static unsigned int max77843_rgb_get(struct led_classdev *led_cdev) { const struct device *parent = led_cdev->dev->parent; struct max77843_rgb *max77843_rgb = dev_get_drvdata(parent); struct device *dev; int n; int ret; u8 value; pr_info("leds-max77843-rgb: %s\n", __func__); ret = max77843_rgb_number(led_cdev, &max77843_rgb); if (IS_ERR_VALUE(ret)) { dev_err(led_cdev->dev, "max77843_rgb_number() returns %d.\n", ret); return 0; } n = ret; dev = led_cdev->dev; /* Get status */ ret = max77843_read_reg(max77843_rgb->i2c, MAX77843_RGBLED_REG_LEDEN, &value); if (IS_ERR_VALUE(ret)) { dev_err(dev, "can't read LEDEN : %d\n", ret); return 0; } if (!(value & (1 << n))) return LED_OFF; /* Get current */ ret = max77843_read_reg(max77843_rgb->i2c, MAX77843_RGBLED_REG_LED0BRT + n, &value); if (IS_ERR_VALUE(ret)) { dev_err(dev, "can't read LED0BRT : %d\n", ret); return 0; } return value; }
static int max77843_freeze(struct device *dev) { struct i2c_client *i2c = container_of(dev, struct i2c_client, dev); struct max77843_dev *max77843 = i2c_get_clientdata(i2c); int i; for (i = 0; i < ARRAY_SIZE(max77843_dumpaddr_pmic); i++) max77843_read_reg(i2c, max77843_dumpaddr_pmic[i], &max77843->reg_pmic_dump[i]); for (i = 0; i < ARRAY_SIZE(max77843_dumpaddr_muic); i++) max77843_read_reg(i2c, max77843_dumpaddr_muic[i], &max77843->reg_muic_dump[i]); for (i = 0; i < ARRAY_SIZE(max77843_dumpaddr_led); i++) max77843_read_reg(i2c, max77843_dumpaddr_led[i], &max77843->reg_led_dump[i]); disable_irq(max77843->irq); return 0; }
int max77843_irq_init(struct max77843_dev *max77843) { int i; int cur_irq; int ret; u8 i2c_data; pr_info("func: %s, irq_gpio: %d, irq_base: %d\n", __func__, max77843->irq_gpio, max77843->irq_base); if (!max77843->irq_gpio) { dev_warn(max77843->dev, "No interrupt specified.\n"); max77843->irq_base = 0; return 0; } if (!max77843->irq_base) { dev_err(max77843->dev, "No interrupt base specified.\n"); return 0; } mutex_init(&max77843->irqlock); max77843->irq = gpio_to_irq(max77843->irq_gpio); ret = gpio_request(max77843->irq_gpio, "if_pmic_irq"); if (ret) { dev_err(max77843->dev, "%s: failed requesting gpio %d\n", __func__, max77843->irq_gpio); return ret; } gpio_direction_input(max77843->irq_gpio); gpio_free(max77843->irq_gpio); /* Mask individual interrupt sources */ for (i = 0; i < MAX77843_IRQ_GROUP_NR; i++) { struct i2c_client *i2c; /* MUIC IRQ 0:MASK 1:NOT MASK */ /* Other IRQ 1:MASK 0:NOT MASK */ if (i >= MAX77843_MUIC_INT1 && i <= MAX77843_MUIC_INT3) { max77843->irq_masks_cur[i] = 0x00; max77843->irq_masks_cache[i] = 0x00; } else { max77843->irq_masks_cur[i] = 0xff; max77843->irq_masks_cache[i] = 0xff; } i2c = get_i2c(max77843, i); if (IS_ERR_OR_NULL(i2c)) continue; if (max77843_mask_reg[i] == MAX77843_REG_INVALID) continue; if (i >= MAX77843_MUIC_INT1 && i <= MAX77843_MUIC_INT3) max77843_write_reg(i2c, max77843_mask_reg[i], 0x00); else max77843_write_reg(i2c, max77843_mask_reg[i], 0xff); } /* Register with genirq */ for (i = 0; i < MAX77843_IRQ_NR; i++) { cur_irq = i + max77843->irq_base; irq_set_chip_data(cur_irq, max77843); irq_set_chip_and_handler(cur_irq, &max77843_irq_chip, handle_edge_irq); irq_set_nested_thread(cur_irq, 1); #ifdef CONFIG_ARM set_irq_flags(cur_irq, IRQF_VALID); #else irq_set_noprobe(cur_irq); #endif } /* Unmask max77843 interrupt */ ret = max77843_read_reg(max77843->i2c, MAX77843_PMIC_REG_INTSRC_MASK, &i2c_data); if (ret) { dev_err(max77843->dev, "%s: fail to read muic reg\n", __func__); return ret; } i2c_data &= ~(MAX77843_IRQSRC_CHG); /* Unmask charger interrupt */ i2c_data &= ~(MAX77843_IRQSRC_FG); /* Unmask fuelgauge interrupt */ i2c_data &= ~(MAX77843_IRQSRC_MUIC); /* Unmask muic interrupt */ max77843_write_reg(max77843->i2c, MAX77843_PMIC_REG_INTSRC_MASK, i2c_data); ret = request_threaded_irq(max77843->irq, NULL, max77843_irq_thread, IRQF_TRIGGER_FALLING | IRQF_ONESHOT, "max77843-irq", max77843); if (ret) { dev_err(max77843->dev, "Failed to request IRQ %d: %d\n", max77843->irq, ret); return ret; } return 0; }
static irqreturn_t max77843_irq_thread(int irq, void *data) { struct max77843_dev *max77843 = data; u8 irq_reg[MAX77843_IRQ_GROUP_NR] = {0}; u8 irq_src; int ret; int i; pr_debug("%s: irq gpio pre-state(0x%02x)\n", __func__, gpio_get_value(max77843->irq_gpio)); clear_retry: ret = max77843_read_reg(max77843->i2c, MAX77843_PMIC_REG_INTSRC, &irq_src); if (ret < 0) { dev_err(max77843->dev, "Failed to read interrupt source: %d\n", ret); return IRQ_NONE; } pr_info("%s: interrupt source(0x%02x)\n", __func__, irq_src); if (irq_src & MAX77843_IRQSRC_TOP) { /* TOPSYS_INT */ ret = max77843_read_reg(max77843->i2c, MAX77843_PMIC_REG_TOPSYS_INT, &irq_reg[MAX77843_TOPSYS_INT]); pr_info("%s: topsys interrupt(0x%02x)\n", __func__, irq_reg[MAX77843_TOPSYS_INT]); } if (irq_src & MAX77843_IRQSRC_CHG) { /* CHG_INT */ ret = max77843_read_reg(max77843->charger, MAX77843_CHG_REG_INT, &irq_reg[MAX77843_CHG_INT]); pr_info("%s: charger interrupt(0x%02x)\n", __func__, irq_reg[MAX77843_CHG_INT]); /* mask chgin to prevent chgin infinite interrupt * chgin is unmasked chgin isr */ if (irq_reg[MAX77843_CHG_INT] & max77843_irqs[MAX77843_CHG_IRQ_CHGIN_I].mask) { max77843_update_reg(max77843->i2c, MAX77843_CHG_REG_INT_MASK, MAX77843_CHGIN_IM, MAX77843_CHGIN_IM); } } if (irq_src & MAX77843_IRQSRC_FG) { pr_info("%s: fuelgauge interrupt, IRQ_BASE(%d), NESTED_IRQ(%d)\n", __func__, max77843->irq_base, max77843->irq_base + MAX77843_FG_IRQ_ALERT); handle_nested_irq(max77843->irq_base + MAX77843_FG_IRQ_ALERT); return IRQ_HANDLED; } if (irq_src & MAX77843_IRQSRC_MUIC) { /* MUIC INT1 ~ INT3 */ max77843_bulk_read(max77843->muic, MAX77843_MUIC_REG_INT1, MAX77843_NUM_IRQ_MUIC_REGS, &irq_reg[MAX77843_MUIC_INT1]); pr_info("%s: muic interrupt(0x%02x, 0x%02x, 0x%02x)\n", __func__, irq_reg[MAX77843_MUIC_INT1], irq_reg[MAX77843_MUIC_INT2], irq_reg[MAX77843_MUIC_INT3]); } pr_debug("%s: irq gpio post-state(0x%02x)\n", __func__, gpio_get_value(max77843->irq_gpio)); if (gpio_get_value(max77843->irq_gpio) == 0) { pr_warn("%s: irq_gpio is not High!\n", __func__); goto clear_retry; } #if 0 /* Apply masking */ for (i = 0; i < MAX77843_IRQ_GROUP_NR; i++) { if (i >= MAX77843_MUIC_INT1 && i <= MAX77843_MUIC_INT3) irq_reg[i] &= max77843->irq_masks_cur[i]; else irq_reg[i] &= ~max77843->irq_masks_cur[i]; } #endif /* Report */ for (i = 0; i < MAX77843_IRQ_NR; i++) { if (irq_reg[max77843_irqs[i].group] & max77843_irqs[i].mask) handle_nested_irq(max77843->irq_base + i); } return IRQ_HANDLED; }
static irqreturn_t max77843_irq_thread(int irq, void *data) { struct max77843_dev *max77843 = data; u8 irq_reg[MAX77843_IRQ_GROUP_NR] = {0}; u8 tmp_irq_reg[MAX77843_IRQ_GROUP_NR] = {}; #if defined(CONFIG_MUIC_MAX77843_SUPPORT_AFC_CHARGER) u8 tmp_irq_mask_reg[MAX77843_IRQ_GROUP_NR] = {}; #endif /* CONFIG_MUIC_MAX77843_SUPPORT_AFC_CHARGER */ static int check_num; u8 irq_src; int i, ret; pr_debug("%s: irq gpio pre-state(0x%02x)\n", __func__, gpio_get_value(max77843->irq_gpio)); ret = max77843_read_reg(max77843->i2c, MAX77843_PMIC_REG_INTSRC, &irq_src); if (ret) { pr_err("%s:%s Failed to read interrupt source: %d\n", MFD_DEV_NAME, __func__, ret); return IRQ_NONE; } #ifdef BATTERY_LOG_MESSAGE pr_info("%s: interrupt source(0x%02x)\n", __func__, irq_src); #endif if (irq_src & MAX77843_IRQSRC_CHG) { /* CHG_INT */ ret = max77843_read_reg(max77843->charger, MAX77843_CHG_REG_CHG_INT, &irq_reg[CHG_INT]); pr_info("%s: charger interrupt(0x%02x)\n", __func__, irq_reg[CHG_INT]); /* mask chgin to prevent chgin infinite interrupt * chgin is unmasked chgin isr */ if (irq_reg[CHG_INT] & max77843_irqs[MAX77843_CHG_IRQ_CHGIN_I].mask) { u8 reg_data; max77843_read_reg(max77843->charger, MAX77843_CHG_REG_CHG_INT_MASK, ®_data); reg_data |= (1 << 6); max77843_write_reg(max77843->charger, MAX77843_CHG_REG_CHG_INT_MASK, reg_data); } } if (irq_src & MAX77843_IRQSRC_FG) { pr_info("[%s] fuelgauge interrupt\n", __func__); pr_info("[%s]IRQ_BASE(%d), NESTED_IRQ(%d)\n", __func__, max77843->irq_base, max77843->irq_base + MAX77843_FG_IRQ_ALERT); handle_nested_irq(max77843->irq_base + MAX77843_FG_IRQ_ALERT); return IRQ_HANDLED; } if (irq_src & MAX77843_IRQSRC_TOP) { /* SYS_INT */ ret = max77843_read_reg(max77843->i2c, MAX77843_PMIC_REG_SYSTEM_INT, &irq_reg[SYS_INT]); pr_info("%s: topsys interrupt(0x%02x)\n", __func__, irq_reg[SYS_INT]); } if (irq_src & MAX77843_IRQSRC_MUIC) { /* MUIC INT1 ~ INT3 */ ret = max77843_bulk_read(max77843->muic, MAX77843_MUIC_REG_INT1, MAX77843_NUM_IRQ_MUIC_REGS, &tmp_irq_reg[MUIC_INT1]); if (ret) { pr_err("%s:%s Failed to read interrupt source: %d\n", MFD_DEV_NAME, __func__, ret); return IRQ_NONE; } #if defined(CONFIG_MUIC_MAX77843_SUPPORT_AFC_CHARGER) max77843_bulk_read(max77843->muic, MAX77843_MUIC_REG_INTMASK1, MAX77843_NUM_IRQ_MUIC_REGS, &tmp_irq_mask_reg[MUIC_INT1]); for (i = MUIC_INT1; i < MAX77843_IRQ_GROUP_NR; i++) tmp_irq_reg[i] &= tmp_irq_mask_reg[i]; #endif /* CONFIG_MUIC_MAX77843_SUPPORT_AFC_CHARGER */ /* Or temp irq register to irq register for if it retries */ for (i = MUIC_INT1; i <= MUIC_MAX_INT; i++) irq_reg[i] |= tmp_irq_reg[i]; pr_info("%s: muic interrupt(0x%02x, 0x%02x, 0x%02x)\n", __func__, irq_reg[MUIC_INT1], irq_reg[MUIC_INT2], irq_reg[MUIC_INT3]); /* for debug */ if ((irq_reg[MUIC_INT1] == 0) && (irq_reg[MUIC_INT2] == 0) && (irq_reg[MUIC_INT3] == 0)) { pr_info("%s: irq gpio post-state(0x%02x)\n", __func__, gpio_get_value(max77843->irq_gpio)); if (check_num >= 15) { max77843_muic_read_register(max77843->muic); panic("max77843 muic interrupt gpio Err!\n"); } check_num++; } else check_num = 0; } /* Apply masking */ for (i = 0; i < MAX77843_IRQ_GROUP_NR; i++) { if (i >= MUIC_INT1 && i <= MUIC_MAX_INT) irq_reg[i] &= max77843->irq_masks_cur[i]; else irq_reg[i] &= ~max77843->irq_masks_cur[i]; } /* Report */ for (i = 0; i < MAX77843_IRQ_NR; i++) { if (irq_reg[max77843_irqs[i].group] & max77843_irqs[i].mask) handle_nested_irq(max77843->irq_base + i); } return IRQ_HANDLED; }
static int max77843_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct max77843_dev *max77843; struct max77843_platform_data *pdata; u8 reg_data; int ret = 0; dev_info(&i2c->dev, "%s\n", __func__); max77843 = kzalloc(sizeof(struct max77843_dev), GFP_KERNEL); if (max77843 == NULL) return -ENOMEM; if (i2c->dev.of_node) { pdata = devm_kzalloc(&i2c->dev, sizeof(struct max77843_platform_data), GFP_KERNEL); if (!pdata) { dev_err(&i2c->dev, "Failed to allocate memory \n"); ret = -ENOMEM; goto err; } ret = of_max77843_dt(&i2c->dev, pdata); if (ret < 0){ dev_err(&i2c->dev, "Failed to get device of_node \n"); goto err; } /*Filling the platform data*/ pdata->muic_data = &max77843_muic; #ifdef CONFIG_REGULATOR_MAX77843 pdata->num_regulators = MAX77843_REG_MAX; pdata->regulators = max77843_regulators; #endif #ifdef CONFIG_LEDS_MAX77843 pdata->led_data = &max77843_led_pdata; #endif /*pdata update to other modules*/ i2c->dev.platform_data = pdata; } else pdata = i2c->dev.platform_data; i2c_set_clientdata(i2c, max77843); max77843->dev = &i2c->dev; max77843->i2c = i2c; max77843->irq = i2c->irq; if (pdata) { max77843->pdata = pdata; max77843->irq_base = irq_alloc_descs(-1, 0, MAX77843_IRQ_NR, -1); if (max77843->irq_base < 0) { pr_err("%s: irq_alloc_descs Fail ret(%d)\n", __func__, max77843->irq_base); ret = -EINVAL; } else { pdata->irq_base = max77843->irq_base; } max77843->irq_gpio = pdata->irq_gpio; max77843->wakeup = pdata->wakeup; gpio_tlmm_config(GPIO_CFG(max77843->irq_gpio, 0, GPIO_CFG_INPUT, GPIO_CFG_NO_PULL, GPIO_CFG_2MA), GPIO_CFG_DISABLE); } else { ret = -EINVAL; goto err; } mutex_init(&max77843->iolock); max77843->muic = i2c_new_dummy(i2c->adapter, I2C_ADDR_MUIC); i2c_set_clientdata(max77843->muic, max77843); max77843->charger = i2c_new_dummy(i2c->adapter, I2C_ADDR_CHG); i2c_set_clientdata(max77843->charger, max77843); max77843->fuelgauge = i2c_new_dummy(i2c->adapter, I2C_ADDR_FG); i2c_set_clientdata(max77843->fuelgauge, max77843); max77843->led = i2c_new_dummy(i2c->adapter, I2C_ADDR_LED); i2c_set_clientdata(max77843->led, max77843); if (max77843_read_reg(max77843->i2c, MAX77843_PMIC_REG_PMICID, ®_data) < 0) { dev_err(max77843->dev, "device not found on this channel (this is not an error)\n"); ret = -ENODEV; } else { /* print rev */ max77843->pmic_rev = (reg_data & 0x7); max77843->pmic_ver = ((reg_data & 0xF8) >> 0x3); pr_info("%s: device found: rev.0x%x, ver.0x%x\n", __func__, max77843->pmic_rev, max77843->pmic_ver); } ret = max77843_irq_init(max77843); if (ret < 0) goto err_irq_init; ret = mfd_add_devices(max77843->dev, -1, max77843_devs, ARRAY_SIZE(max77843_devs), NULL, 0, NULL); if (ret < 0) goto err_mfd; device_init_wakeup(max77843->dev, pdata->wakeup); #if defined(CONFIG_ADC_ONESHOT) /* Set oneshot mode */ max77843_update_reg(max77843->muic, MAX77843_MUIC_REG_CTRL4, MAX77843_ADC_ONESHOT<<MAX77843_CTRL4_ADCMODE_SHIFT, MAX77843_CTRL4_ADCMODE_MASK); #else /* Set continuous mode */ max77843_update_reg(max77843->muic, MAX77843_MUIC_REG_CTRL4, MAX77843_ADC_ALWAYS<<MAX77843_CTRL4_ADCMODE_SHIFT, MAX77843_CTRL4_ADCMODE_MASK); #endif return ret; err_mfd: mfd_remove_devices(max77843->dev); max77843_irq_exit(max77843); err_irq_init: i2c_unregister_device(max77843->muic); i2c_unregister_device(max77843->led); err: kfree(max77843); return ret; }