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;
}