Input: introduce lm8323 keypad driver

lm8323 is the keypad driver used in n810 device.

[akpm@linux-foundation.org: coding-style fixes]
[dtor@mail.ru: various cleanups]
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Reviewed-by: Trilok Soni <soni.trilok@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 46 insertions, 0 deletions

diff --git a/include/linux/i2c/lm8323.h b/include/linux/i2c/lm8323.h
new file mode 100644
index 000000000000..478d668bc590
--- /dev/null
+++ b/include/linux/i2c/lm8323.h
@@ -0,0 +1,46 @@
+/*
+ * lm8323.h - Configuration for LM8323 keypad driver.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation (version 2 of the License only).
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef __LINUX_LM8323_H
+#define __LINUX_LM8323_H
+
+#include <linux/types.h>
+
+/*
+ * Largest keycode that the chip can send, plus one,
+ * so keys can be mapped directly at the index of the
+ * LM8323 keycode instead of subtracting one.
+ */
+#define LM8323_KEYMAP_SIZE	(0x7f + 1)
+
+#define LM8323_NUM_PWMS		3
+
+struct lm8323_platform_data {
+	int debounce_time; /* Time to watch for key bouncing, in ms. */
+	int active_time; /* Idle time until sleep, in ms. */
+
+	int size_x;
+	int size_y;
+	bool repeat;
+	const unsigned short *keymap;
+
+	const char *pwm_names[LM8323_NUM_PWMS];
+
+	const char *name; /* Device name. */
+};
+
+#endif /* __LINUX_LM8323_H */