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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>
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@ -34,8 +34,9 @@ RS485 Serial Communications
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parameters in the platform data and in ioctls.
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The device tree can also provide RS485 boot time parameters
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[#DT-bindings]_. The driver is in charge of filling this data structure
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from the values given by the device tree.
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[#DT-bindings]_. The serial core fills the struct serial_rs485 from the
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values given by the device tree when the driver calls
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uart_get_rs485_mode().
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Any driver for devices capable of working both as RS232 and RS485 should
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implement the rs485_config callback and provide rs485_supported in the
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@ -48,7 +49,7 @@ RS485 Serial Communications
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serial_rs485 structure matching to the current configuration.
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.. kernel-doc:: include/uapi/linux/serial.h
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:identifiers: serial_rs485
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:identifiers: serial_rs485 uart_get_rs485_mode
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4. Usage from user-level
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========================
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