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authorSudip Mukherjee <sudipm.mukherjee@gmail.com>2015-08-07 15:01:14 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-08-08 00:05:01 +0200
commit5b55f52d13d3643e7d62ad2f37f55d8e7f5f0c8e (patch)
treec541e2675621dbb61ca717450a6e70cdbb468779 /Documentation/fb
parentstaging: sm7xxfb: merge sm712fb with fbdev (diff)
downloadlinux-5b55f52d13d3643e7d62ad2f37f55d8e7f5f0c8e.tar.xz
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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>
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-rw-r--r--Documentation/fb/sm712fb.txt31
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diff --git a/Documentation/fb/sm712fb.txt b/Documentation/fb/sm712fb.txt
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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