Dear Peter Chen,
> Since we need otgsc to know vbus's status at some chipidea
> controllers even it is peripheral-only mode. Besides, some
> SoCs (eg, AR9331 SoC) don't have otgsc register even
> the DCCPARAMS_DC and DCCPARAMS_HC are both 1 at CAP_DCCPARAMS.
> We inroduce otg_cap attribute to indicate if the controller
> is otg capable, defaultly, we follow the rule that if DCCPARAMS_DC
> and DCCPARAMS_HC are both 1 at CAP_DCCPARAMS are otg capable, but if there
> is exception, the platform can override it by device tree or platform data.
>
> Signed-off-by: Peter Chen <peter.chen@xxxxxxxxxxxxx>
> ---
> drivers/usb/chipidea/core.c | 35 ++++++++++++++++++++++++++++-------
> include/linux/usb/chipidea.h | 13 +++++++++++++
> 2 files changed, 41 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
> index 93961ff..e8ceb04 100644
> --- a/drivers/usb/chipidea/core.c
> +++ b/drivers/usb/chipidea/core.c
> @@ -405,6 +405,18 @@ static inline void ci_role_destroy(struct ci_hdrc *ci)
> ci_hdrc_host_destroy(ci);
> }
>
> +static void ci_get_otg_capable(struct ci_hdrc *ci)
> +{
> + if (ci->platdata->otg_cap != OTG_CAP_ATTR_IS_NOT_EXISTED)
IS_NONEXISTENT , no?
[..]
Best regards,
Marek Vasut
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