input: Add Qualcomm pm8xxx keypad controller driver

Add Qualcomm PMIC8XXX based keypad controller driver
supporting upto 18x8 matrix configuration.

Acked-by: Dmitry Torokhov <dtor@mail.ru>
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>

1 files changed, 52 insertions, 0 deletions

diff --git a/include/linux/input/pmic8xxx-keypad.h b/include/linux/input/pmic8xxx-keypad.h
new file mode 100644
index 00000000000..5f1e2f9ad95
--- /dev/null
+++ b/include/linux/input/pmic8xxx-keypad.h
@@ -0,0 +1,52 @@
+/* Copyright (c) 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_KEYPAD_H__
+#define __PMIC8XXX_KEYPAD_H__
+
+#include <linux/input/matrix_keypad.h>
+
+#define PM8XXX_KEYPAD_DEV_NAME     "pm8xxx-keypad"
+
+/**
+ * struct pm8xxx_keypad_platform_data - platform data for keypad
+ * @keymap_data - matrix keymap data
+ * @input_name - input device name
+ * @input_phys_device - input device name
+ * @num_cols - number of columns of keypad
+ * @num_rows - number of row of keypad
+ * @debounce_ms - debounce period in milliseconds
+ * @scan_delay_ms - scan delay in milliseconds
+ * @row_hold_ns - row hold period in nanoseconds
+ * @wakeup - configure keypad as wakeup
+ * @rep - enable or disable key repeat bit
+ */
+struct pm8xxx_keypad_platform_data {
+        const struct matrix_keymap_data *keymap_data;
+
+        const char *input_name;
+        const char *input_phys_device;
+
+        unsigned int num_cols;
+        unsigned int num_rows;
+        unsigned int rows_gpio_start;
+        unsigned int cols_gpio_start;
+
+        unsigned int debounce_ms;
+        unsigned int scan_delay_ms;
+        unsigned int row_hold_ns;
+
+        bool wakeup;
+        bool rep;
+};
+
+#endif /*__PMIC8XXX_KEYPAD_H__ */