docs: fb: Remove matroxfb scrollback boot option

In commit 50145474f6ef ("fbcon: remove soft scrollback code"), the
framebuffer scrollback mode was removed, but the documentation was not
updated.  Properly update the documentation by removing the option that
is no longer pressent, and removed the particular scrollback option.

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/e5187e70faf8237825a142313802983a6c214baa.1600333774.git.unixbhaskar@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

diff --git a/Documentation/fb/matroxfb.rst b/Documentation/fb/matroxfb.rst
index f1859d98606e69bbb797f2a5f5ff31fa27c7020e..6158c49c857148364c410985bfd07b369d6a9615 100644 (file)
--- a/Documentation/fb/matroxfb.rst
+++ b/Documentation/fb/matroxfb.rst
@@ -317,8 +317,6 @@ Currently there are following known bugs:
  - interlaced text mode is not supported; it looks like hardware limitation,
    but I'm not sure.
  - Gxx0 SGRAM/SDRAM is not autodetected.
- - If you are using more than one framebuffer device, you must boot kernel
-   with 'video=scrollback:0'.
  - maybe more...
 
 And following misfeatures: