C++ (Cpp) serial8250_do_startup Examples

Example #1

File: 8250_aspeed_vuart.c Project: Lyude/linux

static int aspeed_vuart_startup(struct uart_port *uart_port)
{
	struct uart_8250_port *uart_8250_port = up_to_u8250p(uart_port);
	struct aspeed_vuart *vuart = uart_8250_port->port.private_data;
	int rc;

	rc = serial8250_do_startup(uart_port);
	if (rc)
		return rc;

	aspeed_vuart_set_host_tx_discard(vuart, false);

	return 0;
}

Example #2

File: 8250_omap.c Project: 383530895/linux

static int omap_8250_startup(struct uart_port *port)
{
	struct uart_8250_port *up =
		container_of(port, struct uart_8250_port, port);
	struct omap8250_priv *priv = port->private_data;

	int ret;

	if (priv->wakeirq) {
		ret = request_irq(priv->wakeirq, omap_wake_irq,
				  port->irqflags, "uart wakeup irq", port);
		if (ret)
			return ret;
		disable_irq(priv->wakeirq);
	}

	pm_runtime_get_sync(port->dev);

	ret = serial8250_do_startup(port);
	if (ret)
		goto err;

#ifdef CONFIG_PM_RUNTIME
	up->capabilities |= UART_CAP_RPM;
#endif

	/* Enable module level wake up */
	priv->wer = OMAP_UART_WER_MOD_WKUP;
	if (priv->habit & OMAP_UART_WER_HAS_TX_WAKEUP)
		priv->wer |= OMAP_UART_TX_WAKEUP_EN;
	serial_out(up, UART_OMAP_WER, priv->wer);

	if (up->dma)
		up->dma->rx_dma(up, 0);

	pm_runtime_mark_last_busy(port->dev);
	pm_runtime_put_autosuspend(port->dev);
	return 0;
err:
	pm_runtime_mark_last_busy(port->dev);
	pm_runtime_put_autosuspend(port->dev);
	if (priv->wakeirq)
		free_irq(priv->wakeirq, port);
	return ret;
}

Example #3

File: 8250_mtk.c Project: AlexShiLucky/linux

static int mtk8250_startup(struct uart_port *port)
{
#ifdef CONFIG_SERIAL_8250_DMA
	struct uart_8250_port *up = up_to_u8250p(port);
	struct mtk8250_data *data = port->private_data;

	/* disable DMA for console */
	if (uart_console(port))
		up->dma = NULL;

	if (up->dma) {
		data->rx_status = DMA_RX_START;
		uart_circ_clear(&port->state->xmit);
	}
#endif
	memset(&port->icount, 0, sizeof(port->icount));

	return serial8250_do_startup(port);
}