HISI_I2C_FRAME_CTRL
reg = readl(ctlr->iobase + HISI_I2C_FRAME_CTRL);
writel(reg, ctlr->iobase + HISI_I2C_FRAME_CTRL);
reg = readl(ctlr->iobase + HISI_I2C_FRAME_CTRL);
writel(reg, ctlr->iobase + HISI_I2C_FRAME_CTRL);