TEGRA_CSI_CIL_STATUS
cil_write(csi, portno + 1, TEGRA_CSI_CIL_STATUS, 0xffffffff);
val = cil_read(csi, portno, TEGRA_CSI_CIL_STATUS);
cil_write(csi, portno, TEGRA_CSI_CIL_STATUS, val);
val = cil_read(csi, portno, TEGRA_CSI_CIL_STATUS);
cil_write(csi, portno, TEGRA_CSI_CIL_STATUS, 0xffffffff);
cil_write(csi, portno, TEGRA_CSI_CIL_STATUS, 0xffffffff);