[PATCH v3 4/4] musb: sunxi: Simplify dr_mode handling

[hdegoede@redhat.com (Hans de Goede)]

Hi,

On 08-06-16 12:23, Maxime Ripard wrote:
> Hi,
>
> On Sun, Jun 05, 2016 at 04:59:36PM +0200, Hans de Goede wrote:
>> phy-sun4i-usb now has proper dr_mode handling, it always registers an
>> extcon, and sends a notify with the mode (even when in peripheral- /
>> host-only mode) at least once.
>>
>> So we can simply the sunxi musb glue by always registering its extcon
>> notifier and relying on sunxi_musb_work() to enable vbus when in
>> host-only mode.
>>
>> This also enables host- and peripheral-only mode with vbus monitoring.
>>
>> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
>
> It's been a bit painful to track all the patches needed so that it
> applies properly, but I've finally been able to test it on a Sinlinx
> SinA33 with peripheral-only mUSB, and it works like a charm.
>
> You can add my Tested-by.

Great, thanks for testing.

This is the board which has an otg connector with vbus not connected,
right? Yet it does have a functional id-pin, right ?

In that case you should be able to put it in dual-role mode (only
specify the id-pin in the phy dts node, no vbus / vbus-monitoring)
and then it _should_ work in host mode if you use a powered hub.

I'm fine with putting in peripheral-only mode, but as said
dual-role might work with a powered hub.

Regards,

Hans