snd_ice1712_set_input_clock_source
snd_ice1712_set_input_clock_source(ice, is_spdif_master(ice));
snd_ice1712_set_input_clock_source(ice, 0);
snd_ice1712_set_input_clock_source(ice, 1);
snd_ice1712_set_input_clock_source(ice, 0);