On 05/01/2010, at 12:01 AM, Eirik Aanonsen wrote:
> Adding vbus_pin_inverted so that the usb detect pin can be active high or low.
> This because depending on HW implementation it is better to have active low.
> Also replaced the pio_get_value(udc->vbus_pin); with a call to vbus_is_present(udc);
>
> Signed-off-by: Eirik Aanonsen <eaa@xxxxxxxxxxxxxx>
> ---
> drivers/usb/gadget/atmel_usba_udc.c | 16 +++++++++++++---
> drivers/usb/gadget/atmel_usba_udc.h | 1 +
> include/linux/usb/atmel_usba_udc.h | 1 +
> 3 files changed, 15 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c
> index 4e970cf..1c469d4 100644
> --- a/drivers/usb/gadget/atmel_usba_udc.c
> +++ b/drivers/usb/gadget/atmel_usba_udc.c
> @@ -320,8 +320,17 @@ static inline void usba_cleanup_debugfs(struct usba_udc *udc)
> static int vbus_is_present(struct usba_udc *udc)
> {
> if (gpio_is_valid(udc->vbus_pin))
> - return gpio_get_value(udc->vbus_pin);
> -
> + {
> + if(udc->vbus_pin_inverted)
> + {
> + if( gpio_get_value(udc->vbus_pin) == 1)
> + return 0;
> + else
> + return 1;
> + }
> + else
> + return gpio_get_value(udc->vbus_pin);
> + }
return gpio_get_value(udc->vbus_pin) ^ udc->vbus_pin_inverted
--Ben.
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