Messages in this thread Patch in this message | | | From | Moreno Bartalucci <> | Subject | [PATCH] usb-musb: keep VBUS on when device is disconnected | Date | Wed, 15 Mar 2017 15:08:01 +0100 |
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With usb-musb port in host mode, when the device is disconnected, either logically (because of a mode switch) or physically (by pulling the cable), the USB port should keep suppling VBUS, with no interruption, to prevent power loss on USB powered devices.
Signed-off-by: Moreno Bartalucci <moreno.bartalucci@tecnorama.it> --- drivers/usb/musb/musb_dsps.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c index 7c047c4..5d9986b 100644 --- a/drivers/usb/musb/musb_dsps.c +++ b/drivers/usb/musb/musb_dsps.c @@ -245,7 +245,7 @@ static int dsps_check_status(struct musb *musb, void *unused) dsps_mod_timer_optional(glue); break; case OTG_STATE_A_WAIT_BCON: - musb_writeb(musb->mregs, MUSB_DEVCTL, 0); + musb_writeb(musb->mregs, MUSB_DEVCTL, MUSB_DEVCTL_SESSION); skip_session = 1; /* fall */ -- 2.10.1 (Apple Git-78)
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