CSID_RDI_IRQ_SUBSAMPLE_PERIOD
writel(val, csid->base + CSID_RDI_IRQ_SUBSAMPLE_PERIOD(port));
writel_relaxed(val, csid->base + CSID_RDI_IRQ_SUBSAMPLE_PERIOD(port));
writel(val, csid->base + CSID_RDI_IRQ_SUBSAMPLE_PERIOD(port));