^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) * Driver for MAXI MAX11801 - A Resistive touch screen controller with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * i2c interface
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (C) 2011 Freescale Semiconductor, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Author: Zhang Jiejing <jiejing.zhang@freescale.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Based on mcs5000_ts.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * This driver aims to support the series of MAXI touch chips max11801
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * through max11803. The main difference between these 4 chips can be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * found in the table below:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * -----------------------------------------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * | CHIP | AUTO MODE SUPPORT(FIFO) | INTERFACE |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * |----------------------------------------------------|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * | max11800 | YES | SPI |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * | max11801 | YES | I2C |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * | max11802 | NO | SPI |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * | max11803 | NO | I2C |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * ------------------------------------------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * Currently, this driver only supports max11801.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) * Data Sheet:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * http://www.maxim-ic.com/datasheet/index.mvp/id/5943
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #include <linux/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #include <linux/bitops.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) /* Register Address define */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define GENERNAL_STATUS_REG 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define GENERNAL_CONF_REG 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define MESURE_RES_CONF_REG 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define MESURE_AVER_CONF_REG 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define ADC_SAMPLE_TIME_CONF_REG 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define PANEL_SETUPTIME_CONF_REG 0x05
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define DELAY_CONVERSION_CONF_REG 0x06
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define TOUCH_DETECT_PULLUP_CONF_REG 0x07
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define AUTO_MODE_TIME_CONF_REG 0x08 /* only for max11800/max11801 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #define APERTURE_CONF_REG 0x09 /* only for max11800/max11801 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #define AUX_MESURE_CONF_REG 0x0a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define OP_MODE_CONF_REG 0x0b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) /* FIFO is found only in max11800 and max11801 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #define FIFO_RD_CMD (0x50 << 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #define MAX11801_FIFO_INT (1 << 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #define MAX11801_FIFO_OVERFLOW (1 << 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #define XY_BUFSIZE 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) #define XY_BUF_OFFSET 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) #define MAX11801_MAX_X 0xfff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #define MAX11801_MAX_Y 0xfff
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #define MEASURE_TAG_OFFSET 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) #define MEASURE_TAG_MASK (3 << MEASURE_TAG_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) #define EVENT_TAG_OFFSET 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) #define EVENT_TAG_MASK (3 << EVENT_TAG_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) #define MEASURE_X_TAG (0 << MEASURE_TAG_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) #define MEASURE_Y_TAG (1 << MEASURE_TAG_OFFSET)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) /* These are the state of touch event state machine */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) EVENT_INIT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) EVENT_MIDDLE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) EVENT_RELEASE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) EVENT_FIFO_END
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) struct max11801_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) struct i2c_client *client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) struct input_dev *input_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) static u8 read_register(struct i2c_client *client, int addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) /* XXX: The chip ignores LSB of register address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) return i2c_smbus_read_byte_data(client, addr << 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) static int max11801_write_reg(struct i2c_client *client, int addr, int data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) /* XXX: The chip ignores LSB of register address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) return i2c_smbus_write_byte_data(client, addr << 1, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) static irqreturn_t max11801_ts_interrupt(int irq, void *dev_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) struct max11801_data *data = dev_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) struct i2c_client *client = data->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) int status, i, ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) u8 buf[XY_BUFSIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) int x = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) int y = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) status = read_register(data->client, GENERNAL_STATUS_REG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) if (status & (MAX11801_FIFO_INT | MAX11801_FIFO_OVERFLOW)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) status = read_register(data->client, GENERNAL_STATUS_REG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) ret = i2c_smbus_read_i2c_block_data(client, FIFO_RD_CMD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) XY_BUFSIZE, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) * We should get 4 bytes buffer that contains X,Y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) * and event tag
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) if (ret < XY_BUFSIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) for (i = 0; i < XY_BUFSIZE; i += XY_BUFSIZE / 2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) if ((buf[i + 1] & MEASURE_TAG_MASK) == MEASURE_X_TAG)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) x = (buf[i] << XY_BUF_OFFSET) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) (buf[i + 1] >> XY_BUF_OFFSET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) else if ((buf[i + 1] & MEASURE_TAG_MASK) == MEASURE_Y_TAG)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) y = (buf[i] << XY_BUF_OFFSET) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) (buf[i + 1] >> XY_BUF_OFFSET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) if ((buf[1] & EVENT_TAG_MASK) != (buf[3] & EVENT_TAG_MASK))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) switch (buf[1] & EVENT_TAG_MASK) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) case EVENT_INIT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) case EVENT_MIDDLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) input_report_abs(data->input_dev, ABS_X, x);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) input_report_abs(data->input_dev, ABS_Y, y);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) input_event(data->input_dev, EV_KEY, BTN_TOUCH, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) input_sync(data->input_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) case EVENT_RELEASE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) input_event(data->input_dev, EV_KEY, BTN_TOUCH, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) input_sync(data->input_dev);
^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 EVENT_FIFO_END:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) static void max11801_ts_phy_init(struct max11801_data *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) struct i2c_client *client = data->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) /* Average X,Y, take 16 samples, average eight media sample */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) max11801_write_reg(client, MESURE_AVER_CONF_REG, 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) /* X,Y panel setup time set to 20us */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) max11801_write_reg(client, PANEL_SETUPTIME_CONF_REG, 0x11);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) /* Rough pullup time (2uS), Fine pullup time (10us) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) max11801_write_reg(client, TOUCH_DETECT_PULLUP_CONF_REG, 0x10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) /* Auto mode init period = 5ms , scan period = 5ms*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) max11801_write_reg(client, AUTO_MODE_TIME_CONF_REG, 0xaa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) /* Aperture X,Y set to +- 4LSB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) max11801_write_reg(client, APERTURE_CONF_REG, 0x33);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) /* Enable Power, enable Automode, enable Aperture, enable Average X,Y */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) max11801_write_reg(client, OP_MODE_CONF_REG, 0x36);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) static int max11801_ts_probe(struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) const struct i2c_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) struct max11801_data *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) struct input_dev *input_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) input_dev = devm_input_allocate_device(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) if (!data || !input_dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) dev_err(&client->dev, "Failed to allocate memory\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) data->client = client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) data->input_dev = input_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) input_dev->name = "max11801_ts";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) input_dev->id.bustype = BUS_I2C;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) input_dev->dev.parent = &client->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) __set_bit(EV_ABS, input_dev->evbit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) __set_bit(EV_KEY, input_dev->evbit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) __set_bit(BTN_TOUCH, input_dev->keybit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) input_set_abs_params(input_dev, ABS_X, 0, MAX11801_MAX_X, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) input_set_abs_params(input_dev, ABS_Y, 0, MAX11801_MAX_Y, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) max11801_ts_phy_init(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) error = devm_request_threaded_irq(&client->dev, client->irq, NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) max11801_ts_interrupt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) IRQF_TRIGGER_LOW | IRQF_ONESHOT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) "max11801_ts", data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) dev_err(&client->dev, "Failed to register interrupt\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) return error;
^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) error = input_register_device(data->input_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) static const struct i2c_device_id max11801_ts_id[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) {"max11801", 0},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) MODULE_DEVICE_TABLE(i2c, max11801_ts_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) static const struct of_device_id max11801_ts_dt_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) { .compatible = "maxim,max11801" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) { /* sentinel */ }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) MODULE_DEVICE_TABLE(of, max11801_ts_dt_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) static struct i2c_driver max11801_ts_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) .name = "max11801_ts",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) .of_match_table = max11801_ts_dt_ids,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) .id_table = max11801_ts_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) .probe = max11801_ts_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) module_i2c_driver(max11801_ts_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) MODULE_AUTHOR("Zhang Jiejing <jiejing.zhang@freescale.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) MODULE_DESCRIPTION("Touchscreen driver for MAXI MAX11801 controller");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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