membase + (offset << p->regshift));
+	/* Allow the TX to drain before we reconfigure */
+	if (offset == UART_LCR)
+		dw8250_tx_wait_empty(p);
 
-	if (offset == UART_LCR && !d->uart_16550_compatible)
-		dw8250_check_lcr(p, value);
+	dw8250_serial_out(p, offset, value);
 }
 
 static unsigned int dw8250_serial_in(struct uart_port *p, int offset)
-- 
2.30.2