static int qpnp_flash_led_module_disable(struct qpnp_flash_led *led,
struct flash_node_data *flash_node)
{
int rc;
u8 val, tmp;
rc = spmi_ext_register_readl(led->spmi_dev->ctrl,
led->spmi_dev->sid,
FLASH_LED_STROBE_CTRL(led->base),
&val, 1);
if (rc) {
dev_err(&led->spmi_dev->dev,
"Unable to read module enable reg\n");
return -EINVAL;
}
tmp = ~flash_node->trigger & val;
if (!tmp) {
if (flash_node->type == TORCH) {
rc = qpnp_led_masked_write(led->spmi_dev,
FLASH_LED_UNLOCK_SECURE(led->base),
FLASH_SECURE_MASK, FLASH_UNLOCK_SECURE);
if (rc) {
dev_err(&led->spmi_dev->dev,
"Secure reg write failed\n");
return -EINVAL;
}
rc = qpnp_led_masked_write(led->spmi_dev,
FLASH_TORCH(led->base),
FLASH_TORCH_MASK, FLASH_LED_TORCH_DISABLE);
if (rc) {
dev_err(&led->spmi_dev->dev,
"Torch reg write failed\n");
return -EINVAL;
}
}
rc = qpnp_led_masked_write(led->spmi_dev,
FLASH_MODULE_ENABLE_CTRL(led->base),
FLASH_MODULE_ENABLE_MASK, FLASH_LED_DISABLE);
if (rc) {
dev_err(&led->spmi_dev->dev, "Module disable failed\n");
return -EINVAL;
}
} else {
rc = qpnp_led_masked_write(led->spmi_dev,
FLASH_MODULE_ENABLE_CTRL(led->base),
flash_node->enable, flash_node->enable);
if (rc) {
dev_err(&led->spmi_dev->dev, "Module disable failed\n");
return -EINVAL;
}
}
return 0;
}
static void qpnp_flash_led_work(struct work_struct *work)
{
struct flash_node_data *flash_node = container_of(work,
struct flash_node_data, work);
struct qpnp_flash_led *led =
dev_get_drvdata(&flash_node->spmi_dev->dev);
int rc, brightness = flash_node->cdev.brightness;
int max_curr_avail_ma;
u8 val;
mutex_lock(&led->flash_led_lock);
if (!brightness)
goto turn_off;
if (brightness < FLASH_LED_MIN_CURRENT_MA)
brightness = FLASH_LED_MIN_CURRENT_MA;
flash_node->prgm_current = brightness;
if (flash_node->boost_regulator && !flash_node->flash_on) {
if (regulator_count_voltages(flash_node->boost_regulator) > 0) {
rc = regulator_set_voltage(flash_node->boost_regulator,
flash_node->boost_voltage_max,
flash_node->boost_voltage_max);
if (rc) {
dev_err(&led->spmi_dev->dev,
"boost regulator set voltage failed\n");
mutex_unlock(&led->flash_led_lock);
return;
}
}
rc = regulator_enable(flash_node->boost_regulator);
if (rc) {
dev_err(&led->spmi_dev->dev,
"Boost regulator enablement failed\n");
goto error_regulator_enable;
}
}
if (flash_node->type == TORCH) {
rc = qpnp_led_masked_write(led->spmi_dev,
FLASH_LED_UNLOCK_SECURE(led->base),
FLASH_SECURE_MASK, FLASH_UNLOCK_SECURE);
if (rc) {
dev_err(&led->spmi_dev->dev,
"Secure reg write failed\n");
goto exit_flash_led_work;
}
rc = qpnp_led_masked_write(led->spmi_dev,
FLASH_TORCH(led->base),
FLASH_TORCH_MASK, FLASH_LED_TORCH_ENABLE);
if (rc) {
dev_err(&led->spmi_dev->dev,
"Torch reg write failed\n");
goto exit_flash_led_work;
}
val = (u8)(flash_node->prgm_current * FLASH_TORCH_MAX_LEVEL
/ flash_node->max_current);
rc = qpnp_led_masked_write(led->spmi_dev,
flash_node->current_addr,
FLASH_CURRENT_MASK, val);
if (rc) {
dev_err(&led->spmi_dev->dev,
"Current reg write failed\n");
goto exit_flash_led_work;
}
rc = qpnp_led_masked_write(led->spmi_dev,
FLASH_MAX_CURRENT(led->base),
FLASH_CURRENT_MASK, FLASH_TORCH_MAX_LEVEL);
if (rc) {
dev_err(&led->spmi_dev->dev,
"Max current reg write failed\n");
goto exit_flash_led_work;
}
rc = qpnp_led_masked_write(led->spmi_dev,
FLASH_MODULE_ENABLE_CTRL(led->base),
FLASH_MODULE_ENABLE | flash_node->enable,
FLASH_MODULE_ENABLE | flash_node->enable);
if (rc) {
dev_err(&led->spmi_dev->dev,
"Module enable reg write failed\n");
goto exit_flash_led_work;
}
rc = qpnp_led_masked_write(led->spmi_dev,
FLASH_LED_STROBE_CTRL(led->base),
flash_node->trigger,
flash_node->trigger);
if (rc) {
dev_err(&led->spmi_dev->dev,
"Strobe ctrl reg write failed\n");
goto exit_flash_led_work;
}
} else if (flash_node->type == FLASH) {
if (led->pdata->power_detect_en) {
max_curr_avail_ma =
qpnp_flash_led_get_max_avail_current
(flash_node, led);
if (max_curr_avail_ma < 0) {
dev_err(&led->spmi_dev->dev,
"Failed to get Max available curr\n");
goto exit_flash_led_work;
} else {
if (max_curr_avail_ma <
flash_node->prgm_current) {
dev_err(&led->spmi_dev->dev,
"battery only supports %d mA.\n",
max_curr_avail_ma);
flash_node->prgm_current =
(u16) max_curr_avail_ma;
}
}
}
val = (u8)((flash_node->duration - FLASH_DURATION_DIVIDER)
/ FLASH_DURATION_DIVIDER);
rc = qpnp_led_masked_write(led->spmi_dev,
FLASH_SAFETY_TIMER(led->base),
FLASH_SAFETY_TIMER_MASK, val);
if (rc) {
dev_err(&led->spmi_dev->dev,
"Safety timer reg write failed\n");
goto exit_flash_led_work;
}
rc = qpnp_led_masked_write(led->spmi_dev,
FLASH_MAX_CURRENT(led->base),
FLASH_CURRENT_MASK, FLASH_MAX_LEVEL);
if (rc) {
dev_err(&led->spmi_dev->dev,
"Max current reg write failed\n");
goto exit_flash_led_work;
}
val = (u8)(flash_node->prgm_current * FLASH_MAX_LEVEL
/ flash_node->max_current);
rc = qpnp_led_masked_write(led->spmi_dev,
flash_node->current_addr,
FLASH_CURRENT_MASK, val);
if (rc) {
dev_err(&led->spmi_dev->dev,
"Current reg write failed\n");
goto exit_flash_led_work;
}
rc = qpnp_led_masked_write(led->spmi_dev,
FLASH_MODULE_ENABLE_CTRL(led->base),
FLASH_MODULE_ENABLE |
flash_node->enable,
FLASH_MODULE_ENABLE |
flash_node->enable);
if (rc) {
dev_err(&led->spmi_dev->dev,
"Module enable reg write failed\n");
goto exit_flash_led_work;
}
usleep(FLASH_RAMP_UP_DELAY_US);
rc = qpnp_led_masked_write(led->spmi_dev,
FLASH_LED_STROBE_CTRL(led->base),
flash_node->trigger,
flash_node->trigger);
if (rc) {
dev_err(&led->spmi_dev->dev,
"Strobe reg write failed\n");
goto exit_flash_led_work;
}
}
flash_node->flash_on = true;
mutex_unlock(&led->flash_led_lock);
return;
turn_off:
rc = qpnp_led_masked_write(led->spmi_dev,
FLASH_LED_STROBE_CTRL(led->base),
flash_node->trigger, FLASH_LED_DISABLE);
if (rc) {
dev_err(&led->spmi_dev->dev, "Strobe disable failed\n");
goto exit_flash_led_work;
}
usleep(FLASH_RAMP_DN_DELAY_US);
rc = qpnp_flash_led_module_disable(led, flash_node);
if (rc) {
dev_err(&led->spmi_dev->dev, "Module disable failed\n");
goto exit_flash_led_work;
}
exit_flash_led_work:
if (flash_node->boost_regulator && flash_node->flash_on) {
regulator_disable(flash_node->boost_regulator);
error_regulator_enable:
if (regulator_count_voltages(flash_node->boost_regulator) > 0)
regulator_set_voltage(flash_node->boost_regulator,
0, flash_node->boost_voltage_max);
}
flash_node->flash_on = false;
mutex_unlock(&led->flash_led_lock);
return;
}
static int qpnp_flash_led_module_disable(struct qpnp_flash_led *led,
struct flash_node_data *flash_node)
{
union power_supply_propval psy_prop;
int rc;
u8 val, tmp;
rc = spmi_ext_register_readl(led->spmi_dev->ctrl,
led->spmi_dev->sid,
FLASH_LED_STROBE_CTRL(led->base),
&val, 1);
if (rc) {
dev_err(&led->spmi_dev->dev,
"Unable to read module enable reg\n");
return -EINVAL;
}
tmp = ~flash_node->trigger & val;
if (!tmp) {
if (flash_node->type == TORCH) {
rc = qpnp_led_masked_write(led->spmi_dev,
FLASH_LED_UNLOCK_SECURE(led->base),
FLASH_SECURE_MASK, FLASH_UNLOCK_SECURE);
if (rc) {
dev_err(&led->spmi_dev->dev,
"Secure reg write failed\n");
return -EINVAL;
}
rc = qpnp_led_masked_write(led->spmi_dev,
FLASH_TORCH(led->base),
FLASH_TORCH_MASK, FLASH_LED_TORCH_DISABLE);
if (rc) {
dev_err(&led->spmi_dev->dev,
"Torch reg write failed\n");
return -EINVAL;
}
}
rc = qpnp_led_masked_write(led->spmi_dev,
FLASH_MODULE_ENABLE_CTRL(led->base),
FLASH_MODULE_ENABLE_MASK, FLASH_LED_DISABLE);
if (rc) {
dev_err(&led->spmi_dev->dev, "Module disable failed\n");
return -EINVAL;
}
if (led->battery_psy) {
psy_prop.intval = false;
rc = led->battery_psy->set_property(led->battery_psy,
POWER_SUPPLY_PROP_FLASH_ACTIVE,
&psy_prop);
if (rc) {
dev_err(&led->spmi_dev->dev,
"Failed to setup OTG pulse skip enable\n");
return -EINVAL;
}
}
} else {
rc = qpnp_led_masked_write(led->spmi_dev,
FLASH_MODULE_ENABLE_CTRL(led->base),
flash_node->enable, flash_node->enable);
if (rc) {
dev_err(&led->spmi_dev->dev, "Module disable failed\n");
return -EINVAL;
}
}
return 0;
}
