s not have an EDP version.

Even though Haswell names this register PIPE_CLK_SEL, it will be
renamed to TRANS_CLK_SEL in the future, so let's just start using the
real name that makes more sense and avoids misusage.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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