DPHY_PHY_TST_CTRL1
u32 ctrl1 = dw_csi2_host_read(dphy, DPHY_PHY_TST_CTRL1);
u32 ctrl1 = dw_csi2_host_read(dphy, DPHY_PHY_TST_CTRL1);
dw_csi2_host_write(dphy, DPHY_PHY_TST_CTRL1,
u32 ctrl1 = dw_csi2_host_read(dphy, DPHY_PHY_TST_CTRL1);
dw_csi2_host_write(dphy, DPHY_PHY_TST_CTRL1, (ctrl1 & ~0xff) | val);