HISI_I2C_FIFO_STATE
reg = readl(ctlr->iobase + HISI_I2C_FIFO_STATE);
fifo_state = readl(ctlr->iobase + HISI_I2C_FIFO_STATE);
fifo_state = readl(ctlr->iobase + HISI_I2C_FIFO_STATE);
fifo_state = readl(ctlr->iobase + HISI_I2C_FIFO_STATE);
fifo_state = readl(ctlr->iobase + HISI_I2C_FIFO_STATE);