linux-kernel - [PATCH v4 2/6] serial: 8250: Document uart_8250_port's ->dl

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Message-Id: <20230511121029.13128-3-ilpo.jarvinen@linux.intel.com>
Date:   Thu, 11 May 2023 15:10:25 +0300
From:   Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To:     linux-serial@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        Philippe Mathieu-Daudé <philmd@...aro.org>,
        linux-kernel@...r.kernel.org
Cc:     Niklas Schnelle <schnelle@...ux.ibm.com>,
        Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Subject: [PATCH v4 2/6] serial: 8250: Document uart_8250_port's ->dl_read/write()

Add documentation for the struct uart_8250_port divisor latch function
pointers. Documentation is in kernel doc format but don't enable kernel
doc yet as many other fields remain undocumented.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
---
 include/linux/serial_8250.h | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h
index 7b5d558e4e0c..d64e7bbe1f2f 100644
--- a/include/linux/serial_8250.h
+++ b/include/linux/serial_8250.h
@@ -90,8 +90,17 @@ struct uart_8250_em485 {
  * their own 8250 ports without registering their own
  * platform device.  Using these will make your driver
  * dependent on the 8250 driver.
+ *
+ * @dl_read: ``u32 ()(struct uart_8250_port *port)``
+ *
+ *	UART divisor latch read.
+ *
+ * @dl_write: ``void ()(struct uart_8250_port *port, u32 value)``
+ *
+ *	Write @value into UART divisor latch.
+ *
+ *	Locking: Caller holds port's lock.
  */
-
 struct uart_8250_port {
 	struct uart_port	port;
 	struct timer_list	timer;		/* "no irq" timer */
-- 
2.30.2