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