[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/m32r_sio.c b/drivers/serial/m32r_sio.c
index 242a041..876bc5e 100644
--- a/drivers/serial/m32r_sio.c
+++ b/drivers/serial/m32r_sio.c
@@ -1039,6 +1039,14 @@
}
}
+static void m32r_sio_console_putchar(struct uart_port *port, int ch)
+{
+ struct uart_sio_port *up = (struct uart_sio_port *)port;
+
+ wait_for_xmitr(up);
+ sio_out(up, SIOTXB, ch);
+}
+
/*
* Print a string to the serial port trying not to disturb
* any possible real use of the port...
@@ -1058,23 +1066,7 @@
ier = sio_in(up, SIOTRCR);
sio_out(up, SIOTRCR, 0);
- /*
- * Now, do each character
- */
- for (i = 0; i < count; i++, s++) {
- wait_for_xmitr(up);
-
- /*
- * Send the character out.
- * If a LF, also do CR...
- */
- sio_out(up, SIOTXB, *s);
-
- if (*s == 10) {
- wait_for_xmitr(up);
- sio_out(up, SIOTXB, 13);
- }
- }
+ uart_console_write(&up->port, s, count, m32r_sio_console_putchar);
/*
* Finally, wait for transmitter to become empty
