linux-kernel - [PATCH/RFC v5 01/57] leds: Add brightness_set

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Date:	Tue, 11 Aug 2015 11:37:14 +0200
From:	Jacek Anaszewski <j.anaszewski@...sung.com>
To:	linux-leds@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, cooloney@...il.com,
	rpurdie@...ys.net, stsp@...rs.sourceforge.net,
	Jacek Anaszewski <j.anaszewski@...sung.com>,
	Andrew Lunn <andrew@...n.ch>,
	Sakari Ailus <sakari.ailus@...ux.intel.com>,
	Pavel Machek <pavel@....cz>
Subject: [PATCH/RFC v5 01/57] leds: Add brightness_set_nonblocking op

This patch adds a new brightness_set_nonblocking op to the LED subsystem.
The op is intended for drivers that set brightness in a non-blocking way,
i.e. they neither sleep nor use delays while setting brightness.

Signed-off-by: Jacek Anaszewski <j.anaszewski@...sung.com>
Cc: Bryan Wu <cooloney@...il.com>
Cc: Andrew Lunn <andrew@...n.ch>
Cc: Sakari Ailus <sakari.ailus@...ux.intel.com>
Cc: Pavel Machek <pavel@....cz>
Cc: Stas Sergeev <stsp@...rs.sourceforge.net>
---
 include/linux/leds.h |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/linux/leds.h b/include/linux/leds.h
index b122eea..c32f1b8 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -53,6 +53,9 @@ struct led_classdev {
 	/* Must not sleep, use a workqueue if needed */
 	void		(*brightness_set)(struct led_classdev *led_cdev,
 					  enum led_brightness brightness);
+	/* Intended for drivers that set brightness in a non-blocking way */
+	void (*brightness_set_nonblocking)(struct led_classdev *led_cdev,
+					  enum led_brightness brightness);
 	/*
 	 * Set LED brightness level immediately - it can block the caller for
 	 * the time required for accessing a LED device register.
-- 
1.7.9.5

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