linux-kernel - Re: [PATCH 5/5 v4] mfd: omap: usb: Runtime PM support

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Date:	Mon, 29 Aug 2011 13:47:39 -0700
From:	Kevin Hilman <khilman@...com>
To:	Keshava Munegowda <keshava_mgowda@...com>
Cc:	linux-usb@...r.kernel.org, linux-omap@...r.kernel.org,
	linux-kernel@...r.kernel.org, balbi@...com, gadiyar@...com,
	sameo@...ux.intel.com, parthab@...ia.ti.com, tony@...mide.com,
	b-cousson@...com, paul@...an.com, johnstul@...ibm.com,
	vishwanath.bs@...com, Jassi Brar <jaswinder.singh@...aro.org>
Subject: Re: [PATCH 5/5 v4] mfd: omap: usb: Runtime PM support

Kevin Hilman <khilman@...com> writes:

> Keshava Munegowda <keshava_mgowda@...com> writes:
>
>> From: Keshava Munegowda <Keshava_mgowda@...com>
>>
>> The usbhs core driver does not enable/disable the intefrace and
>> fucntional clocks; These clocks are handled by hwmod and runtime pm,
>> hence insted of the clock enable/disable, the runtime pm APIS are
>> used. however,the port clocks are handled by the usbhs core.
>>
>> Signed-off-by: Keshava Munegowda <keshava_mgowda@...com>
>
> General comment: all usage of pm_runtime_put_sync() can likely be
> replaced by the asynchronous versions.  I don't currently see why the
> synchronous verions are needed here.
>
> Other than that, the runtime PM parts of this look OK to me.  After
> changing to asynchonous puts, feel free to add:
>
> Reviewed-by: Kevin Hilman <khilman@...com>

oops, this should've been in response to your v8 version.

Kevin

>
> Also, after a quick glance, it looks like this version of the series
> addresses the problems seen by Jassi Brar with the TLL reset[1].  Please
> confirm.
>
> Speaking of which, it's helpful to Cc folks who have had comments on
> previous versions of your series so they are sure they're previous
> issues are addressed.   I've Cc'd Jassi Brar.
>
> Thanks,
>
> Kevin
>
> [1] http://marc.info/?l=linux-omap&m=130921260703865&w=2
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