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authorAntonio Ospite <ospite@studenti.unina.it>2009-12-07 17:08:13 +0300
committerRichard Purdie <rpurdie@linux.intel.com>2009-12-17 14:27:09 +0300
commitd4cc6a2eee98faebf2c7d3ebc4b35541c1d47d21 (patch)
tree7700367133fbb2041939a0fc734340f24d1f2113 /include/linux/leds-regulator.h
parent3c0f6e1eddeddd95ed04d4a7f0e55ab0aa99adf9 (diff)
downloadlinux-d4cc6a2eee98faebf2c7d3ebc4b35541c1d47d21.tar.xz
leds: Add LED class driver for regulator driven LEDs.
This driver provides an interface for controlling LEDs (or vibrators) connected to PMICs for which there is a regulator framework driver. This driver can be used, for instance, to control vibrator on all Motorola EZX phones using the pcap-regulator driver services. Signed-off-by: Antonio Ospite <ospite@studenti.unina.it> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
Diffstat (limited to 'include/linux/leds-regulator.h')
-rw-r--r--include/linux/leds-regulator.h46
1 files changed, 46 insertions, 0 deletions
diff --git a/include/linux/leds-regulator.h b/include/linux/leds-regulator.h
new file mode 100644
index 000000000000..5a8eb389aab8
--- /dev/null
+++ b/include/linux/leds-regulator.h
@@ -0,0 +1,46 @@
+/*
+ * leds-regulator.h - platform data structure for regulator driven LEDs.
+ *
+ * Copyright (C) 2009 Antonio Ospite <ospite@studenti.unina.it>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef __LINUX_LEDS_REGULATOR_H
+#define __LINUX_LEDS_REGULATOR_H
+
+/*
+ * Use "vled" as supply id when declaring the regulator consumer:
+ *
+ * static struct regulator_consumer_supply pcap_regulator_VVIB_consumers [] = {
+ * { .dev_name = "leds-regulator.0", supply = "vled" },
+ * };
+ *
+ * If you have several regulator driven LEDs, you can append a numerical id to
+ * .dev_name as done above, and use the same id when declaring the platform
+ * device:
+ *
+ * static struct led_regulator_platform_data a780_vibrator_data = {
+ * .name = "a780::vibrator",
+ * };
+ *
+ * static struct platform_device a780_vibrator = {
+ * .name = "leds-regulator",
+ * .id = 0,
+ * .dev = {
+ * .platform_data = &a780_vibrator_data,
+ * },
+ * };
+ */
+
+#include <linux/leds.h>
+
+struct led_regulator_platform_data {
+ char *name; /* LED name as expected by LED class */
+ enum led_brightness brightness; /* initial brightness value */
+};
+
+#endif /* __LINUX_LEDS_REGULATOR_H */