Set a flag on OTG charger event and check it on cable remove event (i.e. USB_EVENT_NONE). This way we will not need to power up the PHY when an external charger is detected by the transceiver itself.
Signed-off-by: Dima Zavin <[email protected]> --- drivers/usb/musb/musb_core.h | 1 + drivers/usb/musb/omap2430.c | 12 ++++++++++++ 2 files changed, 13 insertions(+), 0 deletions(-) diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h index 0e053b5..f65269d 100644 --- a/drivers/usb/musb/musb_core.h +++ b/drivers/usb/musb/musb_core.h @@ -497,6 +497,7 @@ struct musb { struct usb_gadget g; /* the gadget */ struct usb_gadget_driver *gadget_driver; /* its driver */ #endif + bool is_ac_charger:1; /* * FIXME: Remove this flag. diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index c5d4c44..ac4cfbc 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -257,6 +257,11 @@ static int musb_otg_notifications(struct notifier_block *nb, } break; + case USB_EVENT_CHARGER: + dev_dbg(musb->controller, "Dedicated charger connect\n"); + musb->is_ac_charger = true; + break; + case USB_EVENT_VBUS: dev_dbg(musb->controller, "VBUS Connect\n"); @@ -268,6 +273,13 @@ static int musb_otg_notifications(struct notifier_block *nb, break; case USB_EVENT_NONE: + if (musb->is_ac_charger) { + dev_dbg(musb->controller, + "Dedicated charger disconnect\n"); + musb->is_ac_charger = false; + break; + } + dev_dbg(musb->controller, "VBUS Disconnect\n"); #ifdef CONFIG_USB_GADGET_MUSB_HDRC -- 1.7.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
