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OMAP: UART: use non-locking versions of hwmod enable/idle functions

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Since the UART enable/idle is done during the idle path (with
interrupts disabled), use the non-locking versions of the hwmod
enable/idle functions.

Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
This commit is contained in:
Kevin Hilman 2010-09-27 20:20:06 +05:30
parent 3244fcd227
commit 8da37d9dc5
1 changed files with 21 additions and 2 deletions
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23
arch/arm/mach-omap2/serial.c
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@ -105,10 +105,29 @@ struct omap_uart_state {
static LIST_HEAD(uart_list);
static u8 num_uarts;
/*
* Since these idle/enable hooks are used in the idle path itself
* which has interrupts disabled, use the non-locking versions of
* the hwmod enable/disable functions.
*/
static int uart_idle_hwmod(struct omap_device *od)
{
_omap_hwmod_idle(od->hwmods[0]);
return 0;
}
static int uart_enable_hwmod(struct omap_device *od)
{
_omap_hwmod_enable(od->hwmods[0]);
return 0;
}
static struct omap_device_pm_latency omap_uart_latency[] = {
{
.deactivate_func = omap_device_idle_hwmods,
.activate_func = omap_device_enable_hwmods,
.deactivate_func = uart_idle_hwmod,
.activate_func = uart_enable_hwmod,
.flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
},
};