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Documentation/fb: add documentation for sm712fb 

Create the documentation for SM712. Mention all the supported modes and
how to use.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sudip Mukherjee 2015-08-07 18:31:14 +05:30 committed by Greg Kroah-Hartman
parent 1461d66728
commit 5b55f52d13
1 changed files with 31 additions and 0 deletions
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Documentation/fb/sm712fb.txt Normal file
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What is sm712fb?
=================
This is a graphics framebuffer driver for Silicon Motion SM712 based processors.
How to use it?
==============
Switching modes is done using the video=sm712fb:... boot parameter.
If you want, for example, enable a resolution of 1280x1024x24bpp you should
pass to the kernel this command line: "video=sm712fb:0x31B".
You should not compile-in vesafb.
Currently supported video modes are:
[Graphic modes]
bpp | 640x480 800x600 1024x768 1280x1024
----+--------------------------------------------
8 | 0x301 0x303 0x305 0x307
16 | 0x311 0x314 0x317 0x31A
24 | 0x312 0x315 0x318 0x31B
Missing Features
================
(alias TODO list)
* 2D acceleratrion
* dual-head support