linux-kernel - [PATCH v5 3/5] Documentation: rs485: Mention uart_get_rs485

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Message-Id: <20221019093343.9546-4-ilpo.jarvinen@linux.intel.com>
Date:   Wed, 19 Oct 2022 12:33:41 +0300
From:   Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To:     linux-serial@...r.kernel.org, Greg KH <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Bagas Sanjaya <bagasdotme@...il.com>,
        linux-doc@...r.kernel.org, Jonathan Corbet <corbet@....net>,
        linux-kernel@...r.kernel.org
Cc:     Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>
Subject: [PATCH v5 3/5] 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@...il.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
---
 Documentation/driver-api/serial/serial-rs485.rst | 7 ++++---
 1 file 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
 ========================
-- 
2.30.2