diff options
| author | Li Jun <b47624@freescale.com> | 2014-10-16 22:18:00 +0800 |
|---|---|---|
| committer | Jason Liu <jason.hui.liu@nxp.com> | 2019-02-12 10:21:34 +0800 |
| commit | 680ed7f042e74dab0c043ef9bdfa67255dc1e600 (patch) | |
| tree | 1562ecb75398bb43b5e916029020582230971056 /drivers/usb/chipidea/core.c | |
| parent | 794371e6471026ea46d4ae24b2ea8a2d64a87b84 (diff) | |
MLK-9618-7 usb: chipidea: otg: delay turn on vbus when detecting data pulse
This patch adds a timer to delay turn on vbus after detecting data pulse
from B-device, this is required by OTG SRP timing.
Signed-off-by: Li Jun <b47624@freescale.com>
(cherry picked from commit f02ee3e93715c41f5b1e11140f36e350c7ed4d6b)
Diffstat (limited to 'drivers/usb/chipidea/core.c')
| -rw-r--r-- | drivers/usb/chipidea/core.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index c6563c5ca30e..bea58d9d4cf0 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -1162,13 +1162,10 @@ static void ci_otg_fsm_wakeup_by_srp(struct ci_hdrc *ci) { if ((ci->fsm.otg->state == OTG_STATE_A_IDLE) && (ci->fsm.a_bus_drop == 1) && (ci->fsm.a_bus_req == 0)) { - if (!hw_read_otgsc(ci, OTGSC_ID)) { - ci->fsm.a_srp_det = 1; - ci->fsm.a_bus_drop = 0; - } else { + if (!hw_read_otgsc(ci, OTGSC_ID)) + otg_add_timer(&ci->fsm, A_DP_END); + else ci->fsm.id = 1; - } - ci_otg_queue_work(ci); } } |