drivers: stepper: gpio: introduce power down coils function (df3b76b5) · Commits · Wenxi XU / zephyr

drivers/stepper/gpio_stepper_controller.c

+20 −0

Changes for drivers/stepper/gpio_stepper_controller.c: 20 added lines, 0 removed lines.
Original line number	Diff line number	Diff line
		@@ -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;