xf86-video-siliconmotion: Changes to 'master'

[Paulo Cesar Pereira de Andrade]

 src/smi_501.c |  210 +++++++++++++++++++++++++++++++++++-----------------------
 src/smi_501.h |   37 ++++++++--
 2 files changed, 158 insertions(+), 89 deletions(-)

New commits:
commit b32769305275519f7f4d1e0871a71514636ca026
Author: Paulo Cesar Pereira de Andrade <pcpa at mandriva.com.br>
Date:   Wed Oct 1 18:27:27 2008 -0300

    Correct clock programming for the SMI 501/502
    
      The new code is based on the file SM502Clock.pdf provide by SMI engineers
    (many thanks). And now it is expected to work correctly. The few remaining
    details that are unclear (for the extended 502 modesetting mode) should be
    resolved soon, and those are:
    *  MMIO:0x74:bit15 (PLL Output Divided by 2)
    	0: Disable.
    	1: Enable.
       (does this mean it can use a 12MHz clock instead of 24? or anything else?)
    *  Should bit 31 of "current clock" always be set when using the alternate
       mode setting for the 502? The alternate modesetting allows a very closer
       pixel clock programming option, usually with 0 difference from the
       xf86 mode.
    
      I will ask SMI to make SM502Clock.pdf also available in the ftp site, it
    is just 3 pages, or possibly even better, an update for the existing
    documentation.