linux-kernel - Re: [PATCH] drivers/video/s1d13xxxfb.c as module with dbg

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Message-Id: <20071114002102.5e829113.Kristoffer.ericson@gmail.com>
Date:	Wed, 14 Nov 2007 00:21:02 +0100
From:	Kristoffer Ericson <kristoffer.ericson@...il.com>
To:	"dave chung" <ponstrip@...il.com>
Cc:	"Stanislav Brabec" <utx@...guin.cz>, linux-kernel@...r.kernel.org,
	"Thibaut VARENE" <varenet@...isc-linux.org>
Subject: Re: [PATCH] drivers/video/s1d13xxxfb.c as module with dbg

On Sun, 11 Nov 2007 07:29:35 +0800
"dave chung" <ponstrip@...il.com> wrote:

> On 11/10/07, Stanislav Brabec <utx@...guin.cz> wrote:
> > Attached patch fixes two compilation problems of s1d13xxxfb.c:
> > - Fixes outdated dbg() message to fix compilation error with debugging enabled.
> > - Do not read kernel command line options when compiled as module.
> >
> > Signed-off-by: Stanislav Brabec <utx@...guin.cz>
> >
> > --- linux-2.6.23/drivers/video/s1d13xxxfb.c     2007-10-09 22:31:38.000000000 +0200
> > +++ linux-2.6.23/drivers/video/s1d13xxxfb.c     2007-11-02 16:48:34.000000000 +0100
> > @@ -540,7 +540,7 @@
> >         int ret = 0;
> >         u8 revision;
> >
> > -       dbg("probe called: device is %p\n", dev);
> > +       dbg("probe called: device is %p\n", pdev);
> >
> >         printk(KERN_INFO "Epson S1D13XXX FB Driver\n");
> >
> > @@ -753,8 +753,11 @@
> >  static int __init
> >  s1d13xxxfb_init(void)
> >  {
> > +
> > +#ifndef MODULE
> >         if (fb_get_options("s1d13xxxfb", NULL))
> >                 return -ENODEV;
> > +#endif
> >
> >         return platform_driver_register(&s1d13xxxfb_driver);
> >  }
> >
> >
> >________________________________________________________________________
> > Stanislav Brabec
> > http://www.penguin.cz/~utx
> >
> > -
> > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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> > Please read the FAQ at  http://www.tux.org/lkml/
> >
> 
> we also need to look at splitting out the "chip revision", which is
> currently hard set, as I have had very good results with this driver
> and  chip  S1D13506, which is functionally similar but without the
> external clocking and without teh internal ram.
>  We also have some build dependancies related to  "CONFIG_FB_S1D13XXX"
> and  ics1523 , this chip is not used on the full range of S1D13XXX and
> causes errors in the build , for chips such as S1D13506.
> potentially we could re-use most of the code, but would need a way to
> pass in S1D_CHIP_REV and one or 2 other chip specific data items.

Im all for that. Got 2 platforms (Mobilepro 900c & HP Jornada 720) with both uses S1D13... based chipsets. The driver should
make more room for similiar versions.

> 
> Steve
> -
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