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From: Doug Anderson <dianders-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
To: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: "Heiko Stübner" <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>,
	"Kishon Vijay Abraham I" <kishon-l0cyMroinI0@public.gmane.org>,
	"John Youn" <johnyoun-HKixBCOQz3hWk0Htik3J/w@public.gmane.org>,
	"Felipe Balbi" <balbi-l0cyMroinI0@public.gmane.org>,
	"Greg Kroah-Hartman"
	<gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>,
	lyz <lyz-TNX95d0MmH7DzftRWevZcw@public.gmane.org>,
	wulf <wulf-TNX95d0MmH7DzftRWevZcw@public.gmane.org>,
	"Mark Rutland" <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
	"devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"Russell King" <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>,
	"Pawel Moll" <pawel.moll-5wv7dgnIgG8@public.gmane.org>,
	"Ian Campbell"
	<ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org>,
	"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"open list:ARM/Rockchip SoC..."
	<linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>,
	"Kumar Gala" <galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
	"Herrero,
	Gregory"
	<gregory.herrero-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	"linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
	<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>
Subject: Re: [PATCH 0/4] Patches to fix remote wakeup on rk3288 dwc2 "host" port
Date: Mon, 26 Oct 2015 18:43:00 -0700	[thread overview]
Message-ID: <CAD=FV=VKhBheVVBFT9DRDgd32o54RV8Er8sKqCHUvZm3ChnBRA@mail.gmail.com> (raw)
In-Reply-To: <CAD=FV=UfdEN4MzAwZLWDTQ4qMakhchpr063U1e3uk6R96wScJw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>

Hi,

On Mon, Oct 26, 2015 at 4:49 PM, Doug Anderson <dianders-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org> wrote:
> One note: the "full" PHY reset is actually not in the register map of
> the PHY.  It is amazingly enough in the CRU (clock reset unit).  So if
> we actually exposed the "full" reset through the PHY framework, the
> PHY would then turn around and pass it off to the reset framework,
> which is how the full PHY reset is exposed from the CRU.

Interestingly enough, it looks like there's a reasonable chance that
we won't be able to use the PHY port reset.  We might have to go back
to the full PHY reset (though it causes de-enumeration and
re-enumeration) for safety, since there might be some side effects of
the "phy port reset".

Probably shouldn't land this series until we can figure that out.
...but in that case we still have the question of how we should export
it.  It would certainly be easy to keep using the reset framework...
--
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      parent reply	other threads:[~2015-10-27  1:43 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-23 18:28 [PATCH 0/4] Patches to fix remote wakeup on rk3288 dwc2 "host" port Douglas Anderson
2015-10-23 18:28 ` [PATCH 2/4] usb: dwc2: optionally assert phy "port reset" when waking up Douglas Anderson
2015-10-23 18:28 ` [PATCH 4/4] ARM: dts: rockchip: Point rk3288 dwc2 usb at phy port reset Douglas Anderson
     [not found] ` <1445624891-31680-1-git-send-email-dianders-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
2015-10-23 18:28   ` [PATCH 1/4] phy: rockchip-usb: Support the PHY's "port reset" Douglas Anderson
2015-10-23 18:28   ` [PATCH 3/4] ARM: dts: rockchip: Enable the USB phys as reset providers on rk3288 Douglas Anderson
2015-10-24 12:26   ` [PATCH 0/4] Patches to fix remote wakeup on rk3288 dwc2 "host" port Heiko Stübner
2015-10-24 15:10   ` Rob Herring
     [not found]     ` <562B9F5F.1080800-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2015-10-24 21:22       ` Doug Anderson
     [not found]         ` <CAD=FV=VgYU8sZfSkbNbbOFpb-nt=Yy9NjybxADBnAiQXfasDpw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-10-26 23:05           ` Rob Herring
     [not found]             ` <CAL_JsqLtYrzvreV68V5S0wFJNAR6JusnqZrLjsJwT6yXgrQKHg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-10-26 23:49               ` Doug Anderson
     [not found]                 ` <CAD=FV=UfdEN4MzAwZLWDTQ4qMakhchpr063U1e3uk6R96wScJw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-10-27  1:43                   ` Doug Anderson [this message]

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