drivers: uart: silabs: revert pm deletion for usart_gecko (2594eae6) · Commits · Wenxi XU / zephyr

drivers/serial/uart_gecko.c

+25 −0

Original line number	Diff line number	Diff line
		@@ -669,6 +669,31 @@ static int uart_gecko_init(const struct device *dev)
		return 0;
		}

		#ifdef CONFIG_PM_DEVICE
		static int uart_gecko_pm_action(const struct device *dev, enum pm_device_action action)
		{
		__maybe_unused const struct uart_gecko_config *config = dev->config;

		switch (action) {
		case PM_DEVICE_ACTION_SUSPEND:
		#ifdef USART_STATUS_TXIDLE
		/* Wait for TX FIFO to flush before suspending */
		while (!(USART_StatusGet(config->base) & USART_STATUS_TXIDLE)) {
		}
		#endif
		break;

		case PM_DEVICE_ACTION_RESUME:
		break;

		default:
		return -ENOTSUP;
		}

		return 0;
		}
		#endif

		static DEVICE_API(uart, uart_gecko_driver_api) = {
		.poll_in = uart_gecko_poll_in,
		.poll_out = uart_gecko_poll_out,