tty/serial: of_serial: add support for PXA/MMP uarts

Add mrvl,pxa-uart and mrvl,mmp-uart compatible strings for the of_serial
driver. These are 8250 variants which have a port type of PORT_XSCALE.

There is also the serial driver pxa.c with these compatible strings
already. However, it can be replaced with the common 8250 driver. It has
some issues like it cannot coexist with the 8250 driver due to tty name
collision. That also means adding these compatible strings here should
not case a problem.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: linux-serial@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/of_serial.c b/drivers/tty/serial/of_serial.c
index 3194b42c97c0d3c0ecc8be50911706de9e069fe5..fbb719c89a6114d801cfbf62922def461a7a6a47 100644 (file)
--- a/drivers/tty/serial/of_serial.c
+++ b/drivers/tty/serial/of_serial.c
@@ -335,6 +335,10 @@ static struct of_device_id of_platform_serial_table[] = {
                .data = (void *)PORT_ALTR_16550_F64, },
        { .compatible = "altr,16550-FIFO128",
                .data = (void *)PORT_ALTR_16550_F128, },
+       { .compatible = "mrvl,mmp-uart",
+               .data = (void *)PORT_XSCALE, },
+       { .compatible = "mrvl,pxa-uart",
+               .data = (void *)PORT_XSCALE, },
 #ifdef CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL
        { .compatible = "ibm,qpace-nwp-serial",
                .data = (void *)PORT_NWPSERIAL, },