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From: Archit Taneja <a0393947@ti.com>
To: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-omap@vger.kernel.org, linux-fbdev@vger.kernel.org
Subject: Re: [PATCH 15/17] OMAPDSS: remove extra_info completion code
Date: Thu, 06 Sep 2012 13:47:38 +0000	[thread overview]
Message-ID: <5048A6AA.50009@ti.com> (raw)
In-Reply-To: <1346936681.2737.61.camel@deskari>

On Thursday 06 September 2012 06:34 PM, Tomi Valkeinen wrote:
> On Wed, 2012-09-05 at 19:01 +0530, Archit Taneja wrote:
>> On Wednesday 05 September 2012 01:55 PM, Tomi Valkeinen wrote:
>>> Now that fifo merge has been removed, nobody uses the extra_info related
>>> completion code, which can be removed.
>>
>> I think this might come into use when we fix the usage of channel out
>> field. That is, since channel out is an immediate write field, when we
>> set a new manager for an overlay, we may need to wait till the overlay
>> disable kicks in, only then we should change channel out.
>>
>> For this, we would need some wait for extra_info, right?
>
> Hmm, yes, I think you are right. Previously the ovl_disable waited until
> the overlay is not used anymore, but now it doesn't.
>
> So I think I need to add wait_pending_extra_info_updates() call to the
> beginning of dss_ovl_set_manager(). Or, should it be in unset_manager...
> I think unset is better, then a "free" overlay always disabled also in
> the HW level.

Yes, I also think it should be in unset_manager. One option could be to 
leave the wait_pending_extra_info_updates() in ovl_disable itself, as it 
was before. But that would force us to use mutexes there, and we'd 
rather have overlay enabling and disabling as a non blocking thing.

Archit


  reply	other threads:[~2012-09-06 13:47 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-05  8:25 [PATCH 00/17] Misc OMAP DSS patches part 2 Tomi Valkeinen
2012-09-05  8:25 ` [PATCH 01/17] OMAPDSS: Taal: use devm_* functions Tomi Valkeinen
2012-09-05  8:25 ` [PATCH 02/17] OMAPFB1: remove unnecessary includes Tomi Valkeinen
2012-09-05  8:25 ` [PATCH 03/17] OMAPFB1: remove a non-used table Tomi Valkeinen
2012-09-05  8:25 ` [PATCH 04/17] OMAPDSS: remove unnecessary includes Tomi Valkeinen
2012-09-05  8:25 ` [PATCH 05/17] OMAPFB: clear framebuffers with CPU Tomi Valkeinen
2012-09-05  8:25 ` [PATCH 06/17] OMAPDSS: VRAM: Remove clearing with sDMA Tomi Valkeinen
2012-09-05  8:25 ` [PATCH 07/17] OMAPDSS: Taal: Reogranize for device tree Tomi Valkeinen
2012-09-05  8:25 ` [PATCH 08/17] OMAPDSS: TFP410: use devm_gpio_request_one Tomi Valkeinen
2012-09-05  8:25 ` [PATCH 09/17] OMAPDSS: split overlay sysfs code Tomi Valkeinen
2012-09-05  8:25 ` [PATCH 10/17] OMAPDSS: split manager " Tomi Valkeinen
2012-09-05  8:25 ` [PATCH 11/17] OMAPDSS: clean up dss_mgr_set_lcd_config Tomi Valkeinen
2012-09-05  8:25 ` [PATCH 12/17] OMAPDSS: clean up dss_mgr_set_timings Tomi Valkeinen
2012-09-05  9:27   ` Archit Taneja
2012-09-05 10:41     ` Tomi Valkeinen
2012-09-05 11:46       ` Archit Taneja
2012-09-05 11:41         ` Tomi Valkeinen
2012-09-05 11:48           ` Archit Taneja
2012-09-07 10:11   ` Tomi Valkeinen
2012-09-07 11:48     ` Archit Taneja
2012-09-05  8:25 ` [PATCH 13/17] Revert "OMAPDSS: APPLY: add fifo-merge support" Tomi Valkeinen
2012-09-05 13:55   ` Archit Taneja
2012-09-06 12:55     ` Tomi Valkeinen
2012-09-05  8:25 ` [PATCH 14/17] Revert "OMAPDSS: APPLY: add fifo merge support funcs" Tomi Valkeinen
2012-09-05  8:25 ` [PATCH 15/17] OMAPDSS: remove extra_info completion code Tomi Valkeinen
2012-09-05 13:43   ` Archit Taneja
2012-09-06 13:04     ` Tomi Valkeinen
2012-09-06 13:47       ` Archit Taneja [this message]
2012-09-06 13:42         ` Tomi Valkeinen
2012-09-06 14:13           ` Archit Taneja
2012-09-06 14:29             ` Tomi Valkeinen
2012-09-05  8:25 ` [PATCH 16/17] OMAPDSS: Improve fifo management code Tomi Valkeinen
2012-09-05  8:25 ` [PATCH 17/17] OMAPDSS: Use WB fifo for GFX overlay Tomi Valkeinen

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