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serdev: add method to set parity

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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>
This commit is contained in:
Ulrich Hecht
2018-01-22 18:56:32 +01:00
committed by Marcel Holtmann
parent 8c6b8eda72
commit 3a19cfcce1
3 changed files with 46 additions and 0 deletions
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10
include/linux/serdev.h
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@@ -76,6 +76,12 @@ static inline struct serdev_device_driver *to_serdev_device_driver(struct device
return container_of(d, struct serdev_device_driver, driver);
}
enum serdev_parity {
SERDEV_PARITY_NONE,
SERDEV_PARITY_EVEN,
SERDEV_PARITY_ODD,
};
/*
* serdev controller structures
*/
@@ -86,6 +92,7 @@ struct serdev_controller_ops {
int (*open)(struct serdev_controller *);
void (*close)(struct serdev_controller *);
void (*set_flow_control)(struct serdev_controller *, bool);
int (*set_parity)(struct serdev_controller *, enum serdev_parity);
unsigned int (*set_baudrate)(struct serdev_controller *, unsigned int);
void (*wait_until_sent)(struct serdev_controller *, long);
int (*get_tiocm)(struct serdev_controller *);
@@ -298,6 +305,9 @@ 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,
enum serdev_parity parity);
/*
* serdev hooks into TTY core
*/