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From: Roger Quadros <rogerq@ti.com>
To: "Munegowda, Keshava" <keshava_mgowda@ti.com>
Cc: Kevin Hilman <khilman@ti.com>,
	linux-omap@vger.kernel.org, linux-usb@vger.kernel.org,
	balbi@ti.com, sameo@linux.intel.com, notasas@gmail.com
Subject: Re: [PATCH] OMAP: USB : Fix the EHCI enumeration and core retention issue
Date: Mon, 23 Jul 2012 11:33:06 +0300	[thread overview]
Message-ID: <500D0C42.8030508@ti.com> (raw)
In-Reply-To: <CAP05o4+6LxwdwCUQF_0b6dCQ9JQarNeUBzO=qgdUgnreMtDeMg@mail.gmail.com>

Hi,

On 06/22/2012 05:43 PM, Munegowda, Keshava wrote:
> On Fri, Jun 22, 2012 at 7:41 PM, Kevin Hilman <khilman@ti.com> wrote:
>> "Munegowda, Keshava" <keshava_mgowda@ti.com> writes:
>>
>> [...]
>>

>>
>> You are not reading what I write.
>>
>> To repeat: your patch fixes the oops during boot, and the suspend hang
>> and now I see CORE hit retention in *suspend*.
> 
> thanks !
> 
>>
>> However,  CORE does still not hit retention during *idle*.
> 
> here is the problem.
> 
> usb host retention in idle is not supported till now.
> in current code, usb host cuts clock only in driver suspend not in bus
> suspend ( auto suspend).
> usb host driver need to use the  io daisy chain framework through io wakeup.
> I will post the patches once ehci remote wakeup features stabilized in
> omap3, omap4 and omap5 too.
> 

We are talking about CORE retention support during idle. How is IO daisy
chaining related to that? Doesn't IO daisy chain only apply when device
hits OFF?

regards,
-roger

  parent reply	other threads:[~2012-07-23  8:33 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-21 13:42 [PATCH] OMAP: USB : Fix the EHCI enumeration and core retention issue Keshava Munegowda
     [not found] ` <1340286132-20634-1-git-send-email-keshava_mgowda-l0cyMroinI0@public.gmane.org>
2012-06-21 13:43   ` Munegowda, Keshava
2012-06-21 19:02     ` Kevin Hilman
     [not found]       ` <87fw9o32v2.fsf-l0cyMroinI0@public.gmane.org>
2012-06-22  7:30         ` Munegowda, Keshava
     [not found]           ` <CAP05o4KxWFjCCP05KzQgo4vWLdvOCeT=DWGXvEEnyWkomH1tXA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-06-22 10:30             ` Felipe Balbi
     [not found]               ` <20120622103050.GG28472-S8G//mZuvNWo5Im9Ml3/Zg@public.gmane.org>
2012-06-22 14:14                 ` Kevin Hilman
2012-06-22 15:03                   ` Russ Dill
     [not found]                     ` <CA+Bv8XY-_x+Vh+D8sec5tvL9MkOYFKnts1WBp_AsCck2y6QNZg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-06-22 15:11                       ` Munegowda, Keshava
     [not found]                   ` <87ehp71liv.fsf-l0cyMroinI0@public.gmane.org>
2012-06-22 20:36                     ` Felipe Balbi
2012-06-25 18:35                       ` Kevin Hilman
     [not found]                         ` <87d34nfdei.fsf-l0cyMroinI0@public.gmane.org>
2012-07-02 16:54                           ` Kevin Hilman
     [not found]                             ` <871uku85o8.fsf-l0cyMroinI0@public.gmane.org>
2012-07-02 17:05                               ` Russ Dill
     [not found]                                 ` <CA+Bv8XaC64NChdcinrxagRYLZyTG7c05nDYy2EbfH-gfZUxnuw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-07-02 17:55                                   ` Kevin Hilman
2012-07-02 18:15                                     ` Samuel Ortiz
2012-07-03  0:14                               ` Kevin Hilman
2012-07-03  6:45                                 ` Munegowda, Keshava
2012-07-03  6:47                               ` Munegowda, Keshava
     [not found]                                 ` <CAP05o4+hxt6zY0AxK5aNW7a3Hyiw0_krP9=XK_prN5=Uk2SxmA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-07-03  7:22                                   ` Munegowda, Keshava
2012-07-04 13:33                                     ` Kevin Hilman
2012-07-05 11:19                                       ` Samuel Ortiz
2012-07-06 10:00                                         ` Munegowda, Keshava
     [not found]                                           ` <CAP05o4JEx0uSCH+mZzLhoV479A00uUumvYY_-b8dQ9j_5Awumw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-07-06 11:59                                             ` Munegowda, Keshava
2012-07-11 10:29                                               ` Samuel Ortiz
2012-07-11 12:53                                                 ` Munegowda, Keshava
2012-07-11 14:23                                                   ` Kevin Hilman
     [not found]                                                     ` <874npenzq0.fsf-l0cyMroinI0@public.gmane.org>
2012-07-12  6:41                                                       ` Munegowda, Keshava
     [not found]                                                         ` <CAP05o4+hQh-weQ_hfFMxY-byEijwDF3e-D9U5gwh6yRD7C_=Zw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-07-19 10:17                                                           ` Munegowda, Keshava
2012-06-22 14:11             ` Kevin Hilman
2012-06-22 14:35               ` Alan Stern
     [not found]               ` <87vcij1loh.fsf-l0cyMroinI0@public.gmane.org>
2012-06-22 14:43                 ` Munegowda, Keshava
2012-06-22 18:49                   ` Kevin Hilman
2012-07-23  8:33                   ` Roger Quadros [this message]
     [not found]                     ` <500D0C42.8030508-l0cyMroinI0@public.gmane.org>
2012-07-23 11:27                       ` Munegowda, Keshava
2012-07-19 10:20 ` Felipe Balbi
     [not found]   ` <20120719102013.GJ14302-S8G//mZuvNWo5Im9Ml3/Zg@public.gmane.org>
2012-07-19 12:02     ` Munegowda, Keshava
2012-07-19 22:54     ` Greg KH
     [not found]       ` <20120719225405.GB32547-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2012-07-19 22:55         ` Greg KH
     [not found]           ` <20120719225523.GC32547-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2012-07-20  8:06             ` Munegowda, Keshava
2012-07-19 15:15   ` Alan Stern

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