linux-kernel - [RFC PATCH 5/6] serio: add serial configuration functions

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Date:   Wed, 24 Aug 2016 18:24:36 -0500
From:   Rob Herring <robh@...nel.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Marcel Holtmann <marcel@...tmann.org>,
        Jiri Slaby <jslaby@...e.com>,
        Sebastian Reichel <sre@...nel.org>,
        Arnd Bergmann <arnd@...db.de>,
        "Dr . H . Nikolaus Schaller" <hns@...delico.com>,
        Alan Cox <gnomes@...rguk.ukuu.org.uk>
Cc:     Loic Poulain <loic.poulain@...el.com>, Pavel Machek <pavel@....cz>,
        Peter Hurley <peter@...leysoftware.com>,
        NeilBrown <neil@...wn.name>,
        Linus Walleij <linus.walleij@...aro.org>,
        linux-bluetooth@...r.kernel.org, linux-serial@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [RFC PATCH 5/6] serio: add serial configuration functions

Just stub functions ATM.

Signed-off-by: Rob Herring <robh@...nel.org>
---
 include/linux/serio.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/include/linux/serio.h b/include/linux/serio.h
index 5d0b69f..5bf1754 100644
--- a/include/linux/serio.h
+++ b/include/linux/serio.h
@@ -41,6 +41,8 @@ struct serio {
 	void (*close)(struct serio *);
 	int (*start)(struct serio *);
 	void (*stop)(struct serio *);
+	void (*set_flow_control)(struct serio *, bool);
+	unsigned int (*set_baudrate)(struct serio *, unsigned int);
 
 	struct serio *parent;
 	/* Entry in parent->children list */
@@ -170,6 +172,20 @@ static inline void serio_drv_write_wakeup(struct serio *serio)
 		serio->drv->write_wakeup(serio);
 }
 
+static inline void serio_set_flow_control(struct serio *serio, bool enable)
+{
+	if (serio->set_flow_control)
+		serio->set_flow_control(serio, enable);
+}
+
+static inline unsigned int serio_set_baudrate(struct serio *serio, unsigned int speed)
+{
+	if (serio->set_baudrate)
+		return serio->set_baudrate(serio, speed);
+
+	return 0;
+}
+
 /*
  * Use the following functions to manipulate serio's per-port
  * driver-specific data.
-- 
2.9.3