From 4e67185a7ac3ecb1710e636e2f7e318e99298c7a Mon Sep 17 00:00:00 2001 From: Juha Yrj?l? Date: Sun, 16 Oct 2005 15:47:04 -0700 Subject: [PATCH] add usb transceiver set_suspend() method When a USB device is put into suspend mode, the current drawn from VBUS has to be less than 500 uA. Some transceivers need to be put into a special power-saving mode to accomplish this, and won't have a separate OTG driver handling that. This adds a suspend method to the "otg_transceiver" struct -- misnamed, it's not only for OTG -- and calls it from the OMAP UDC driver. Signed-off-by: Juha Yrj?l? Signed-off-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/omap_udc.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/usb') diff --git a/drivers/usb/gadget/omap_udc.c b/drivers/usb/gadget/omap_udc.c index de8a89ae4bc..b42799bc747 100644 --- a/drivers/usb/gadget/omap_udc.c +++ b/drivers/usb/gadget/omap_udc.c @@ -1788,8 +1788,12 @@ static void devstate_irq(struct omap_udc *udc, u16 irq_src) udc->driver->suspend(&udc->gadget); spin_lock(&udc->lock); } + if (udc->transceiver) + otg_set_suspend(udc->transceiver, 1); } else { VDBG("resume\n"); + if (udc->transceiver) + otg_set_suspend(udc->transceiver, 0); if (udc->gadget.speed == USB_SPEED_FULL && udc->driver->resume) { spin_unlock(&udc->lock); -- cgit v1.2.3