diff options
| -rw-r--r-- | Documentation/devicetree/bindings/tty/serial/of-serial.txt | 2 | ||||
| -rw-r--r-- | drivers/tty/serial/of_serial.c | 4 |
2 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/tty/serial/of-serial.txt b/Documentation/devicetree/bindings/tty/serial/of-serial.txt index 0847fde..ba385f2 100644 --- a/Documentation/devicetree/bindings/tty/serial/of-serial.txt +++ b/Documentation/devicetree/bindings/tty/serial/of-serial.txt @@ -25,6 +25,8 @@ Optional properties: accesses to the UART (e.g. TI davinci). - used-by-rtas : set to indicate that the port is in use by the OpenFirmware RTAS and should not be registered. +- no-loopback-test: set to indicate that the port does not implements loopback + test mode Example: diff --git a/drivers/tty/serial/of_serial.c b/drivers/tty/serial/of_serial.c index ffc7879..df443b9 100644 --- a/drivers/tty/serial/of_serial.c +++ b/drivers/tty/serial/of_serial.c @@ -105,6 +105,10 @@ static int __devinit of_platform_serial_setup(struct platform_device *ofdev, port->uartclk = clk; port->flags = UPF_SHARE_IRQ | UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_FIXED_PORT | UPF_FIXED_TYPE; + + if (of_find_property(np, "no-loopback-test", NULL)) + port->flags |= UPF_SKIP_TEST; + port->dev = &ofdev->dev; if (type == PORT_TEGRA) |
