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[ARM] pxa: allow keypad GPIOs to wakeup when configured as generic 

Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
This commit is contained in:
Eric Miao 2010-04-20 14:52:50 +08:00
parent 1106143d7a
commit c09f431c33
1 changed files with 22 additions and 9 deletions
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31
arch/arm/mach-pxa/mfp-pxa2xx.c
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@ -178,8 +178,17 @@ int gpio_set_wake(unsigned int gpio, unsigned int on)
if (!d->valid) if (!d->valid)
return -EINVAL; return -EINVAL;
if (d->keypad_gpio) /* Allow keypad GPIOs to wakeup system when
return -EINVAL; * configured as generic GPIOs.
*/
if (d->keypad_gpio && (MFP_AF(d->config) == 0) &&
(d->config & MFP_LPM_CAN_WAKEUP)) {
if (on)
PKWR |= d->mask;
else
PKWR &= ~d->mask;
return 0;
}
mux_taken = (PWER & d->mux_mask) & (~d->mask); mux_taken = (PWER & d->mux_mask) & (~d->mask);
if (on && mux_taken) if (on && mux_taken)
@ -239,21 +248,25 @@ static int pxa27x_pkwr_gpio[] = {
int keypad_set_wake(unsigned int on) int keypad_set_wake(unsigned int on)
{ {
unsigned int i, gpio, mask = 0; unsigned int i, gpio, mask = 0;
struct gpio_desc *d;
if (!on) {
PKWR = 0;
return 0;
}
for (i = 0; i < ARRAY_SIZE(pxa27x_pkwr_gpio); i++) { for (i = 0; i < ARRAY_SIZE(pxa27x_pkwr_gpio); i++) {
gpio = pxa27x_pkwr_gpio[i]; gpio = pxa27x_pkwr_gpio[i];
d = &gpio_desc[gpio];
if (gpio_desc[gpio].config & MFP_LPM_CAN_WAKEUP) /* skip if configured as generic GPIO */
if (MFP_AF(d->config) == 0)
continue;
if (d->config & MFP_LPM_CAN_WAKEUP)
mask |= gpio_desc[gpio].mask; mask |= gpio_desc[gpio].mask;
} }
PKWR = mask; if (on)
PKWR |= mask;
else
PKWR &= ~mask;
return 0; return 0;
} }