HDP_MUX_SHIFT
#define HDP_MUX_MASK(n) (GENMASK(3, 0) << HDP_MUX_SHIFT(n))
#define HDP_MUX_GPOVAL(n) (0xf << HDP_MUX_SHIFT(n))
mux |= func_selector << HDP_MUX_SHIFT(pin);