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SubjectRe: Compile error in 2.6.8-rc2-mm1 - rivafb related
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Date
Hello,


On Fri, 2004-07-30 at 16:14, Adrian Bunk wrote:
> On Thu, Jul 29, 2004 at 02:52:25PM +0200, Grega Fajdiga wrote:
>
> > Good day,
>
> Hi Grega,
>
> > Please CC me, since I'm not subscribed.
> > I just tried to compile 2.6.8-rc2-mm1 and got this error:
> > drivers/built-in.o(.text+0x7e369): In function `rivafb_probe'::
> > undefined reference to `riva_create_i2c_busses'
> > drivers/built-in.o(.text+0x7e4c1): In function `rivafb_probe'::
> > undefined reference to `riva_delete_i2c_busses'
> > drivers/built-in.o(.exit.text+0x1ca): In function `rivafb_remove'::
> > undefined reference to `riva_delete_i2c_busses'
> > make: *** [.tmp_vmlinux1] Error 1
> >...
>
> thanks for this report.
>
> @Nicolas:
> Your rivafb-i2c-fixes patch in -mm causes this with CONFIG_FB_RIVA_I2C=n
> (it moves i2c code from inside an #ifdef CONFIG_FB_RIVA_I2C to a place
> where it isn't guarded by such an #ifdef).

It seems that a wrong patch (an older one) has been integrated in -mm.

I attached the right patch, that I already sent on July 14.

Best regards,

Nicolas
From: Nicolas Boichat <nicolas@boichat.ch>

The I2C busses opened by rivafb were deleted immediately after
reading the EDID, but they should be kept open, so user-space
applications can use them.

They are now deleted when the driver is unloaded.

---

linux/drivers/video/riva/fbdev.c | 13 +++++++++++--
1 files changed, 11 insertions(+), 2 deletions(-)

diff -puN linux/drivers/video/riva/fbdev.c.old linux/drivers/video/riva/fbdev.c
--- linux/drivers/video/riva/fbdev.c.old 2004-07-13 02:05:47.000000000 +0200
+++ linux/drivers/video/riva/fbdev.c 2004-07-13 23:34:27.023199272 +0200
@@ -1773,7 +1773,6 @@ static void riva_get_EDID(struct fb_info
struct riva_par *par = (struct riva_par *) info->par;
int i;

- riva_create_i2c_busses(par);
for (i = par->bus; i >= 1; i--) {
riva_probe_i2c_connector(par, i, &par->EDID);
if (par->EDID) {
@@ -1781,7 +1780,6 @@ static void riva_get_EDID(struct fb_info
break;
}
}
- riva_delete_i2c_busses(par);
#endif
#endif
}
@@ -1933,6 +1931,10 @@ static int __devinit rivafb_probe(struct
}
#endif /* CONFIG_MTRR */

+#ifdef CONFIG_FB_RIVA_I2C
+ riva_create_i2c_busses((struct riva_par *) info->par);
+#endif
+
info->fbops = &riva_fb_ops;
info->fix = rivafb_fix;
riva_get_EDID(info, pd);
@@ -1961,6 +1963,9 @@ static int __devinit rivafb_probe(struct
return 0;

err_out_iounmap_fb:
+#ifdef CONFIG_FB_RIVA_I2C
+ riva_delete_i2c_busses((struct riva_par *) info->par);
+#endif
iounmap(info->screen_base);
err_out_free_base1:
if (default_par->riva.Architecture == NV_ARCH_03)
@@ -1989,6 +1994,10 @@ static void __exit rivafb_remove(struct
if (!info)
return;

+#ifdef CONFIG_FB_RIVA_I2C
+ riva_delete_i2c_busses(par);
+#endif
+
unregister_framebuffer(info);
#ifdef CONFIG_MTRR
if (par->mtrr.vram_valid)
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