As is mentioned you do not need danger spl for cm
Actually I have a patched version (old now) of both cm5 and cm6 to use the newer radio/spl you have now and let you benefit from the extra ram they provide:
Cm 5: (with post release stabilization patches)
The cm6 kernels are a bit unstable (biggest fault is the battery drain after USB is disconnected). If you find problems update to another kernel, in its time the biff testing 20110222 kernel was popular:
(The 2708+ port is for your radio)
More resent is the froyo version of the ezgb kernel:
(For cm6 use the versions ending in 'f')
The reason cm officially isn't supporting the new radio is this was all released as cm6 went live. Thus to help people move to the new spl (well now not so new) I did try to make it an easy task to get the roms most were using thus have ports of various roms of the time.
Newer roms of course support the new SPL by default.
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