CHV_CMN_DW14
tmp = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port));
vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port), tmp);
val = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port));
vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port), val);
vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port),
vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port)) |