Codeigniter displays the auto field of the selected id

I am using the dropdown to display the fields based on the selected id using ajax onchange.

The fields I want to display are the kode_deskripsi and time_in.

This is my view

            <div class="form-group">
                <div class="flex flex-col sm:flex-row items-center mt-3">
                    <label class="sm:w-40 sm:mr-5">Kode Penitipan</label>
                    <select name="kode_penitipan" id="kode_penitipan" class="input w-full border mt-2 flex-1" onchange="getdata(this)">
                        <option>--Pilih Kode Penitipan--</option>
                        <?php foreach ($getKodePenitipan as $key): ?>
                            <option value="<?= $key->kode_penitipan ?>"><?= $key->kode_penitipan ?></option>
                        <?php endforeach ?>
                    </select>
                </div>
            </div>
            <div class="form-group">
                <div class="flex flex-col sm:flex-row items-center mt-3">
                    <label class="sm:w-40 sm:mr-5">Kode Deskripsi</label>
                    <input type="text" name="kode_deskripsi" id="kode_deskripsi" class="input w-full border mt-2 flex-1" readonly>
                </div>
            </div>
            <div class="form-group">
                <div class="flex flex-col sm:flex-row items-center mt-3">
                    <label class="sm:w-40 sm:mr-5">Waktu Masuk</label>
                    <input type="text" name="time_in" id="time_in" class="input w-full border mt-2 flex-1" readonly>
                </div>
            </div>

and this is the javascript that I made in the view file

<script type="text/javascript">
function getdata(kode_penitipan) {
    var kode_penitipan = $("#kode_penitipan").val();
    $.ajax({
        url: '<?php echo site_url('transaksi/getPenitip') ?>',
        data: "kode_penitipan="+kode_penitipan,
        success: function (data){
            // $('#kode_deskripsi').val(data.kode_deskripsi);
            // $('#time_in').val(data.time_in);
            console.log(data);
        }
    });
}

public function getPenitip()
{
    $kode_penitipan = $this->input->post('kode_penitipan');
    // $query = $this->db->query('penitipan')->where('kode_penitipan', $kode_penitipan);
    $data = $this->M_Transaksi->getAutocomplete($kode_penitipan);
    echo json_encode($data);
}

and this my model

public function getAutocomplete($kode_penitipan)
{
    $this->db->where('kode_penitipan', $kode_penitipan);
    $this->db->where('status', '1');
    $query = $this->db->get('penitipan');
    if ($query->num_rows()>0) {
        foreach ($query as $key) {
            $data = array(
                'kode_deskripsi' => $key->kode_deskripsi,
                'time_in' => $key->time_in,
            );
        }
        return $data;
    }
}

My problem is that the field I want to display doesn't appear, I try to use console.log (data) and it turns out to be null. Is there something wrong with my code? Help me ..

Sorry if my English is not perfect, hopefully the points I convey can be understood