leds: add output driver configuration for pca9633 led driver

the pca9633 leds driver can be used in open-drain or totem pole (a.k.a.
push/pull) output driver mode; default is the later

the patch allows to set the output driver mode using platform data (similar to
configuration inferface provided by the tca6507 led driver)

v2: move leds-pca9633.h to include/linux/platform_data/ (Bryan Wu)

Signed-off-by: Peter Meerwald <p.meerwald@bct-electronic.com>
Signed-off-by: Bryan Wu <bryan.wu@canonical.com>

include/linux/platform_data/leds-pca9633.h

@@ -0,0 +1,35 @@
+/*
+ * PCA9633 LED chip driver.
+ *
+ * Copyright 2012 bct electronic GmbH
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+#ifndef __LINUX_PCA9633_H
+#define __LINUX_PCA9633_H
+#include <linux/leds.h>
+
+enum pca9633_outdrv {
+	PCA9633_OPEN_DRAIN,
+	PCA9633_TOTEM_POLE, /* aka push-pull */
+};
+
+struct pca9633_platform_data {
+	struct led_platform_data leds;
+	enum pca9633_outdrv outdrv;
+};
+
+#endif /* __LINUX_PCA9633_H*/