linux-kernel - Re: [PATCH] video: fbdev: use msecs_to

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Date:	Fri, 20 Feb 2015 15:20:06 +0100
From:	Nicholas Mc Guire <der.herr@...r.at>
To:	Tomi Valkeinen <tomi.valkeinen@...com>
Cc:	Nicholas Mc Guire <hofrat@...dl.org>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Jingoo Han <jg1.han@...sung.com>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	Fabian Frederick <fabf@...net.be>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Wolfram Sang <wsa@...-dreams.de>, linux-fbdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] video: fbdev: use msecs_to_jiffies for time conversion

On Fri, 20 Feb 2015, Tomi Valkeinen wrote:

> On 20/02/15 16:01, Nicholas Mc Guire wrote:
> 
> >>>  	pr_debug("%s(): task ending\n", __func__);
> >>> @@ -1460,7 +1460,7 @@ static void pxafb_disable_controller(struct pxafb_info *fbi)
> >>>  #ifdef CONFIG_FB_PXA_SMARTPANEL
> >>>  	if (fbi->lccr0 & LCCR0_LCDT) {
> >>>  		wait_for_completion_timeout(&fbi->refresh_done,
> >>> -				200 * HZ / 1000);
> >>> +				msecs_to_jiffies(200);
> >>
> >> That will not compile.
> 
> >  No compile warning or errors
> > 
> >  could you send me the compile error message and the toolchain you
> >  are using - this change should not really have any noticable impact.
> 
> I didn't compile it. It's missing a closing parenthesis.
> 
> This is one reason I'm not very fond of cleanups to drivers that the
> patch sender cannot test... They may cause more problems than they help.
>
That was the intent of compile testing the patch but it seems
that it was not covered by the config in use - sorry for that, it was 
missing the    [*]   PXA Smartpanel LCD support so
root@...ian:~/linux-next# grep CONFIG_FB_PXA_SMARTPANEL .config
# CONFIG_FB_PXA_SMARTPANEL is not set

The motivation for the cleanup simply was code reasdability - will fix this up
and compile check with a proper config.

thx!
hofrat 
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