// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2012 Simon Budig, <simon.budig@kernelconcepts.de>
* Daniel Wagener <daniel.wagener@kernelconcepts.de> (M09 firmware support)
* Lothar Waßmann <LW@KARO-electronics.de> (DT support)
*/
/*
* This is a driver for the EDT "Polytouch" family of touch controllers
* based on the FocalTech FT5x06 line of chips.
*
* Development of this driver has been sponsored by Glyn:
* http://www.glyn.com/Products/Displays
*/
#include <linux/debugfs.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/input.h>
#include <linux/input/mt.h>
#include <linux/input/touchscreen.h>
#include <linux/irq.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/ratelimit.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
#include <asm/unaligned.h>
#define WORK_REGISTER_THRESHOLD 0x00
#define WORK_REGISTER_REPORT_RATE 0x08
#define WORK_REGISTER_GAIN 0x30
#define WORK_REGISTER_OFFSET 0x31
#define WORK_REGISTER_NUM_X 0x33
#define WORK_REGISTER_NUM_Y 0x34
#define PMOD_REGISTER_ACTIVE 0x00
#define PMOD_REGISTER_HIBERNATE 0x03
#define M09_REGISTER_THRESHOLD 0x80
#define M09_REGISTER_GAIN 0x92
#define M09_REGISTER_OFFSET 0x93
#define M09_REGISTER_NUM_X 0x94
#define M09_REGISTER_NUM_Y 0x95
#define EV_REGISTER_THRESHOLD 0x40
#define EV_REGISTER_GAIN 0x41
#define EV_REGISTER_OFFSET_Y 0x45
#define EV_REGISTER_OFFSET_X 0x46
#define NO_REGISTER 0xff
#define WORK_REGISTER_OPMODE 0x3c
#define FACTORY_REGISTER_OPMODE 0x01
#define PMOD_REGISTER_OPMODE 0xa5
#define TOUCH_EVENT_DOWN 0x00
#define TOUCH_EVENT_UP 0x01
#define TOUCH_EVENT_ON 0x02
#define TOUCH_EVENT_RESERVED 0x03
#define EDT_NAME_LEN 23
#define EDT_SWITCH_MODE_RETRIES 10
#define EDT_SWITCH_MODE_DELAY 5 /* msec */
#define EDT_RAW_DATA_RETRIES 100
#define EDT_RAW_DATA_DELAY 1000 /* usec */
#define EDT_DEFAULT_NUM_X 1024
#define EDT_DEFAULT_NUM_Y 1024
enum edt_pmode {
EDT_PMODE_NOT_SUPPORTED,
EDT_PMODE_HIBERNATE,
EDT_PMODE_POWEROFF,
};
enum edt_ver {
EDT_M06,
EDT_M09,
EDT_M12,
EV_FT,
GENERIC_FT,
};
struct edt_reg_addr {
int reg_threshold;
int reg_report_rate;
int reg_gain;
int reg_offset;
int reg_offset_x;
int reg_offset_y;
int reg_num_x;
int reg_num_y;
};
struct edt_ft5x06_ts_data {
struct i2c_client *client;
struct input_dev *input;
struct touchscreen_properties prop;
u16 num_x;
u16 num_y;
struct regulator *vcc;
struct gpio_desc *reset_gpio;
struct 