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| author | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2022-10-19 11:33:41 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-11-03 03:43:05 +0100 |
| commit | 0f4648a1a6d36487e4134a4fd75d8cdae0cd6bf4 (patch) | |
| tree | 5140e5e0234f4d168f9723e7b9aafb676762caf1 /Documentation/driver-api | |
| parent | Documentation: rs485: Link reference properly (diff) | |
| download | linux-0f4648a1a6d36487e4134a4fd75d8cdae0cd6bf4.tar.xz linux-0f4648a1a6d36487e4134a4fd75d8cdae0cd6bf4.zip | |
Documentation: rs485: Mention uart_get_rs485_mode()
Add to rs485 documentation that serial core prepares the struct
serial_rs485 when uart_get_rs485_mode() is called. Remove the wrong
claim that the driver must fill it by itself.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20221019093343.9546-4-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/driver-api')
| -rw-r--r-- | Documentation/driver-api/serial/serial-rs485.rst | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/Documentation/driver-api/serial/serial-rs485.rst b/Documentation/driver-api/serial/serial-rs485.rst index 513758a702a6..ee34c8e1e56e 100644 --- a/Documentation/driver-api/serial/serial-rs485.rst +++ b/Documentation/driver-api/serial/serial-rs485.rst @@ -34,8 +34,9 @@ RS485 Serial Communications parameters in the platform data and in ioctls. The device tree can also provide RS485 boot time parameters - [#DT-bindings]_. The driver is in charge of filling this data structure - from the values given by the device tree. + [#DT-bindings]_. The serial core fills the struct serial_rs485 from the + values given by the device tree when the driver calls + uart_get_rs485_mode(). Any driver for devices capable of working both as RS232 and RS485 should implement the rs485_config callback and provide rs485_supported in the @@ -48,7 +49,7 @@ RS485 Serial Communications serial_rs485 structure matching to the current configuration. .. kernel-doc:: include/uapi/linux/serial.h - :identifiers: serial_rs485 + :identifiers: serial_rs485 uart_get_rs485_mode 4. Usage from user-level ======================== |