IRER
i2s_write_reg(dev->i2s_base, IRER, 1);
i2s_write_reg(dev->i2s_base, IRER, 0);
writel(1, kmb_i2s->i2s_base + IRER);
writel(0, kmb_i2s->i2s_base + IRER);
writel(0, kmb_i2s->i2s_base + IRER);