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USB gadget at91: Use dev_add_param_bool for vbus parameter 

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2013-04-06 13:28:42 +02:00
parent d8ee54fbbf
commit a40442cfa4
1 changed files with 7 additions and 16 deletions
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23
drivers/usb/gadget/at91_udc.c
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@ -1316,17 +1316,9 @@ static struct at91_udc controller = {
static void at91_udc_irq (void *_udc);
static void at91_update_vbus(struct at91_udc *udc, u32 value)
static int at91_udc_vbus_set(struct param_d *p, void *priv)
{
if (value == udc->gpio_vbus_val)
return;
if (value)
dev_set_param(udc->dev, "vbus", "1");
else
dev_set_param(udc->dev, "vbus", "0");
udc->gpio_vbus_val = value;
return -EROFS;
}
int usb_gadget_poll(void)
@ -1340,11 +1332,10 @@ int usb_gadget_poll(void)
value = gpio_get_value(udc->board.vbus_pin);
value ^= udc->board.vbus_active_low;
if (!value) {
at91_update_vbus(udc, value);
udc->gpio_vbus_val = value;
if (!value)
return 0;
}
at91_update_vbus(udc, value);
value = at91_udp_read(udc, AT91_UDP_ISR) & (~(AT91_UDP_SOFINT));
if (value)
@ -1516,8 +1507,8 @@ static int __init at91udc_probe(struct device_d *dev)
udc->vbus = 1;
}
dev_add_param(dev, "vbus", NULL, NULL, 0);
dev_set_param(dev, "vbus", "0");
dev_add_param_bool(dev, "vbus",
at91_udc_vbus_set, NULL, &udc->gpio_vbus_val, udc);
poller_register(&poller);