[linux-sunxi] Re: [PATCH 5/5] ARM: sun5i: Add C.H.I.P DTS
Maxime Ripard
maxime.ripard at free-electrons.com
Tue Sep 22 07:04:24 PDT 2015
On Tue, Sep 22, 2015 at 03:01:58PM +0200, Hans de Goede wrote:
> >In short, this is not about "power supply" but VBUS detection. IIRC,
> >if no VBUS detection method is provided, the phy driver just waits a
> >period of time after an ID pin change and then considers VBUS invalid.
>
> Right, but that is a hack for boards with no / broken vbus detection
> (or vbus control), we really want to use vbus-det where available,
> so I agree that a TODO comment here would be good.
What's so special in our SoCs that makes that we can't just rely on
the ID pin ? (which seems to be working just fine here)
Other SoCs don't need to rely on such a hack as well.
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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