input: Add support for Qualcomm PMIC8XXX power key

Add support for PMIC8XXX power key driven over dedicated
KYPD_PWR_N pin.

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Trilok Soni <tsoni@codeaurora.org>
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

include/linux/input/pmic8xxx-pwrkey.h

@@ -0,0 +1,31 @@
+/* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only 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.
+ */
+
+#ifndef __PMIC8XXX_PWRKEY_H__
+#define __PMIC8XXX_PWRKEY_H__
+
+#define PM8XXX_PWRKEY_DEV_NAME "pm8xxx-pwrkey"
+
+/**
+ * struct pm8xxx_pwrkey_platform_data - platform data for pwrkey driver
+ * @pull up:  power on register control for pull up/down configuration
+ * @kpd_trigger_delay_us: time delay for power key state change interrupt
+ *                  trigger.
+ * @wakeup: configure power key as wakeup source
+ */
+struct pm8xxx_pwrkey_platform_data  {
+	bool pull_up;
+	u32  kpd_trigger_delay_us;
+	u32  wakeup;
+};
+
+#endif /* __PMIC8XXX_PWRKEY_H__ */