[PATCH] fix linker trouble with CONFIG_FB_RIVA_I2C=y and modular I2C

From: Adrian Bunk <bunk@fs.tum.de>

> This version causes linker trouble with
> CONFIG_I2C=m
> CONFIG_I2C_ALGOBIT=m
> CONFIG_FB_RIVA_I2C=y
>
>   CC      init/version.o
>   LD      init/built-in.o
>   LD      .tmp_vmlinux1
> drivers/built-in.o(.text+0xda101): In function `riva_setup_i2c_bus':
> : undefined reference to `i2c_bit_add_bus'
> drivers/built-in.o(.text+0xda218): In function `riva_delete_i2c_busses':
> : undefined reference to `i2c_bit_del_bus'
> drivers/built-in.o(.text+0xda237): In function `riva_delete_i2c_busses':
> : undefined reference to `i2c_bit_del_bus'
> drivers/built-in.o(.text+0xda2c9): In function `riva_do_probe_i2c_edid':
> : undefined reference to `i2c_transfer'
> make: *** [.tmp_vmlinux1] Error 1
>...

The problem is:
FB_RIVA=y
FB_RIVA_I2C=y
I2C=m
I2C_ALGOBIT=m

The patch below fixes this.

Besides this, it contains:
- help text by Antonino A. Daplas
- converted spaces to tabs
- it was forgotten that FB_RIVA_I2C requires I2C_ALGOBIT
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/video/Kconfig

@@ -424,6 +424,8 @@ config E1355_FB_BASE
 config FB_RIVA
 	tristate "nVidia Riva support"
 	depends on FB && PCI
+	select I2C_ALGOBIT if FB_RIVA_I2C
+	select I2C if FB_RIVA_I2C
 	help
 	  This driver supports graphics boards with the nVidia Riva/Geforce
 	  chips.
@@ -434,7 +436,7 @@ config FB_RIVA
 
 config FB_RIVA_I2C
        bool "Enable DDC Support"
-       depends on FB_RIVA && I2C
+       depends on FB_RIVA
        help
 	  This enables I2C support for nVidia Chipsets.  This is used
 	  only for getting EDID information from the attached display