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Commit ebc5e200 authored by Kevin Cernekee's avatar Kevin Cernekee Committed by Rob Herring
Browse files

serial: of_serial: Support big-endian register accesses 



If the device node has a "big-endian" property and 32-bit registers, tell
the serial driver to use UPIO_MEM32BE instead of UPIO_MEM32.

Signed-off-by: default avatarKevin Cernekee <cernekee@gmail.com>
Acked-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent c627f2ce

drivers/tty/serial/of_serial.c

+2 −1
Original line number Diff line number Diff line
@@ -115,7 +115,8 @@ static int of_platform_serial_setup(struct platform_device *ofdev, 
			port->iotype = UPIO_MEM;

			break;

		case 4:

			port->iotype = UPIO_MEM32;

			port->iotype = of_device_is_big_endian(np) ?

				       UPIO_MEM32BE : UPIO_MEM32;

			break;

		default:

			dev_warn(&ofdev->dev, "unsupported reg-io-width (%d)\n",