diff options
| author | Li Jun <jun.li@nxp.com> | 2016-02-19 05:04:49 +0300 |
|---|---|---|
| committer | Felipe Balbi <balbi@kernel.org> | 2016-03-04 16:14:38 +0300 |
| commit | 4a75754751a02cd12cd598e02ded226c3ea2fc23 (patch) | |
| tree | 959bbcad625befb91233326b172156f05451c741 /drivers/usb/chipidea/otg_fsm.h | |
| parent | 9c527f49a7312450923222941ff50e5940004e97 (diff) | |
| download | linux-4a75754751a02cd12cd598e02ded226c3ea2fc23.tar.xz | |
usb: chipidea: otg: add A idle to B disconnect timer
B-device detects that bus is idle for more than TB_AIDL_BDIS min and
begins HNP by turning off pullup on DP, this allows the bus to discharge
to the SE0 state. This timer was missed and failed with PET test:
6.8.5 B-UUT HNP of USB OTG and EH automated compliance plan v1.2,
this patch is to fix this timing issue.
Acked-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Li Jun <jun.li@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Diffstat (limited to 'drivers/usb/chipidea/otg_fsm.h')
| -rw-r--r-- | drivers/usb/chipidea/otg_fsm.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/otg_fsm.h b/drivers/usb/chipidea/otg_fsm.h index 262d6ef8df7c..6366fe398ba6 100644 --- a/drivers/usb/chipidea/otg_fsm.h +++ b/drivers/usb/chipidea/otg_fsm.h @@ -62,6 +62,8 @@ /* SSEND time before SRP */ #define TB_SSEND_SRP (1500) /* minimum 1.5 sec, section:5.1.2 */ +#define TB_AIDL_BDIS (20) /* 4ms ~ 150ms, section 5.2.1 */ + #if IS_ENABLED(CONFIG_USB_OTG_FSM) int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci); |