Hi Ulrich,
Thank you for the patch.
On Monday 17 Jul 2017 17:24:32 Ulrich Hecht wrote:
> Adds serdev_device_set_parity() and an implementation for ttyport.
>
> Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@xxxxxxxxx>
> ---
> drivers/tty/serdev/core.c | 12 ++++++++++++
> drivers/tty/serdev/serdev-ttyport.c | 17 +++++++++++++++++
> include/linux/serdev.h | 4 ++++
> 3 files changed, 33 insertions(+)
>
> diff --git a/drivers/tty/serdev/core.c b/drivers/tty/serdev/core.c
> index f71b473..1fbaa4c 100644
> --- a/drivers/tty/serdev/core.c
> +++ b/drivers/tty/serdev/core.c
> @@ -242,6 +242,18 @@ int serdev_device_set_tiocm(struct serdev_device
> *serdev, int set, int clear) }
> EXPORT_SYMBOL_GPL(serdev_device_set_tiocm);
>
> +int serdev_device_set_parity(struct serdev_device *serdev,
> + bool enable, bool odd)
Code calling this function will be difficult to read:
serdev_device_set_partity(dev, true, false);
Without looking up the function definition, the last two arguments are not
very explicit. How about replacing them with a disabled, odd, even enum ?
> +{
> + struct serdev_controller *ctrl = serdev->ctrl;
> +
> + if (!ctrl || !ctrl->ops->set_parity)
> + return -ENOTSUPP;
> +
> + return ctrl->ops->set_parity(ctrl, enable, odd);
> +}
> +EXPORT_SYMBOL_GPL(serdev_device_set_parity);
> +
> static int serdev_drv_probe(struct device *dev)
> {
> const struct serdev_device_driver *sdrv =
> to_serdev_device_driver(dev->driver); diff --git
> a/drivers/tty/serdev/serdev-ttyport.c b/drivers/tty/serdev/serdev-ttyport.c
> index 302018d..9114956 100644
> --- a/drivers/tty/serdev/serdev-ttyport.c
> +++ b/drivers/tty/serdev/serdev-ttyport.c
> @@ -195,6 +195,22 @@ static int ttyport_set_tiocm(struct serdev_controller
> *ctrl, unsigned int set, u return tty->driver->ops->tiocmset(tty, set,
> clear);
> }
>
> +static int ttyport_set_parity(struct serdev_controller *ctrl,
> + bool enable, bool odd)
> +{
> + struct serport *serport = serdev_controller_get_drvdata(ctrl);
> + struct tty_struct *tty = serport->tty;
> + struct ktermios ktermios = tty->termios;
> +
> + ktermios.c_cflag &= ~(PARENB | PARODD);
> + if (enable)
> + ktermios.c_cflag |= PARENB;
> + if (odd)
> + ktermios.c_cflag |= PARODD;
> +
> + return tty_set_termios(tty, &ktermios);
> +}
> +
> static const struct serdev_controller_ops ctrl_ops = {
> .write_buf = ttyport_write_buf,
> .write_flush = ttyport_write_flush,
> @@ -206,6 +222,7 @@ static const struct serdev_controller_ops ctrl_ops = {
> .wait_until_sent = ttyport_wait_until_sent,
> .get_tiocm = ttyport_get_tiocm,
> .set_tiocm = ttyport_set_tiocm,
> + .set_parity = ttyport_set_parity,
> };
>
> struct device *serdev_tty_port_register(struct tty_port *port,
> diff --git a/include/linux/serdev.h b/include/linux/serdev.h
> index e69402d..8b67fcd 100644
> --- a/include/linux/serdev.h
> +++ b/include/linux/serdev.h
> @@ -90,6 +90,7 @@ struct serdev_controller_ops {
> void (*wait_until_sent)(struct serdev_controller *, long);
> int (*get_tiocm)(struct serdev_controller *);
> int (*set_tiocm)(struct serdev_controller *, unsigned int, unsigned
int);
> + int (*set_parity)(struct serdev_controller *, bool, bool);
> };
>
> /**
> @@ -298,6 +299,9 @@ static inline int serdev_device_set_rts(struct
> serdev_device *serdev, bool enabl return serdev_device_set_tiocm(serdev, 0,
> TIOCM_RTS);
> }
>
> +int serdev_device_set_parity(struct serdev_device *serdev,
> + bool enable, bool odd);
> +
> /*
> * serdev hooks into TTY core
> */
--
Regards,
Laurent Pinchart
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