Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * mcs5000_ts.c - Touchscreen driver for MELFAS MCS-5000 controller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Copyright (C) 2009 Samsung Electronics Co.Ltd
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  * Author: Joonyoung Shim <jy0922.shim@samsung.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  * Based on wm97xx-core.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/irq.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/platform_data/mcs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) /* Registers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #define MCS5000_TS_STATUS		0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #define STATUS_OFFSET			0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) #define STATUS_NO			(0 << STATUS_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #define STATUS_INIT			(1 << STATUS_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #define STATUS_SENSING			(2 << STATUS_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) #define STATUS_COORD			(3 << STATUS_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) #define STATUS_GESTURE			(4 << STATUS_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) #define ERROR_OFFSET			4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) #define ERROR_NO			(0 << ERROR_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #define ERROR_POWER_ON_RESET		(1 << ERROR_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) #define ERROR_INT_RESET			(2 << ERROR_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) #define ERROR_EXT_RESET			(3 << ERROR_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) #define ERROR_INVALID_REG_ADDRESS	(8 << ERROR_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) #define ERROR_INVALID_REG_VALUE		(9 << ERROR_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) #define MCS5000_TS_OP_MODE		0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) #define RESET_OFFSET			0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) #define RESET_NO			(0 << RESET_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) #define RESET_EXT_SOFT			(1 << RESET_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) #define OP_MODE_OFFSET			1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) #define OP_MODE_SLEEP			(0 << OP_MODE_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) #define OP_MODE_ACTIVE			(1 << OP_MODE_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) #define GESTURE_OFFSET			4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) #define GESTURE_DISABLE			(0 << GESTURE_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) #define GESTURE_ENABLE			(1 << GESTURE_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) #define PROXIMITY_OFFSET		5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) #define PROXIMITY_DISABLE		(0 << PROXIMITY_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) #define PROXIMITY_ENABLE		(1 << PROXIMITY_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) #define SCAN_MODE_OFFSET		6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) #define SCAN_MODE_INTERRUPT		(0 << SCAN_MODE_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) #define SCAN_MODE_POLLING		(1 << SCAN_MODE_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) #define REPORT_RATE_OFFSET		7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) #define REPORT_RATE_40			(0 << REPORT_RATE_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) #define REPORT_RATE_80			(1 << REPORT_RATE_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) #define MCS5000_TS_SENS_CTL		0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) #define MCS5000_TS_FILTER_CTL		0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) #define PRI_FILTER_OFFSET		0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) #define SEC_FILTER_OFFSET		4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) #define MCS5000_TS_X_SIZE_UPPER		0x08
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) #define MCS5000_TS_X_SIZE_LOWER		0x09
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) #define MCS5000_TS_Y_SIZE_UPPER		0x0A
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) #define MCS5000_TS_Y_SIZE_LOWER		0x0B
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) #define MCS5000_TS_INPUT_INFO		0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) #define INPUT_TYPE_OFFSET		0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) #define INPUT_TYPE_NONTOUCH		(0 << INPUT_TYPE_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) #define INPUT_TYPE_SINGLE		(1 << INPUT_TYPE_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) #define INPUT_TYPE_DUAL			(2 << INPUT_TYPE_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) #define INPUT_TYPE_PALM			(3 << INPUT_TYPE_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) #define INPUT_TYPE_PROXIMITY		(7 << INPUT_TYPE_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) #define GESTURE_CODE_OFFSET		3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) #define GESTURE_CODE_NO			(0 << GESTURE_CODE_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) #define MCS5000_TS_X_POS_UPPER		0x11
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) #define MCS5000_TS_X_POS_LOWER		0x12
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) #define MCS5000_TS_Y_POS_UPPER		0x13
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) #define MCS5000_TS_Y_POS_LOWER		0x14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) #define MCS5000_TS_Z_POS		0x15
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) #define MCS5000_TS_WIDTH		0x16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) #define MCS5000_TS_GESTURE_VAL		0x17
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) #define MCS5000_TS_MODULE_REV		0x20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) #define MCS5000_TS_FIRMWARE_VER		0x21
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) /* Touchscreen absolute values */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) #define MCS5000_MAX_XC			0x3ff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) #define MCS5000_MAX_YC			0x3ff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) enum mcs5000_ts_read_offset {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	READ_INPUT_INFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	READ_X_POS_UPPER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	READ_X_POS_LOWER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	READ_Y_POS_UPPER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	READ_Y_POS_LOWER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	READ_BLOCK_SIZE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) /* Each client has this additional data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) struct mcs5000_ts_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	struct i2c_client *client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	struct input_dev *input_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	const struct mcs_platform_data *platform_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) static irqreturn_t mcs5000_ts_interrupt(int irq, void *dev_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	struct mcs5000_ts_data *data = dev_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	struct i2c_client *client = data->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	u8 buffer[READ_BLOCK_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	int x;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	int y;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	err = i2c_smbus_read_i2c_block_data(client, MCS5000_TS_INPUT_INFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 			READ_BLOCK_SIZE, buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 		dev_err(&client->dev, "%s, err[%d]\n", __func__, err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 		goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	switch (buffer[READ_INPUT_INFO]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	case INPUT_TYPE_NONTOUCH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 		input_report_key(data->input_dev, BTN_TOUCH, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 		input_sync(data->input_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	case INPUT_TYPE_SINGLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 		x = (buffer[READ_X_POS_UPPER] << 8) | buffer[READ_X_POS_LOWER];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 		y = (buffer[READ_Y_POS_UPPER] << 8) | buffer[READ_Y_POS_LOWER];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 		input_report_key(data->input_dev, BTN_TOUCH, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 		input_report_abs(data->input_dev, ABS_X, x);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 		input_report_abs(data->input_dev, ABS_Y, y);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 		input_sync(data->input_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	case INPUT_TYPE_DUAL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 		/* TODO */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	case INPUT_TYPE_PALM:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 		/* TODO */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	case INPUT_TYPE_PROXIMITY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 		/* TODO */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 		dev_err(&client->dev, "Unknown ts input type %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 				buffer[READ_INPUT_INFO]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)  out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) static void mcs5000_ts_phys_init(struct mcs5000_ts_data *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 				 const struct mcs_platform_data *platform_data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	struct i2c_client *client = data->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	/* Touch reset & sleep mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	i2c_smbus_write_byte_data(client, MCS5000_TS_OP_MODE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 			RESET_EXT_SOFT | OP_MODE_SLEEP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	/* Touch size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	i2c_smbus_write_byte_data(client, MCS5000_TS_X_SIZE_UPPER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 			platform_data->x_size >> 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	i2c_smbus_write_byte_data(client, MCS5000_TS_X_SIZE_LOWER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 			platform_data->x_size & 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	i2c_smbus_write_byte_data(client, MCS5000_TS_Y_SIZE_UPPER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 			platform_data->y_size >> 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	i2c_smbus_write_byte_data(client, MCS5000_TS_Y_SIZE_LOWER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 			platform_data->y_size & 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	/* Touch active mode & 80 report rate */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	i2c_smbus_write_byte_data(data->client, MCS5000_TS_OP_MODE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 			OP_MODE_ACTIVE | REPORT_RATE_80);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) static int mcs5000_ts_probe(struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 			    const struct i2c_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	const struct mcs_platform_data *pdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	struct mcs5000_ts_data *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	struct input_dev *input_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	pdata = dev_get_platdata(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	if (!pdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	if (!data) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 		dev_err(&client->dev, "Failed to allocate memory\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	data->client = client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	input_dev = devm_input_allocate_device(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	if (!input_dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 		dev_err(&client->dev, "Failed to allocate input device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	input_dev->name = "MELFAS MCS-5000 Touchscreen";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	input_dev->id.bustype = BUS_I2C;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	input_dev->dev.parent = &client->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	__set_bit(EV_ABS, input_dev->evbit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 	__set_bit(EV_KEY, input_dev->evbit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	__set_bit(BTN_TOUCH, input_dev->keybit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	input_set_abs_params(input_dev, ABS_X, 0, MCS5000_MAX_XC, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	input_set_abs_params(input_dev, ABS_Y, 0, MCS5000_MAX_YC, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	data->input_dev = input_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	if (pdata->cfg_pin)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 		pdata->cfg_pin();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	error = devm_request_threaded_irq(&client->dev, client->irq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 					  NULL, mcs5000_ts_interrupt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 					  IRQF_TRIGGER_LOW | IRQF_ONESHOT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 					  "mcs5000_ts", data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 		dev_err(&client->dev, "Failed to register interrupt\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 		return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	error = input_register_device(data->input_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 		dev_err(&client->dev, "Failed to register input device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 		return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	mcs5000_ts_phys_init(data, pdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	i2c_set_clientdata(client, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) static int __maybe_unused mcs5000_ts_suspend(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	struct i2c_client *client = to_i2c_client(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	/* Touch sleep mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	i2c_smbus_write_byte_data(client, MCS5000_TS_OP_MODE, OP_MODE_SLEEP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) static int __maybe_unused mcs5000_ts_resume(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	struct i2c_client *client = to_i2c_client(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	struct mcs5000_ts_data *data = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	const struct mcs_platform_data *pdata = dev_get_platdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	mcs5000_ts_phys_init(data, pdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) static SIMPLE_DEV_PM_OPS(mcs5000_ts_pm, mcs5000_ts_suspend, mcs5000_ts_resume);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) static const struct i2c_device_id mcs5000_ts_id[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 	{ "mcs5000_ts", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 	{ }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) MODULE_DEVICE_TABLE(i2c, mcs5000_ts_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) static struct i2c_driver mcs5000_ts_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 	.probe		= mcs5000_ts_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 	.driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 		.name = "mcs5000_ts",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 		.pm   = &mcs5000_ts_pm,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 	.id_table	= mcs5000_ts_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) module_i2c_driver(mcs5000_ts_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) /* Module information */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) MODULE_DESCRIPTION("Touchscreen driver for MELFAS MCS-5000 controller");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) MODULE_LICENSE("GPL");