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From: Tony Lindgren <tony@atomide.com>
To: Paul Walmsley <paul@pwsan.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>,
	Nishanth Menon <nm@ti.com>,
	linux-omap@vger.kernel.org
Subject: Re: [PATCH v2] omap4: Fix multi-omap boot with reset un-used clocks
Date: Mon, 31 May 2010 15:48:25 +0300	[thread overview]
Message-ID: <20100531124824.GF30216@atomide.com> (raw)
In-Reply-To: <alpine.DEB.2.00.1005191708320.27473@utopia.booyaka.com>

* Paul Walmsley <paul@pwsan.com> [100520 02:05]:
> Hi,
> 
> On Wed, 19 May 2010, Santosh Shilimkar wrote:
> 
> > This patch uses "ENABLE_ON_INIT" flag on the emif clock nodes
> > to avoid the emif clk getting cut as part of reset un-used clock
> > routine which prevents boot.
> > 
> > Since omap4 "omap2_clk_init()" calls "clk_enable_init_clocks()"
> > which increases the usecount on all ENABLE_ON_INIT clocks, it
> > prevents "omap2_clk_disable_unused()" from disabling the clock.
> > 
> > The real fix is to have driver for EMIF and do clock get/enable
> > as part of it. The EMIF driver is planned to be done HWMOD way
> > so till that available to keep omap3_defconfig booting on OMAP4430,
> > this patch is necessary.
> > (Will updated the auto-gen script for 44xx accordingly)
> > 
> > The fix was suggested by Paul Walmsley
> > 
> > Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
> > Cc: Paul Walmsley <paul@pwsan.com>
> 
> Thanks, I've added Nishanth's Tested-by: and fixed the patch changelog; 
> the following patch is now queued for 2.6.35-rc, unless there are any 
> further comments.

FYI, I'll also added this into omap-testing branch while we're waiting
for your clock fixes branch to be available.

Regards,

Tony

  parent reply	other threads:[~2010-05-31 12:48 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-05-19 16:38 [PATCH v2] omap4: Fix multi-omap boot with reset un-used clocks Santosh Shilimkar
2010-05-19 20:01 ` Nishanth Menon
2010-05-20  1:00   ` Tony Lindgren
2010-05-20  1:03     ` Nishanth Menon
2010-05-20  1:06       ` Tony Lindgren
2010-05-20  1:09         ` Nishanth Menon
2010-05-20  1:24           ` Tony Lindgren
2010-05-20  1:49             ` Nishanth Menon
2010-05-20  4:57               ` Shilimkar, Santosh
2010-05-20 10:30                 ` Arce, Abraham
2010-05-20 10:28               ` Shilimkar, Santosh
2010-05-19 23:10 ` Paul Walmsley
2010-05-20  4:58   ` Shilimkar, Santosh
2010-05-31 12:48   ` Tony Lindgren [this message]
2010-06-16  9:22     ` Paul Walmsley
2010-06-16 16:09       ` Tony Lindgren

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