diff options
| author | Li Jun <B47624@freescale.com> | 2014-04-23 11:56:45 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-04-24 23:56:34 +0400 |
| commit | 8a28b904ad9146cfb217e814f6d07355b1f77536 (patch) | |
| tree | 994e926ffeab2beb033fd6845e2f15bb28875843 /drivers/usb | |
| parent | 57677be5ef838743561f4c1d16821dda0438d362 (diff) | |
| download | linux-8a28b904ad9146cfb217e814f6d07355b1f77536.tar.xz | |
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>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/chipidea/host.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c index a8ac6c16dac9..ffb41688c49f 100644 --- a/drivers/usb/chipidea/host.c +++ b/drivers/usb/chipidea/host.c @@ -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); } } |