Use the encoder name passed by the driver if non-NULL, otherwise fall
back to the old style name.
Signed-off-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1449592922-5545-5-git-send-email-ville.syrjala@linux.intel.com