omap2+: Add omap_mux_get_by_name

Do this by splitting _omap_mux_init_signal as it already has most
of the necessary features.

Based on an earlier patch by Dan Murphy <dmurphy@ti.com>.

Cc: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
1 file changed