^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * I2C driver for Maxim MAX8925
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2009 Marvell International Ltd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Haojian Zhuang <haojian.zhuang@marvell.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/mfd/max8925.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #define RTC_I2C_ADDR 0x68
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #define ADC_I2C_ADDR 0x47
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) static inline int max8925_read_device(struct i2c_client *i2c,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) int reg, int bytes, void *dest)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) if (bytes > 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) ret = i2c_smbus_read_i2c_block_data(i2c, reg, bytes, dest);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) ret = i2c_smbus_read_byte_data(i2c, reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) *(unsigned char *)dest = (unsigned char)ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) static inline int max8925_write_device(struct i2c_client *i2c,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) int reg, int bytes, void *src)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) unsigned char buf[9];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) buf[0] = (unsigned char)reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) memcpy(&buf[1], src, bytes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) ret = i2c_master_send(i2c, buf, bytes + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) int max8925_reg_read(struct i2c_client *i2c, int reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) struct max8925_chip *chip = i2c_get_clientdata(i2c);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) unsigned char data = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) mutex_lock(&chip->io_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) ret = max8925_read_device(i2c, reg, 1, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) mutex_unlock(&chip->io_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) return (int)data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) EXPORT_SYMBOL(max8925_reg_read);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) int max8925_reg_write(struct i2c_client *i2c, int reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) unsigned char data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) struct max8925_chip *chip = i2c_get_clientdata(i2c);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) mutex_lock(&chip->io_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) ret = max8925_write_device(i2c, reg, 1, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) mutex_unlock(&chip->io_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) EXPORT_SYMBOL(max8925_reg_write);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) int max8925_bulk_read(struct i2c_client *i2c, int reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) int count, unsigned char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) struct max8925_chip *chip = i2c_get_clientdata(i2c);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) mutex_lock(&chip->io_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) ret = max8925_read_device(i2c, reg, count, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) mutex_unlock(&chip->io_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) EXPORT_SYMBOL(max8925_bulk_read);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) int max8925_bulk_write(struct i2c_client *i2c, int reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) int count, unsigned char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) struct max8925_chip *chip = i2c_get_clientdata(i2c);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) mutex_lock(&chip->io_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) ret = max8925_write_device(i2c, reg, count, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) mutex_unlock(&chip->io_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) EXPORT_SYMBOL(max8925_bulk_write);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) int max8925_set_bits(struct i2c_client *i2c, int reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) unsigned char mask, unsigned char data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) struct max8925_chip *chip = i2c_get_clientdata(i2c);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) unsigned char value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) mutex_lock(&chip->io_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) ret = max8925_read_device(i2c, reg, 1, &value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) value &= ~mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) value |= data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) ret = max8925_write_device(i2c, reg, 1, &value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) mutex_unlock(&chip->io_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) EXPORT_SYMBOL(max8925_set_bits);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) static const struct i2c_device_id max8925_id_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) { "max8925", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) { },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) static int max8925_dt_init(struct device_node *np, struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) struct max8925_platform_data *pdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) ret = of_property_read_u32(np, "maxim,tsc-irq", &pdata->tsc_irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) dev_err(dev, "Not found maxim,tsc-irq property\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) static int max8925_probe(struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) const struct i2c_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) struct max8925_platform_data *pdata = dev_get_platdata(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) struct max8925_chip *chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) struct device_node *node = client->dev.of_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) if (node && !pdata) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) /* parse DT to get platform data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) pdata = devm_kzalloc(&client->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) sizeof(struct max8925_platform_data),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) if (!pdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) if (max8925_dt_init(node, &client->dev, pdata))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) } else if (!pdata) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) pr_info("%s: platform data is missing\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) chip = devm_kzalloc(&client->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) sizeof(struct max8925_chip), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) if (chip == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) chip->i2c = client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) chip->dev = &client->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) i2c_set_clientdata(client, chip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) dev_set_drvdata(chip->dev, chip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) mutex_init(&chip->io_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) chip->rtc = i2c_new_dummy_device(chip->i2c->adapter, RTC_I2C_ADDR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) if (IS_ERR(chip->rtc)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) dev_err(chip->dev, "Failed to allocate I2C device for RTC\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) return PTR_ERR(chip->rtc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) i2c_set_clientdata(chip->rtc, chip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) chip->adc = i2c_new_dummy_device(chip->i2c->adapter, ADC_I2C_ADDR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) if (IS_ERR(chip->adc)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) dev_err(chip->dev, "Failed to allocate I2C device for ADC\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) i2c_unregister_device(chip->rtc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) return PTR_ERR(chip->adc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) i2c_set_clientdata(chip->adc, chip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) device_init_wakeup(&client->dev, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) max8925_device_init(chip, pdata);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) return 0;
^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 max8925_remove(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 max8925_chip *chip = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) max8925_device_exit(chip);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) i2c_unregister_device(chip->adc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) i2c_unregister_device(chip->rtc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) #ifdef CONFIG_PM_SLEEP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) static int max8925_suspend(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) struct i2c_client *client = to_i2c_client(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) struct max8925_chip *chip = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) if (device_may_wakeup(dev) && chip->wakeup_flag)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) enable_irq_wake(chip->core_irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) static int max8925_resume(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) struct i2c_client *client = to_i2c_client(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) struct max8925_chip *chip = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) if (device_may_wakeup(dev) && chip->wakeup_flag)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) disable_irq_wake(chip->core_irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) static SIMPLE_DEV_PM_OPS(max8925_pm_ops, max8925_suspend, max8925_resume);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) static const struct of_device_id max8925_dt_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) { .compatible = "maxim,max8925", },
^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)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) static struct i2c_driver max8925_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) .name = "max8925",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) .pm = &max8925_pm_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) .of_match_table = max8925_dt_ids,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) .probe = max8925_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) .remove = max8925_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) .id_table = max8925_id_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) static int __init max8925_i2c_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) ret = i2c_add_driver(&max8925_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) if (ret != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) pr_err("Failed to register MAX8925 I2C driver: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) subsys_initcall(max8925_i2c_init);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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