[SERIAL] kernel console should send CRLF not LFCR
Glen Turner reported that writing LFCR rather than the more
traditional CRLF causes issues with some terminals.
Since this aflicts many serial drivers, extract the common code
to a library function (uart_console_write) and arrange for each
driver to supply a "putchar" function.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/serial/8250_early.c b/drivers/serial/8250_early.c
index 59ba5d9..7e51119 100644
--- a/drivers/serial/8250_early.c
+++ b/drivers/serial/8250_early.c
@@ -74,7 +74,7 @@
}
}
-static void __init putc(struct uart_port *port, unsigned char c)
+static void __init putc(struct uart_port *port, int c)
{
wait_for_xmitr(port);
serial_out(port, UART_TX, c);
@@ -89,12 +89,7 @@
ier = serial_in(port, UART_IER);
serial_out(port, UART_IER, 0);
- while (*s && count-- > 0) {
- putc(port, *s);
- if (*s == '\n')
- putc(port, '\r');
- s++;
- }
+ uart_console_write(port, s, count, putc);
/* Wait for transmitter to become empty and restore the IER */
wait_for_xmitr(port);