REG_SM0CTL1_REG
ioread32(i2c->base + REG_SM0CTL1_REG),
u32 ack = readl_relaxed(i2c->base + REG_SM0CTL1_REG);
iowrite32(SM0CTL1_START | SM0CTL1_TRI, i2c->base + REG_SM0CTL1_REG);
iowrite32(SM0CTL1_STOP | SM0CTL1_TRI, i2c->base + REG_SM0CTL1_REG);
i2c->base + REG_SM0CTL1_REG);
ret = readl_relaxed_poll_timeout(i2c->base + REG_SM0CTL1_REG,