diff options
| author | Li Jun <jun.li@freescale.com> | 2015-04-28 14:41:36 +0800 |
|---|---|---|
| committer | Jason Liu <r64343@freescale.com> | 2015-05-08 17:25:17 +0800 |
| commit | 558e7b5fa3503fd2e429c6c3ac5d12991563a7e9 (patch) | |
| tree | 925c248d31da3d55a32923eeaef657623b6c2141 | |
| parent | 5c59c9e93c7596b35ff60b2c0c5a6b9d16e465da (diff) | |
MLK-10718 usb: chipidea: udc: disable BSV irq when otg from undefined to a_idle
After device power up, insert usb OTG ID cable, otg fsm from undefined state
to a_idle, the BSV cannot be disabled, this will result BSV irq generated but
which is actually only for B device.
Signed-off-by: Li Jun <jun.li@freescale.com>
| -rw-r--r-- | drivers/usb/chipidea/udc.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 55ebd3d0485a..39bd3d92ff2b 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -2005,7 +2005,8 @@ static void udc_id_switch_for_host(struct ci_hdrc *ci) * (in otg fsm mode, means B_IDLE->A_IDLE) due to ID change. */ if (!ci_otg_is_fsm_mode(ci) || - ci->fsm.otg->state == OTG_STATE_B_IDLE) + ci->fsm.otg->state == OTG_STATE_B_IDLE || + ci->fsm.otg->state == OTG_STATE_UNDEFINED) hw_write_otgsc(ci, OTGSC_BSVIE | OTGSC_BSVIS, OTGSC_BSVIS); } |