^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) * Copyright (C) 2014-2015, Intel Corporation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Derived from:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * gslX68X.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright (C) 2010-2015, Shanghai Sileadinc Co.Ltd
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^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)
^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/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/acpi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/gpio/consumer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/firmware.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/input/mt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/input/touchscreen.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/pm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/pm_runtime.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/irq.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/regulator/consumer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <asm/unaligned.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define SILEAD_TS_NAME "silead_ts"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define SILEAD_REG_RESET 0xE0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define SILEAD_REG_DATA 0x80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define SILEAD_REG_TOUCH_NR 0x80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define SILEAD_REG_POWER 0xBC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define SILEAD_REG_CLOCK 0xE4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define SILEAD_REG_STATUS 0xB0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define SILEAD_REG_ID 0xFC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define SILEAD_REG_MEM_CHECK 0xB0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define SILEAD_STATUS_OK 0x5A5A5A5A
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define SILEAD_TS_DATA_LEN 44
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define SILEAD_CLOCK 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define SILEAD_CMD_RESET 0x88
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define SILEAD_CMD_START 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define SILEAD_POINT_DATA_LEN 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #define SILEAD_POINT_Y_OFF 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #define SILEAD_POINT_Y_MSB_OFF 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define SILEAD_POINT_X_OFF 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define SILEAD_POINT_X_MSB_OFF 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define SILEAD_EXTRA_DATA_MASK 0xF0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #define SILEAD_CMD_SLEEP_MIN 10000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #define SILEAD_CMD_SLEEP_MAX 20000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #define SILEAD_POWER_SLEEP 20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #define SILEAD_STARTUP_SLEEP 30
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #define SILEAD_MAX_FINGERS 10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) enum silead_ts_power {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) SILEAD_POWER_ON = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) SILEAD_POWER_OFF = 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) struct silead_ts_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) struct i2c_client *client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) struct gpio_desc *gpio_power;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) struct input_dev *input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) struct regulator_bulk_data regulators[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) char fw_name[64];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) struct touchscreen_properties prop;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) u32 max_fingers;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) u32 chip_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) struct input_mt_pos pos[SILEAD_MAX_FINGERS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) int slots[SILEAD_MAX_FINGERS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) int id[SILEAD_MAX_FINGERS];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) struct silead_fw_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) u32 offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) u32 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) static int silead_ts_request_input_dev(struct silead_ts_data *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) struct device *dev = &data->client->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) data->input = devm_input_allocate_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) if (!data->input) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) dev_err(dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) "Failed to allocate input device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) input_set_abs_params(data->input, ABS_MT_POSITION_X, 0, 4095, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) input_set_abs_params(data->input, ABS_MT_POSITION_Y, 0, 4095, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) touchscreen_parse_properties(data->input, true, &data->prop);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) input_mt_init_slots(data->input, data->max_fingers,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) INPUT_MT_TRACK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) if (device_property_read_bool(dev, "silead,home-button"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) input_set_capability(data->input, EV_KEY, KEY_LEFTMETA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) data->input->name = SILEAD_TS_NAME;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) data->input->phys = "input/ts";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) data->input->id.bustype = BUS_I2C;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) error = input_register_device(data->input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) dev_err(dev, "Failed to register input device: %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) return 0;
^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) static void silead_ts_set_power(struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) enum silead_ts_power state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) struct silead_ts_data *data = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) if (data->gpio_power) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) gpiod_set_value_cansleep(data->gpio_power, state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) msleep(SILEAD_POWER_SLEEP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) static void silead_ts_read_data(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) struct silead_ts_data *data = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) struct input_dev *input = data->input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) struct device *dev = &client->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) u8 *bufp, buf[SILEAD_TS_DATA_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) int touch_nr, softbutton, error, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) bool softbutton_pressed = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) error = i2c_smbus_read_i2c_block_data(client, SILEAD_REG_DATA,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) SILEAD_TS_DATA_LEN, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) if (error < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) dev_err(dev, "Data read error %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) if (buf[0] > data->max_fingers) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) dev_warn(dev, "More touches reported then supported %d > %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) buf[0], data->max_fingers);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) buf[0] = data->max_fingers;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) touch_nr = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) bufp = buf + SILEAD_POINT_DATA_LEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) for (i = 0; i < buf[0]; i++, bufp += SILEAD_POINT_DATA_LEN) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) softbutton = (bufp[SILEAD_POINT_Y_MSB_OFF] &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) SILEAD_EXTRA_DATA_MASK) >> 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) if (softbutton) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) * For now only respond to softbutton == 0x01, some
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) * tablets *without* a capacative button send 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) * when crossing the edges of the screen.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) if (softbutton == 0x01)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) softbutton_pressed = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) * Bits 4-7 are the touch id, note not all models have
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) * hardware touch ids so atm we don't use these.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) data->id[touch_nr] = (bufp[SILEAD_POINT_X_MSB_OFF] &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) SILEAD_EXTRA_DATA_MASK) >> 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) touchscreen_set_mt_pos(&data->pos[touch_nr], &data->prop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) get_unaligned_le16(&bufp[SILEAD_POINT_X_OFF]) & 0xfff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) get_unaligned_le16(&bufp[SILEAD_POINT_Y_OFF]) & 0xfff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) touch_nr++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) input_mt_assign_slots(input, data->slots, data->pos, touch_nr, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) for (i = 0; i < touch_nr; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) input_mt_slot(input, data->slots[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) input_mt_report_slot_state(input, MT_TOOL_FINGER, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) input_report_abs(input, ABS_MT_POSITION_X, data->pos[i].x);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) input_report_abs(input, ABS_MT_POSITION_Y, data->pos[i].y);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) dev_dbg(dev, "x=%d y=%d hw_id=%d sw_id=%d\n", data->pos[i].x,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) data->pos[i].y, data->id[i], data->slots[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) input_mt_sync_frame(input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) input_report_key(input, KEY_LEFTMETA, softbutton_pressed);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) input_sync(input);
^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) static int silead_ts_init(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) struct silead_ts_data *data = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) error = i2c_smbus_write_byte_data(client, SILEAD_REG_RESET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) SILEAD_CMD_RESET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) goto i2c_write_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) usleep_range(SILEAD_CMD_SLEEP_MIN, SILEAD_CMD_SLEEP_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) error = i2c_smbus_write_byte_data(client, SILEAD_REG_TOUCH_NR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) data->max_fingers);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) goto i2c_write_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) usleep_range(SILEAD_CMD_SLEEP_MIN, SILEAD_CMD_SLEEP_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) error = i2c_smbus_write_byte_data(client, SILEAD_REG_CLOCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) SILEAD_CLOCK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) goto i2c_write_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) usleep_range(SILEAD_CMD_SLEEP_MIN, SILEAD_CMD_SLEEP_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) error = i2c_smbus_write_byte_data(client, SILEAD_REG_RESET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) SILEAD_CMD_START);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) goto i2c_write_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) usleep_range(SILEAD_CMD_SLEEP_MIN, SILEAD_CMD_SLEEP_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) i2c_write_err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) dev_err(&client->dev, "Registers clear error %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) return error;
^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) static int silead_ts_reset(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) error = i2c_smbus_write_byte_data(client, SILEAD_REG_RESET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) SILEAD_CMD_RESET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) goto i2c_write_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) usleep_range(SILEAD_CMD_SLEEP_MIN, SILEAD_CMD_SLEEP_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) error = i2c_smbus_write_byte_data(client, SILEAD_REG_CLOCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) SILEAD_CLOCK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) goto i2c_write_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) usleep_range(SILEAD_CMD_SLEEP_MIN, SILEAD_CMD_SLEEP_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) error = i2c_smbus_write_byte_data(client, SILEAD_REG_POWER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) SILEAD_CMD_START);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) goto i2c_write_err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) usleep_range(SILEAD_CMD_SLEEP_MIN, SILEAD_CMD_SLEEP_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) i2c_write_err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) dev_err(&client->dev, "Chip reset error %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) return error;
^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 int silead_ts_startup(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) error = i2c_smbus_write_byte_data(client, SILEAD_REG_RESET, 0x00);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) dev_err(&client->dev, "Startup error %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) msleep(SILEAD_STARTUP_SLEEP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) static int silead_ts_load_fw(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) struct device *dev = &client->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) struct silead_ts_data *data = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) unsigned int fw_size, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) const struct firmware *fw;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) struct silead_fw_data *fw_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) dev_dbg(dev, "Firmware file name: %s", data->fw_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) error = firmware_request_platform(&fw, data->fw_name, dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) dev_err(dev, "Firmware request error %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) fw_size = fw->size / sizeof(*fw_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) fw_data = (struct silead_fw_data *)fw->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) for (i = 0; i < fw_size; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) error = i2c_smbus_write_i2c_block_data(client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) fw_data[i].offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) (u8 *)&fw_data[i].val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) dev_err(dev, "Firmware load error %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) release_firmware(fw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) return error ?: 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) static u32 silead_ts_get_status(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) __le32 status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) error = i2c_smbus_read_i2c_block_data(client, SILEAD_REG_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) sizeof(status), (u8 *)&status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) if (error < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) dev_err(&client->dev, "Status read error %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) return le32_to_cpu(status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) static int silead_ts_get_id(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) struct silead_ts_data *data = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) __le32 chip_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) error = i2c_smbus_read_i2c_block_data(client, SILEAD_REG_ID,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) sizeof(chip_id), (u8 *)&chip_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) if (error < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) data->chip_id = le32_to_cpu(chip_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) dev_info(&client->dev, "Silead chip ID: 0x%8X", data->chip_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) static int silead_ts_setup(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) u32 status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) * Some buggy BIOS-es bring up the chip in a stuck state where it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) * blocks the I2C bus. The following steps are necessary to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) * unstuck the chip / bus:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) * 1. Turn off the Silead chip.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) * 2. Try to do an I2C transfer with the chip, this will fail in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) * response to which the I2C-bus-driver will call:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) * i2c_recover_bus() which will unstuck the I2C-bus. Note the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) * unstuck-ing of the I2C bus only works if we first drop the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) * chip off the bus by turning it off.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) * 3. Turn the chip back on.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) * On the x86/ACPI systems were this problem is seen, step 1. and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) * 3. require making ACPI calls and dealing with ACPI Power
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) * Resources. The workaround below runtime-suspends the chip to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) * turn it off, leaving it up to the ACPI subsystem to deal with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) * this.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) if (device_property_read_bool(&client->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) "silead,stuck-controller-bug")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) pm_runtime_set_active(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) pm_runtime_enable(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) pm_runtime_allow(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) pm_runtime_suspend(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) dev_warn(&client->dev, FW_BUG "Stuck I2C bus: please ignore the next 'controller timed out' error\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) silead_ts_get_id(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) /* The forbid will also resume the device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) pm_runtime_forbid(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) pm_runtime_disable(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) silead_ts_set_power(client, SILEAD_POWER_OFF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) silead_ts_set_power(client, SILEAD_POWER_ON);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) error = silead_ts_get_id(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) dev_err(&client->dev, "Chip ID read error %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) error = silead_ts_init(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) error = silead_ts_reset(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) error = silead_ts_load_fw(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) error = silead_ts_startup(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) status = silead_ts_get_status(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) if (status != SILEAD_STATUS_OK) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) dev_err(&client->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) "Initialization error, status: 0x%X\n", status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) static irqreturn_t silead_ts_threaded_irq_handler(int irq, void *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) struct silead_ts_data *data = id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) struct i2c_client *client = data->client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) silead_ts_read_data(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) static void silead_ts_read_props(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) struct silead_ts_data *data = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) struct device *dev = &client->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) const char *str;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) error = device_property_read_u32(dev, "silead,max-fingers",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) &data->max_fingers);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) dev_dbg(dev, "Max fingers read error %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) data->max_fingers = 5; /* Most devices handle up-to 5 fingers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) error = device_property_read_string(dev, "firmware-name", &str);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) if (!error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) snprintf(data->fw_name, sizeof(data->fw_name),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) "silead/%s", str);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) dev_dbg(dev, "Firmware file name read error. Using default.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) #ifdef CONFIG_ACPI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) static int silead_ts_set_default_fw_name(struct silead_ts_data *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) const struct i2c_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) const struct acpi_device_id *acpi_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) struct device *dev = &data->client->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) if (ACPI_HANDLE(dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) acpi_id = acpi_match_device(dev->driver->acpi_match_table, dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) if (!acpi_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) snprintf(data->fw_name, sizeof(data->fw_name),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) "silead/%s.fw", acpi_id->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) for (i = 0; i < strlen(data->fw_name); i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) data->fw_name[i] = tolower(data->fw_name[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) snprintf(data->fw_name, sizeof(data->fw_name),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) "silead/%s.fw", id->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) static int silead_ts_set_default_fw_name(struct silead_ts_data *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) const struct i2c_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) snprintf(data->fw_name, sizeof(data->fw_name),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) "silead/%s.fw", id->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) static void silead_disable_regulator(void *arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) struct silead_ts_data *data = arg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) regulator_bulk_disable(ARRAY_SIZE(data->regulators), data->regulators);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) static int silead_ts_probe(struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) const struct i2c_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) struct silead_ts_data *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) struct device *dev = &client->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) if (!i2c_check_functionality(client->adapter,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) I2C_FUNC_I2C |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) I2C_FUNC_SMBUS_READ_I2C_BLOCK |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) I2C_FUNC_SMBUS_WRITE_I2C_BLOCK)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) dev_err(dev, "I2C functionality check failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) if (!data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) i2c_set_clientdata(client, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) data->client = client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) error = silead_ts_set_default_fw_name(data, id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) silead_ts_read_props(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) /* We must have the IRQ provided by DT or ACPI subsytem */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) if (client->irq <= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) data->regulators[0].supply = "vddio";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) data->regulators[1].supply = "avdd";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) error = devm_regulator_bulk_get(dev, ARRAY_SIZE(data->regulators),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) data->regulators);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) * Enable regulators at probe and disable them at remove, we need
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) * to keep the chip powered otherwise it forgets its firmware.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) error = regulator_bulk_enable(ARRAY_SIZE(data->regulators),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) data->regulators);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) error = devm_add_action_or_reset(dev, silead_disable_regulator, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) /* Power GPIO pin */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) data->gpio_power = devm_gpiod_get_optional(dev, "power", GPIOD_OUT_LOW);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) if (IS_ERR(data->gpio_power)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) if (PTR_ERR(data->gpio_power) != -EPROBE_DEFER)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) dev_err(dev, "Shutdown GPIO request failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) return PTR_ERR(data->gpio_power);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) error = silead_ts_setup(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) error = silead_ts_request_input_dev(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) error = devm_request_threaded_irq(dev, client->irq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) NULL, silead_ts_threaded_irq_handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) IRQF_ONESHOT, client->name, data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) if (error != -EPROBE_DEFER)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) dev_err(dev, "IRQ request failed %d\n", error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) static int __maybe_unused silead_ts_suspend(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) struct i2c_client *client = to_i2c_client(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) disable_irq(client->irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) silead_ts_set_power(client, SILEAD_POWER_OFF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) static int __maybe_unused silead_ts_resume(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) struct i2c_client *client = to_i2c_client(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) bool second_try = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) int error, status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) silead_ts_set_power(client, SILEAD_POWER_ON);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) retry:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) error = silead_ts_reset(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) if (second_try) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) error = silead_ts_load_fw(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) error = silead_ts_startup(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) status = silead_ts_get_status(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) if (status != SILEAD_STATUS_OK) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) if (!second_try) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) second_try = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) dev_dbg(dev, "Reloading firmware after unsuccessful resume\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) goto retry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) dev_err(dev, "Resume error, status: 0x%02x\n", status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) enable_irq(client->irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) static SIMPLE_DEV_PM_OPS(silead_ts_pm, silead_ts_suspend, silead_ts_resume);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) static const struct i2c_device_id silead_ts_id[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) { "gsl1680", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) { "gsl1688", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) { "gsl3670", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) { "gsl3675", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) { "gsl3692", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) { "mssl1680", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) MODULE_DEVICE_TABLE(i2c, silead_ts_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) #ifdef CONFIG_ACPI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) static const struct acpi_device_id silead_ts_acpi_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) { "GSL1680", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) { "GSL1688", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) { "GSL3670", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) { "GSL3675", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) { "GSL3692", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) { "MSSL1680", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) { "MSSL0001", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) { "MSSL0002", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) { "MSSL0017", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) MODULE_DEVICE_TABLE(acpi, silead_ts_acpi_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) #ifdef CONFIG_OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) static const struct of_device_id silead_ts_of_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) { .compatible = "silead,gsl1680" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) { .compatible = "silead,gsl1688" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) { .compatible = "silead,gsl3670" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) { .compatible = "silead,gsl3675" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) { .compatible = "silead,gsl3692" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) { },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) MODULE_DEVICE_TABLE(of, silead_ts_of_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) static struct i2c_driver silead_ts_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) .probe = silead_ts_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) .id_table = silead_ts_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) .name = SILEAD_TS_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) .acpi_match_table = ACPI_PTR(silead_ts_acpi_match),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) .of_match_table = of_match_ptr(silead_ts_of_match),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) .pm = &silead_ts_pm,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) module_i2c_driver(silead_ts_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) MODULE_AUTHOR("Robert Dolca <robert.dolca@intel.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) MODULE_DESCRIPTION("Silead I2C touchscreen driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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