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atmel_serial: Fix build on avr32 with CONFIG_PM enabled 

AVR32 doesn't have at91_suspend_entering_slow_clock(). Just assume the
clock will keep running for now.

David has a better solution for this, but this works for now. Leaving
the USART clock running won't prevent the PM code from entering deep
power-down modes anyway.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: David Brownell <david-b@pacbell.net>
Cc: Andrew Victor <linux@maxim.org.za>
This commit is contained in:
Haavard Skinnemoen 2008-02-24 14:34:45 +01:00 committed by Haavard Skinnemoen
parent 38510754a5
commit f826caa449
1 changed files with 10 additions and 1 deletions
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11
drivers/serial/atmel_serial.c
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@ -1439,6 +1439,15 @@ static struct uart_driver atmel_uart = {
};
#ifdef CONFIG_PM
static bool atmel_serial_clk_will_stop(void)
{
#ifdef CONFIG_ARCH_AT91
return at91_suspend_entering_slow_clock();
#else
return false;
#endif
}
static int atmel_serial_suspend(struct platform_device *pdev,
pm_message_t state)
{
@ -1446,7 +1455,7 @@ static int atmel_serial_suspend(struct platform_device *pdev,
struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
if (device_may_wakeup(&pdev->dev)
&& !at91_suspend_entering_slow_clock())
&& !atmel_serial_clk_will_stop())
enable_irq_wake(port->irq);
else {
uart_suspend_port(&atmel_uart, port);