dw_mipi_csi2rx_read
val = dw_mipi_csi2rx_read(csi2, DW_MIPI_CSI2RX_PHY_TST_CTRL0);
val = dw_mipi_csi2rx_read(csi2, DW_MIPI_CSI2RX_PHY_TST_CTRL0);
dw_mipi_csi2rx_read(csi2, DW_MIPI_CSI2RX_PHY_SHUTDOWNZ);
dw_mipi_csi2rx_read(csi2, DW_MIPI_CSI2RX_DPHY_RSTZ);
val = dw_mipi_csi2rx_read(csi2, DW_MIPI_CSI2RX_IPI_MODE);
val = dw_mipi_csi2rx_read(csi2, DW_MIPI_CSI2RX_IPI_MODE);
ret = read_poll_timeout(dw_mipi_csi2rx_read, val,