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From: Rajendra Nayak <rnayak@ti.com>
To: Paul Walmsley <paul@pwsan.com>
Cc: "Cousson, Benoit" <b-cousson@ti.com>,
	"linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>,
	"tony@atomide.com" <tony@atomide.com>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH 3/3] ARM: OMAP: hwmod: Look for hwmod/module level context lost count if supported
Date: Fri, 16 Dec 2011 17:51:20 +0530	[thread overview]
Message-ID: <4EEB37C0.1070307@ti.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1112160422150.12660@utopia.booyaka.com>

On Friday 16 December 2011 04:53 PM, Paul Walmsley wrote:
> Hi
>
> On Fri, 16 Dec 2011, Paul Walmsley wrote:
>
>> + * XXX Will not work correctly if the RM_*_CONTEXT register
>> + * offset is 0 -- probably a flag should be used to avoid this
>> + * situation, rather than testing @oh->prcm.omap4.context_offs.  No
>> + * return value.
>
> By the way, I'm also worried about this case.  Am wondering if we should
> add a flag here just to be sure, rather than testing the offset.
> Thoughts?

I am not sure if we even have any modules on OMAP4 which *do not*
support module level context loss status and for which we need to fall
back on pwrdm level status. So maybe we could even get rid of the check
for a valid context_offset altogether and expect it to be populated for
all modules as we do with the clkctrl offset.

>
>
> - Paul


WARNING: multiple messages have this Message-ID (diff)
From: rnayak@ti.com (Rajendra Nayak)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/3] ARM: OMAP: hwmod: Look for hwmod/module level context lost count if supported
Date: Fri, 16 Dec 2011 17:51:20 +0530	[thread overview]
Message-ID: <4EEB37C0.1070307@ti.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1112160422150.12660@utopia.booyaka.com>

On Friday 16 December 2011 04:53 PM, Paul Walmsley wrote:
> Hi
>
> On Fri, 16 Dec 2011, Paul Walmsley wrote:
>
>> + * XXX Will not work correctly if the RM_*_CONTEXT register
>> + * offset is 0 -- probably a flag should be used to avoid this
>> + * situation, rather than testing @oh->prcm.omap4.context_offs.  No
>> + * return value.
>
> By the way, I'm also worried about this case.  Am wondering if we should
> add a flag here just to be sure, rather than testing the offset.
> Thoughts?

I am not sure if we even have any modules on OMAP4 which *do not*
support module level context loss status and for which we need to fall
back on pwrdm level status. So maybe we could even get rid of the check
for a valid context_offset altogether and expect it to be populated for
all modules as we do with the clkctrl offset.

>
>
> - Paul

  reply	other threads:[~2011-12-16 12:21 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-11-03 10:54 [PATCH 0/3] Support omap_pm_get_dev_context_loss_count() for OMAP4 Rajendra Nayak
2011-11-03 10:54 ` Rajendra Nayak
2011-11-03 10:54 ` [PATCH 1/3] ARM: OMAP: hmwod: Add support for per hwmod/module context lost count Rajendra Nayak
2011-11-03 10:54   ` Rajendra Nayak
2011-11-03 10:54 ` [PATCH 2/3] ARM: OMAP: hwmod: Update/Clear module specific context lost counters Rajendra Nayak
2011-11-03 10:54   ` Rajendra Nayak
2011-11-03 10:54 ` [PATCH 3/3] ARM: OMAP: hwmod: Look for hwmod/module level context lost count if supported Rajendra Nayak
2011-11-03 10:54   ` Rajendra Nayak
2011-11-29 18:10   ` Cousson, Benoit
2011-11-29 18:10     ` Cousson, Benoit
2011-12-02  4:46     ` Rajendra Nayak
2011-12-02  4:46       ` Rajendra Nayak
2011-12-16 11:16       ` Paul Walmsley
2011-12-16 11:16         ` Paul Walmsley
2011-12-16 11:23         ` Paul Walmsley
2011-12-16 11:23           ` Paul Walmsley
2011-12-16 12:21           ` Rajendra Nayak [this message]
2011-12-16 12:21             ` Rajendra Nayak
2011-12-16 12:38             ` Paul Walmsley
2011-12-16 12:38               ` Paul Walmsley
2011-12-16 12:17         ` Rajendra Nayak
2011-12-16 12:17           ` Rajendra Nayak
2011-12-16 12:38           ` Paul Walmsley
2011-12-16 12:38             ` Paul Walmsley
2011-12-16 12:41             ` Rajendra Nayak
2011-12-16 12:41               ` Rajendra Nayak

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