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sensor: vl53l0x: pm resume fix

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When active XSHUT resets the chip so we must
re-initialise chip when resuming from PM suspend.

Signed-off-by: Nick Ward <nix.ward@gmail.com>
This commit is contained in:
Nick Ward 2023-08-23 22:24:56 +10:00 • committed by Maureen Helm
commit ee3b9c117e
1 changed files with 30 additions and 30 deletions
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60
drivers/sensor/vl53l0x/vl53l0x.c
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@ -300,36 +300,6 @@ static const struct sensor_driver_api vl53l0x_api_funcs = {
.channel_get = vl53l0x_channel_get,
};
#ifdef CONFIG_PM_DEVICE
static int vl53l0x_pm_action(const struct device *dev,
enum pm_device_action action)
{
const struct vl53l0x_config *const config = dev->config;
int ret;
switch (action) {
case PM_DEVICE_ACTION_RESUME:
ret = gpio_pin_set_dt(&config->xshut, 0);
if (ret < 0) {
LOG_ERR("[%s] XSHUT pin inactive", dev->name);
return ret;
}
break;
case PM_DEVICE_ACTION_SUSPEND:
ret = gpio_pin_set_dt(&config->xshut, 1);
if (ret < 0) {
LOG_ERR("[%s] XSHUT pin active", dev->name);
return ret;
}
break;
default:
return -ENOTSUP;
}
return 0;
}
#endif
static int vl53l0x_init(const struct device *dev)
{
int r;
@ -378,6 +348,36 @@ static int vl53l0x_init(const struct device *dev)
return 0;
}
#ifdef CONFIG_PM_DEVICE
static int vl53l0x_pm_action(const struct device *dev,
enum pm_device_action action)
{
const struct vl53l0x_config *const config = dev->config;
int ret;
switch (action) {
case PM_DEVICE_ACTION_RESUME:
ret = vl53l0x_init(dev);
if (ret != 0) {
LOG_ERR("resume init: %d", ret);
}
break;
case PM_DEVICE_ACTION_SUSPEND:
/* HW Standby */
ret = gpio_pin_set_dt(&config->xshut, 1);
if (ret < 0) {
LOG_ERR("[%s] XSHUT pin active", dev->name);
}
break;
default:
ret = -ENOTSUP;
break;
}
return ret;
}
#endif
#define VL53L0X_INIT(inst) \
static struct vl53l0x_config vl53l0x_##inst##_config = { \
.i2c = I2C_DT_SPEC_INST_GET(inst), \