On Wed, Sep 22, 2010 at 03:31:50AM -0500, Maulik Mankad wrote:
On Wed, Sep 22, 2010 at 1:22 PM, Krogerus Heikki (EXT-Teleca/Helsinki) <ext-heikki.krogerus@xxxxxxxxx> wrote:From: Heikki Krogerus <ext-heikki.krogerus@xxxxxxxxx> Inform charging HW/SW how much it's allowed to draw. Signed-off-by: Heikki Krogerus <ext-heikki.krogerus@xxxxxxxxx> --- drivers/usb/musb/musb_gadget.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index 6fca870..40d3c13 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -1519,8 +1519,15 @@ static int musb_gadget_vbus_session(struct usb_gadget *gadget, int is_active) static int musb_gadget_vbus_draw(struct usb_gadget *gadget, unsigned mA) { + static unsigned old_ma; struct musb *musb = gadget_to_musb(gadget); + if (mA != 0 && old_ma != mA) + blocking_notifier_call_chain(&musb->xceiv->notifier, + USB_EVENT_ENUMERATED, &mA); +You will need an atomic notifier since this gets called from Interrupt context.
true, we need to patch otg notifier to change into atomic_notifier instead of blocking. -- balbi -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
