serial: Move carriage return before line feed for some serial drivers
In general, a carriage return needs to execute before a line feed.
The patch is to change some serial drivers based on this rule, such
as serial_mxc.c, serial_pxa.c, serial_s3c24x0.c and usbtty.c.
Signed-off-by: Alison Wang <alison.wang@nxp.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/drivers/serial/serial_pxa.c b/drivers/serial/serial_pxa.c
index 8fbcc10..1eb19ec 100644
--- a/drivers/serial/serial_pxa.c
+++ b/drivers/serial/serial_pxa.c
@@ -156,6 +156,10 @@
{
struct pxa_uart_regs *uart_regs;
+ /* If \n, also do \r */
+ if (c == '\n')
+ pxa_putc_dev(uart_index, '\r');
+
uart_regs = pxa_uart_index_to_regs(uart_index);
if (!uart_regs)
hang();
@@ -163,10 +167,6 @@
while (!(readl(&uart_regs->lsr) & LSR_TEMT))
WATCHDOG_RESET();
writel(c, &uart_regs->thr);
-
- /* If \n, also do \r */
- if (c == '\n')
- pxa_putc_dev (uart_index,'\r');
}
/*