On Fri, Mar 22, 2019 at 01:17:57PM +0800, Yifeng Li wrote: > This commits add information about 32-bit color, 2D acceleration, > as well as adding additional, general information about the hardware > and many existing problems of the sm712fb driver. > > Signed-off-by: Yifeng Li <tomli@xxxxxxxx> > --- > Documentation/fb/sm712fb.txt | 123 +++++++++++++++++++++++++++++++---- > 1 file changed, 110 insertions(+), 13 deletions(-) > > diff --git a/Documentation/fb/sm712fb.txt b/Documentation/fb/sm712fb.txt > index c388442edf51..906b48aa40e4 100644 > --- a/Documentation/fb/sm712fb.txt > +++ b/Documentation/fb/sm712fb.txt > @@ -1,31 +1,128 @@ > What is sm712fb? > ================= > > -This is a graphics framebuffer driver for Silicon Motion SM712 based processors. > +"sm712fb" is a graphics framebuffer driver for Silicon Motion SM710 (LynxEM), > +SM712 (LynxEM+), and SM720 (Lynx3DM, Lynx3DM+, aka. LynxEM4+) series of > +video controllers. This series of video controller is a legacy from ~1998, > +and was used on many classic, "prehistoric" laptops from 1998-2004, such as > +IBM Thinkpad S30 and 240X. It was also used on some servers, industrial > +computers, x86 and non-x86 embedded devices where only basic graphics was > +needed. I think this is wrong. Loongson 3A Notebook was released around 2011-2012 and had SM712. > + > +Notably, Lemote YeeLoong 8089, a MIPS laptop based on the Chinese Loongson <snip> > + * More VGA modes. > * dual-head support > + * hardware cursor support > + > +The first feature is planned to be implemented soon, but the maintainer > +does not receive any monetary or hardware support from any company or OEMs, > +and he has to purchase a test platform personally. The 1998's hardware > +still costs 200 USD+, so don't expected an ETA. If you have a Big-Endian > +platform and willing to help testing, please contact the maintainer, thanks! I am not sure why will you want to mention about monetary or hardware support. Maintainers are supposed to work voluntarily. > + > +Other VGA modes, dual-head, or hardware cursor support should be possible to > +implement, but parts of the code must be rewritten, and there's little demand > +for them on this legacy (retro?) platform, so there's no plan to implement them. > +If you have a genuine need for them, please contact the maintainers. If there is any need for new features then I think the plan should be to make a drm driver. > + > +Maintainers > +================ > + > +This driver is maintained by > + > + * Tom Li <tomli@xxxxxxxx> ?? I didn't know this. MAINTAINERS file doesnot say so. > + * Sudip Mukherjee <sudipm.mukherjee@xxxxxxxxx> > + * Teddy Wang <teddy.wang@xxxxxxxxxxxxxxxxx> > + > +Tom Li was the last contributor of this driver who implemented 2D acceleration, > +and is the main author of this documentation, please send any bug reports or > +requests to Tom, but don't forget to CC other maintainers as well to make everyone > +be informed. There is a MAINTAINERS file to list the maintainers. There is no need to add that in documentation. -- Regards Sudip
