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drivers: stepper: gpio: introduce power down coils function

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power down coils when gpio stepper is disabled

Signed-off-by: Jilay Pandya <jilay.pandya@outlook.com>
This commit is contained in:
Jilay Pandya 2024-11-15 20:34:28 +01:00 • committed by Anas Nashif
commit df3b76b55a
1 changed files with 20 additions and 0 deletions
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20
drivers/stepper/gpio_stepper_controller.c
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@ -77,6 +77,21 @@ static void decrement_coil_charge(const struct device *dev)
}
}
static int power_down_coils(const struct device *dev)
{
const struct gpio_stepper_config *config = dev->config;
for (int i = 0; i < NUM_CONTROL_PINS; i++) {
const int err = gpio_pin_set_dt(&config->control_pins[i], 0u);
if (err != 0) {
LOG_ERR("Failed to power down coil %d", i);
return err;
}
}
return 0;
}
static void update_coil_charge(const struct device *dev)
{
const struct gpio_stepper_config *config = dev->config;
@ -313,6 +328,11 @@ static int gpio_stepper_enable(const struct device *dev, bool enable)
(void)k_work_reschedule(&data->stepper_dwork, K_NO_WAIT);
} else {
(void)k_work_cancel_delayable(&data->stepper_dwork);
const int err = power_down_coils(dev);
if (err != 0) {
return -EIO;
}
}
}
return 0;