ICE_CGU_R11_SYNCE_S_BYP_CLK
rclk_bits = FIELD_GET(ICE_CGU_R11_SYNCE_S_BYP_CLK, reg);
active_clk = FIELD_GET(ICE_CGU_R11_SYNCE_S_BYP_CLK, val);
val &= ~ICE_CGU_R11_SYNCE_S_BYP_CLK;
val |= FIELD_PREP(ICE_CGU_R11_SYNCE_S_BYP_CLK, first_mux);