static int imapx200_serial_resume(struct platform_device *dev)
{
struct uart_port *port = imapx200_dev_to_port(&dev->dev);
struct imapx200_uart_port *ourport = to_ourport(port);
if (port)
{
clk_enable(ourport->clk);
imapx200_serial_resetport(port, imapx200_port_to_cfg(port));
clk_disable(ourport->clk);
uart_resume_port(&imapx200_uart_drv, port);
}
return 0;
}
static int imapx200_serial_resume(struct platform_device *dev)
{
struct uart_port *port = imapx200_dev_to_port(&dev->dev);
struct imapx200_uart_port *ourport = to_ourport(port);
if (port)
{
clk_enable(ourport->clk);
imapx200_serial_resetport(port, imapx200_port_to_cfg(port));
clk_disable(ourport->clk);
uart_resume_port(&imapx200_uart_drv, port);
}
if(port->irq == IRQ_UART3) {
printk(KERN_ERR "resume port3: mdelay.\n");
mdelay(20);
}
return 0;
}
/*
***********************************************************************
* -Function:
* imapx200_serial_init_port( INPUT1 * pInput1, INPUT2 *pInput2, OUTPUT1 *pOutput1)
*
* -Description:
* This function implement special features. The process is,
* 1. Initialise a single serial port from the platform device given
*
* -Input Param
* *info : struct imapx200_uart_info
* *platdev : struct platform_device
*
* -Output Param
* *ourport : struct imapx200_uart_port
*
* -Return
* 0 : correct
* others : error
*
* -Others
* None.
***********************************************************************
*/
static int imapx200_serial_init_port(struct imapx200_uart_port *ourport,
struct imapx200_uart_info *info, struct platform_device *platdev)
{
struct uart_port *port = &ourport->port;
struct imapx200_uartcfg *cfg;
struct resource *res;
int ret;
dbg("imapx200_serial_init_port: port=%p, platdev=%p\n", port, platdev);
if (platdev == NULL)
return -ENODEV;
cfg = imapx200_dev_to_cfg(&platdev->dev);
if (port->mapbase != 0)
return 0;
if (cfg->hwport > 3)
return -EINVAL;
/* setup info for port */
port->dev = &platdev->dev;
ourport->info = info;
/* copy the info in from provided structure */
ourport->port.fifosize = info->fifosize;
dbg("imapx200_serial_init_port: %p (hw %d)...\n", port, cfg->hwport);
port->uartclk = 1;
if (cfg->uart_flags & UPF_CONS_FLOW)
{
dbg("imapx200_serial_init_port: enabling flow control\n");
port->flags |= UPF_CONS_FLOW;
}
/* sort our the physical and virtual addresses for each UART */
res = platform_get_resource(platdev, IORESOURCE_MEM, 0);
if (res == NULL)
{
printk(KERN_ERR "failed to find memory resource for uart\n");
return -EINVAL;
}
dbg("resource %p (%lx..%lx)\n", res, res->start, res->end);
port->mapbase = res->start;
port->membase = IMAP_VA_UART + (res->start - IMAPX200_PA_UART0);
ret = platform_get_irq(platdev, 0);
#if 0
if (ret < 0)
port->irq = 0;
else
port->irq = ret;
#endif
if (ret < 0)
port->irq = 0;
else {
port->irq = ret;
ourport->rx_irq = ret;
ourport->tx_irq = ret + 1;
}
ret = platform_get_irq(platdev, 1);
if (ret > 0)
ourport->tx_irq = ret;
#if 1
ourport->clk = clk_get(&platdev->dev, "UART0");
dbg("port: map=%08x, mem=%08x, irq=%d (%d,%d), clock=%ld\n",
port->mapbase, port->membase, port->irq, ourport->rx_irq, ourport->tx_irq, port->uartclk);
#endif
/* reset the fifos (and setup the uart) */
imapx200_serial_resetport(port, cfg);
return 0;
}
