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usb: chipidea: host: vbus control change for OTG HNP 

Leave vbus on/off hanlded by OTG fsm if in OTG mode.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Li Jun <b47624@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Li Jun 2014-04-23 15:56:45 +08:00 committed by Greg Kroah-Hartman
parent 57677be5ef
commit 8a28b904ad
1 changed files with 7 additions and 3 deletions
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10
drivers/usb/chipidea/host.c
View File

@ -67,7 +67,11 @@ static int host_start(struct ci_hdrc *ci)
ehci->has_tdi_phy_lpm = ci->hw_bank.lpm;
ehci->imx28_write_fix = ci->imx28_write_fix;
if (ci->platdata->reg_vbus) {
/*
* vbus is always on if host is not in OTG FSM mode,
* otherwise should be controlled by OTG FSM
*/
if (ci->platdata->reg_vbus && !ci_otg_is_fsm_mode(ci)) {
ret = regulator_enable(ci->platdata->reg_vbus);
if (ret) {
dev_err(ci->dev,
@ -89,7 +93,7 @@ static int host_start(struct ci_hdrc *ci)
return ret;
disable_reg:
if (ci->platdata->reg_vbus)
if (ci->platdata->reg_vbus && !ci_otg_is_fsm_mode(ci))
regulator_disable(ci->platdata->reg_vbus);
put_hcd:
@ -105,7 +109,7 @@ static void host_stop(struct ci_hdrc *ci)
if (hcd) {
usb_remove_hcd(hcd);
usb_put_hcd(hcd);
if (ci->platdata->reg_vbus)
if (ci->platdata->reg_vbus && !ci_otg_is_fsm_mode(ci))
regulator_disable(ci->platdata->reg_vbus);
}
}