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>
diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c
index 42be8b01..5f0414f 100644
--- a/drivers/serial/atmel_serial.c
+++ b/drivers/serial/atmel_serial.c
@@ -1439,6 +1439,15 @@
};
#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 @@
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);