DPHY_PHY_TST_CTRL0
u32 ctrl0 = dw_csi2_host_read(dphy, DPHY_PHY_TST_CTRL0);
dw_csi2_host_write(dphy, DPHY_PHY_TST_CTRL0, (ctrl0 & ~1) | val);
u32 ctrl0 = dw_csi2_host_read(dphy, DPHY_PHY_TST_CTRL0);
dw_csi2_host_write(dphy, DPHY_PHY_TST_CTRL0, (ctrl0 & ~2) | (val << 1));