linux-kernel - Re: [PATCH v2 2/7] ARM: OMAP1: ams-delta: convert latches to basic_mmio

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Date:	Tue, 20 Dec 2011 02:18:02 +0100
From:	Janusz Krzysztofik <jkrzyszt@....icnet.pl>
To:	Tony Lindgren <tony@...mide.com>
Cc:	linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Grant Likely <grant.likely@...retlab.ca>
Subject: Re: [PATCH v2 2/7] ARM: OMAP1: ams-delta: convert latches to basic_mmio_gpio

On Tuesday 20 of December 2011 at 02:04:46, Tony Lindgren wrote:
> * Janusz Krzysztofik <jkrzyszt@....icnet.pl> [111219 16:28]:
> > On Tuesday 20 of December 2011 at 01:06:00, Tony Lindgren wrote:
> > > 
> > > This part especially looks like it really should be just a regular
> > > device driver under drivers/ somewhere. 
> > 
> > I really don't understand what kind of a driver you might mean here.
> > 
> > The latch_gpios[] table is initially filled with all latch1 and latch2 
> > GPIO pins in order to register and initialize them from the board file 
> > until they are handled by respective existing device drivers (leds, 
> > nand, lcd, serio, serial8250, asoc) instead of those drivers accessing 
> > the latches with those old ams_delta_latch[12]_write() functions. That 
> > table will get almost empty after the transision process is completed, 
> > holding only pins not used by any drivers / connected to unsued devices, 
> > in order to initialize them from the board file for power saving 
> > purposes. A separate driver for the purpose of initializing a few GPIO 
> > pins seems an overkill.
> 
> OK maybe update the comments a bit to describe how that table will
> mostly disappear? It's not obvious from glancing over this patch
> series :)

To be sure, do you mean in-line comments? Or the changelog message?

Janusz
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