Add selective auto-flow-control support for UniPhier serial driver.
Signed-off-by: Dai Okamura <okamura.dai@socionext.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- interrupts: a single interrupt specifier.
- clocks: phandle to the input clock.
+Optional properties:
+-auto-flow-control: enable automatic flow control support.
+
Example:
aliases {
serial0 = &serial0;
up.port.flags = UPF_FIXED_PORT | UPF_FIXED_TYPE;
up.capabilities = UART_CAP_FIFO;
+ if (of_property_read_bool(dev->of_node, "auto-flow-control"))
+ up.capabilities |= UART_CAP_AFE;
+
up.port.serial_in = uniphier_serial_in;
up.port.serial_out = uniphier_serial_out;
up.dl_read = uniphier_serial_dl_read;