On Wed, Mar 19, 2014 at 06:01:35PM +0800, Li Jun wrote:
> Leave vbus on/off hanlded by OTG fsm if in OTG mode.
>
> Signed-off-by: Li Jun <b47624@xxxxxxxxxxxxx>
> ---
> drivers/usb/chipidea/host.c | 6 +++---
> drivers/usb/chipidea/host.h | 9 +++++++++
> 2 files changed, 12 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
> index a8ac6c1..4b609bc 100644
> --- a/drivers/usb/chipidea/host.c
> +++ b/drivers/usb/chipidea/host.c
> @@ -67,7 +67,7 @@ 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) {
> + if (ci->platdata->reg_vbus && !ci_host_is_otg(ci)) {
> ret = regulator_enable(ci->platdata->reg_vbus);
> if (ret) {
> dev_err(ci->dev,
> @@ -89,7 +89,7 @@ static int host_start(struct ci_hdrc *ci)
> return ret;
>
> disable_reg:
> - if (ci->platdata->reg_vbus)
> + if (ci->platdata->reg_vbus && !ci_host_is_otg(ci))
> regulator_disable(ci->platdata->reg_vbus);
>
> put_hcd:
> @@ -105,7 +105,7 @@ 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_host_is_otg(ci))
> regulator_disable(ci->platdata->reg_vbus);
> }
> }
> diff --git a/drivers/usb/chipidea/host.h b/drivers/usb/chipidea/host.h
> index 5707bf3..f98d084 100644
> --- a/drivers/usb/chipidea/host.h
> +++ b/drivers/usb/chipidea/host.h
> @@ -6,6 +6,15 @@
> int ci_hdrc_host_init(struct ci_hdrc *ci);
> void ci_hdrc_host_destroy(struct ci_hdrc *ci);
>
> +static inline bool ci_host_is_otg(struct ci_hdrc *ci)
> +{
> +#ifdef CONFIG_USB_OTG_FSM
> + return (ci->is_otg) && (ci->platdata->dr_mode == USB_DR_MODE_OTG);
> +#else
> + return false;
> +#endif
> +}
> +
> #else
I talked at last round email, we need to use below condition to stand
for OTG condition:
static inline bool ci_host_is_otg(struct ci_hdrc *ci)
{
#ifdef CONFIG_USB_OTG_FSM
return ci->is_otg && ci->roles[CI_ROLE_HOST] && ci->roles[CI_ROLE_GADGET];
#else
return false;
#endif
}
The user may only choose host or gadget support at configuration menu.
>
> static inline int ci_hdrc_host_init(struct ci_hdrc *ci)
> --
> 1.7.9.5
>
>
--
Best Regards,
Peter Chen
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