linux-kernel - Re: [PATCH 5/6] Clocklib: Use correct clock for IrDA on pxa

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Date:	Wed, 9 Apr 2008 23:39:12 +0400
From:	Dmitry <dbaryshkov@...il.com>
To:	"Russell King" <rmk+lkml@....linux.org.uk>
Cc:	"Alan Cox" <alan@...rguk.ukuu.org.uk>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, haavard.skinnemoen@...el.com,
	lethal@...ux-sh.org, philipp.zabel@...il.com, pavel@....cz,
	tony@...mide.com, paul@...an.com
Subject: Re: [PATCH 5/6] Clocklib: Use correct clock for IrDA on pxa

Hi, Russell,

2008/4/9, Russell King <rmk+lkml@....linux.org.uk>:
> On Wed, Apr 09, 2008 at 08:09:16PM +0100, Alan Cox wrote:
>  > > Basically what I'm thinking is a serial_core function which could be
>  > > called to say "I'm an IrDA driver, and I think I should be using the
>  > > serial port located <here>, please give me control of it" and it'd
>  > > pass over the various parameters including the struct device for it.
>  > > Or something like that.
>  >
>  > It's called a line discipline, we've had them for many years. We may need
>  > a way for ldiscs and drivers to co-operate a bit more but these days we
>  > support proper buffering and arbitary baud rates (except on a few
>  > platforms whose maintainers are not paying attention ;)).

That would be a good thing to have.

> I feel that's a "it would be nice if" solution - and something worth
>  aiming for, but the amount of work required to get there is not going
>  to be insignificant.
>
>  Maybe Dmitry can bite his nails on the NULL device clklib issue for a
>  while as this transition is happening ?  (Though we need to find someone
>  to make it happen... we need volunteers!)

Russell, I'd propose to agree to bind PXA's IrDA to STUARTCLK and
leave UARTCLK function to real pxa uart driver. If you would oppose, I
won't have any choises other that to agree with it.

-- 
With best wishes
Dmitry
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