[RFC v2 1/9] serdev: implement parity configuration

[Marcel Holtmann]

Hi Martin,

> Some Bluetooth modules (for example the ones found in Realtek RTL8723BS
> and RTL8723DS) want to communicate with the host with even parity
> enabled.
> Add a new function and the corresponding internal callbacks so parity
> can be configured. This supports enabling and disabling parity as well
> as setting the type to odd or even.
> 
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl at googlemail.com>
> ---
> drivers/tty/serdev/core.c           | 12 ++++++++++++
> drivers/tty/serdev/serdev-ttyport.c | 21 +++++++++++++++++++++
> include/linux/serdev.h              |  5 +++++
> 3 files changed, 38 insertions(+)
> 
> diff --git a/drivers/tty/serdev/core.c b/drivers/tty/serdev/core.c
> index 1bef39828ca7..d327b02980f5 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);
> 
> +void serdev_device_set_parity(struct serdev_device *serdev, bool enable,
> +			      bool odd)
> +{
> +	struct serdev_controller *ctrl = serdev->ctrl;
> +
> +	if (!ctrl || !ctrl->ops->set_parity)
> +		return;
> +
> +	ctrl->ops->set_parity(ctrl, enable, odd);
> +}
> +EXPORT_SYMBOL_GPL(serdev_device_set_parity);
> +

this really needs Rob’s ACK before I take the patch.

Regards

Marcel