serdev: add method to set parity
Adds serdev_device_set_parity() and an implementation for ttyport.
The interface uses an enum with the values SERIAL_PARITY_NONE,
SERIAL_PARITY_EVEN and SERIAL_PARITY_ODD.
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Reviewed-by: Johan Hovold <johan@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/drivers/tty/serdev/core.c b/drivers/tty/serdev/core.c
index 1bef398..3c573a8 100644
--- a/drivers/tty/serdev/core.c
+++ b/drivers/tty/serdev/core.c
@@ -225,6 +225,18 @@ void serdev_device_set_flow_control(struct serdev_device *serdev, bool enable)
}
EXPORT_SYMBOL_GPL(serdev_device_set_flow_control);
+int serdev_device_set_parity(struct serdev_device *serdev,
+ enum serdev_parity parity)
+{
+ struct serdev_controller *ctrl = serdev->ctrl;
+
+ if (!ctrl || !ctrl->ops->set_parity)
+ return -ENOTSUPP;
+
+ return ctrl->ops->set_parity(ctrl, parity);
+}
+EXPORT_SYMBOL_GPL(serdev_device_set_parity);
+
void serdev_device_wait_until_sent(struct serdev_device *serdev, long timeout)
{
struct serdev_controller *ctrl = serdev->ctrl;