IT_OVR
if (dcmi->misr & IT_OVR) {
reg_set(dcmi->regs, DCMI_ICR, IT_FRAME | IT_OVR | IT_ERR);
reg_set(dcmi->regs, DCMI_IER, IT_FRAME | IT_OVR | IT_ERR);
reg_set(dcmi->regs, DCMI_IER, IT_OVR | IT_ERR);
reg_clear(dcmi->regs, DCMI_IER, IT_FRAME | IT_OVR | IT_ERR);