Drop support for non-programmable clocks.

From README.ati:

Clocks for supported programmable clock generators:

  The driver currently supports all programmable clock generators known
  to exist on Mach64 adapters.

Clocks for unsupported programmable clock generators:

  This case is unlikely to occur, but is documented for the sake of
  completeness.

Thus:

- check for (pATI->ProgrammableClock > ATI_CLOCK_FIXED) &&
            (pATI->ProgrammableClock < ATI_CLOCK_MAX)

- drop "probe_clocks" option

- pATIHW->ClockUnmap is no longer used

- pATIHW->ClockMap is only used with NewHW.crtc which is always ATI_CRTC_MACH64
  and has the identity map, so drop it

- (pATI->ProgrammableClock != ATI_CLOCK_INTERNAL) => (pATI->depth <= 8)

1 files changed, 0 insertions, 7 deletions

diff --git a/src/atioption.c b/src/atioption.c
index 42fbd56e..7ef580bf 100644
--- a/src/atioption.c
+++ b/src/atioption.c
@@ -178,13 +178,6 @@ const OptionInfoRec ATIPublicOptions[] =
         FALSE
     },
     {
-        ATI_OPTION_PROBE_CLOCKS,
-        "probe_clocks",
-        OPTV_BOOLEAN,
-        {0, },
-        FALSE
-    },
-    {
         ATI_OPTION_REFERENCE_CLOCK,
         "reference_clock",
         OPTV_FREQ,