redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

usb: chipidea: otg: don't wait vbus drops below BSV when starts host 

Some HW design may use ID pin state to control vbus for otg port,
so before host role start, the vbus is already turned on, in this
case, we do not need wait vbus dropping below BSV.

Signed-off-by: Li Jun <jun.li@freescale.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
hifive-unleashed-5.1
Li Jun 2015-10-16 13:53:20 +08:00 committed by Peter Chen
parent 46b95a1d66
commit 851ce93224
1 changed files with 6 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/usb/chipidea/otg.c
View File

@ -114,9 +114,12 @@ static void ci_handle_id_switch(struct ci_hdrc *ci)
ci_role(ci)->name, ci->roles[role]->name);
ci_role_stop(ci);
/* wait vbus lower than OTGSC_BSV */
hw_wait_reg(ci, OP_OTGSC, OTGSC_BSV, 0,
CI_VBUS_STABLE_TIMEOUT_MS);
if (role == CI_ROLE_GADGET)
/* wait vbus lower than OTGSC_BSV */
hw_wait_reg(ci, OP_OTGSC, OTGSC_BSV, 0,
CI_VBUS_STABLE_TIMEOUT_MS);
ci_role_start(ci, role);
}
}