leds: Added driver for the NXP PCA9685 I2C chip

The NXP PCA9685 supports 16 channels/leds using a 12-bit PWM (4095
levels of brightness)
This driver supports configuration using platform_data.

Signed-off-by: Maximilian Güntner <maximilian.guentner@gmail.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>

1 files changed, 35 insertions, 0 deletions

diff --git a/include/linux/platform_data/leds-pca9685.h b/include/linux/platform_data/leds-pca9685.h
new file mode 100644
index 000000000000..778e9e4249cc
--- /dev/null
+++ b/include/linux/platform_data/leds-pca9685.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2013 Maximilian Güntner <maximilian.guentner@gmail.com>
+ *
+ * This file is subject to the terms and conditions of version 2 of
+ * the GNU General Public License.  See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * Based on leds-pca963x.h by Peter Meerwald <p.meerwald@bct-electronic.com>
+ *
+ * LED driver for the NXP PCA9685 PWM chip
+ *
+ */
+
+#ifndef __LINUX_PCA9685_H
+#define __LINUX_PCA9685_H
+
+#include <linux/leds.h>
+
+enum pca9685_outdrv {
+        PCA9685_OPEN_DRAIN,
+        PCA9685_TOTEM_POLE,
+};
+
+enum pca9685_inverted {
+        PCA9685_NOT_INVERTED,
+        PCA9685_INVERTED,
+};
+
+struct pca9685_platform_data {
+        struct led_platform_data leds;
+        enum pca9685_outdrv outdrv;
+        enum pca9685_inverted inverted;
+};
+
+#endif /* __LINUX_PCA9685_H */