QUP_RESET_STATE
ret = qup_i2c_poll_state(qup, QUP_RESET_STATE);
ret = qup_i2c_change_state(qup, QUP_RESET_STATE);
ret = qup_i2c_poll_state(qup, QUP_RESET_STATE);
qup_i2c_change_state(qup, QUP_RESET_STATE);
qup_i2c_change_state(qup, QUP_RESET_STATE);
writel(QUP_RESET_STATE, qup->base + QUP_STATE);
writel(QUP_RESET_STATE, qup->base + QUP_STATE);