SSI_GDD_MPU_IRQ_STATUS_REG
status_reg = readl(sys + SSI_GDD_MPU_IRQ_STATUS_REG);
writel_relaxed(status_reg, sys + SSI_GDD_MPU_IRQ_STATUS_REG);
status_reg = readl(sys + SSI_GDD_MPU_IRQ_STATUS_REG);
readl(sys + SSI_GDD_MPU_IRQ_STATUS_REG));
writel(0xff, omap_ssi->sys + SSI_GDD_MPU_IRQ_STATUS_REG);
writel(val, omap_ssi->sys + SSI_GDD_MPU_IRQ_STATUS_REG);