input: misc: Add maxim max77665 haptic driver support

Maxim max77665 is a companion pmic which includes haptic motor.

This patch adds the haptic motor driver

Bug 1157818
Bug 1043388
Bug 1157811

Change-Id: I5e395ea33426469496945d64df5b31c28ddafdf2
Signed-off-by: Syed Rafiuddin <srafiuddin@nvidia.com>
Reviewed-on: http://git-master/r/159459
Tested-by: Sumit Sharma <sumsharma@nvidia.com>
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>

Rebase-Id: Rde40212f28a9ed56bf8f894ec26155d7da5bb380

1 files changed, 110 insertions, 0 deletions

diff --git a/include/linux/input/max77665-haptic.h b/include/linux/input/max77665-haptic.h
new file mode 100644
index 000000000000..783cd7906f8b
--- /dev/null
+++ b/include/linux/input/max77665-haptic.h
@@ -0,0 +1,110 @@
+/*
+ * MAX77665 Haptic Driver
+ *
+ * Copyright (c) 2012, NVIDIA Corporation, All Rights Reserved
+ * Author: Syed Rafiuddin <srafiuddin@nvidia.com>
+ *
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#ifndef _LINUX_INPUT_MAX77665_HAPTIC_H
+#define _LINUX_INPUT_MAX77665_HAPTIC_H
+
+#include <linux/platform_device.h>
+#include <linux/mfd/max77665.h>
+
+#define MAX77665_HAPTIC_REG_GENERAL	0x00
+#define MAX77665_HAPTIC_REG_CONF1	0x01
+#define MAX77665_HAPTIC_REG_CONF2	0x02
+#define MAX77665_HAPTIC_REG_DRVCONF	0x03
+#define MAX77665_HAPTIC_REG_CYCLECONF1	0x04
+#define MAX77665_HAPTIC_REG_CYCLECONF2	0x05
+#define MAX77665_HAPTIC_REG_SIGCONF1	0x06
+#define MAX77665_HAPTIC_REG_SIGCONF2	0x07
+#define MAX77665_HAPTIC_REG_SIGCONF3	0x08
+#define MAX77665_HAPTIC_REG_SIGCONF4	0x09
+#define MAX77665_HAPTIC_REG_SIGDC1	0x0a
+#define MAX77665_HAPTIC_REG_SIGDC2	0x0b
+#define MAX77665_HAPTIC_REG_SIGPWMDC1	0x0c
+#define MAX77665_HAPTIC_REG_SIGPWMDC2	0x0d
+#define MAX77665_HAPTIC_REG_SIGPWMDC3	0x0e
+#define MAX77665_HAPTIC_REG_SIGPWMDC4	0x0f
+#define MAX77665_HAPTIC_REG_MTR_REV	0x10
+#define MAX77665_HAPTIC_REG_END		0x11
+
+#define MAX77665_PMIC_REG_LSCNFG	0x2B
+
+/* Haptic configuration 1 register */
+#define MAX77665_INVERT_SHIFT		7
+#define MAX77665_CONT_MODE_SHIFT	6
+#define MAX77665_MOTOR_STRT_SHIFT	3
+
+/* Haptic configuration 2 register */
+#define MAX77665_MOTOR_TYPE_SHIFT	7
+#define MAX77665_ENABLE_SHIFT		6
+#define MAX77665_MODE_SHIFT		5
+
+/* Haptic driver configuration register */
+#define MAX77665_CYCLE_SHIFT		6
+#define MAX77665_SIG_PERIOD_SHIFT	4
+#define MAX77665_SIG_DUTY_SHIFT		2
+#define MAX77665_PWM_DUTY_SHIFT		0
+
+enum max77665_haptic_motor_type {
+	MAX77665_HAPTIC_ERM,
+	MAX77665_HAPTIC_LRA,
+};
+
+enum max77665_haptic_pulse_mode {
+	MAX77665_EXTERNAL_MODE,
+	MAX77665_INTERNAL_MODE,
+};
+
+enum max77665_haptic_pwm_divisor {
+	MAX77665_PWM_DIVISOR_32,
+	MAX77665_PWM_DIVISOR_64,
+	MAX77665_PWM_DIVISOR_128,
+	MAX77665_PWM_DIVISOR_256,
+};
+
+enum max77665_haptic_invert {
+	MAX77665_INVERT_OFF,
+	MAX77665_INVERT_ON,
+};
+
+enum max77665_haptic_continous_mode {
+	MAX77665_NORMAL_MODE,
+	MAX77665_CONT_MODE,
+};
+
+struct max77665_haptic_platform_data {
+	int pwm_channel_id;
+	int pwm_period;
+
+	enum max77665_haptic_motor_type type;
+	enum max77665_haptic_pulse_mode mode;
+	enum max77665_haptic_pwm_divisor pwm_divisor;
+	enum max77665_haptic_invert invert;
+	enum max77665_haptic_continous_mode cont_mode;
+
+	int internal_mode_pattern;
+	int pattern_cycle;
+	int pattern_signal_period;
+	int feedback_duty_cycle;
+	int motor_startup_val;
+	int scf_val;
+};
+
+#endif