rk_dphy_write_grf
rk_dphy_write_grf(priv, GRF_DPHY_RX0_TESTDIN, test_code);
rk_dphy_write_grf(priv, GRF_DPHY_RX0_TESTEN, 1);
rk_dphy_write_grf(priv, GRF_DPHY_RX0_TESTCLK, 0);
rk_dphy_write_grf(priv, GRF_DPHY_RX0_TESTEN, 0);
rk_dphy_write_grf(priv, GRF_DPHY_RX0_TESTDIN, test_data);
rk_dphy_write_grf(priv, GRF_DPHY_RX0_TESTCLK, 1);
rk_dphy_write_grf(priv, GRF_DPHY_RX0_FORCERXMODE, 0);
rk_dphy_write_grf(priv, GRF_DPHY_RX0_FORCETXSTOPMODE, 0);
rk_dphy_write_grf(priv, GRF_DPHY_RX0_TURNREQUEST, 0);
rk_dphy_write_grf(priv, GRF_DPHY_RX0_TURNDISABLE, 0xf);
rk_dphy_write_grf(priv, GRF_DPHY_RX0_ENABLE,
rk_dphy_write_grf(priv, GRF_DPHY_RX0_TESTCLK, 1);
rk_dphy_write_grf(priv, GRF_DPHY_RX0_TESTCLR, 1);
rk_dphy_write_grf(priv, GRF_DPHY_RX0_TESTCLR, 0);
rk_dphy_write_grf(priv, GRF_DPHY_RX0_ENABLE, 0);