int qcom_icc_bcm_init()

in qcom/icc-rpmh.c [135:183]

• 40 lines of code
• 7 McCabe index (conditional complexity)

int qcom_icc_bcm_init(struct qcom_icc_bcm *bcm, struct device *dev)
{
	struct qcom_icc_node *qn;
	const struct bcm_db *data;
	size_t data_count;
	int i;

	/* BCM is already initialised*/
	if (bcm->addr)
		return 0;

	bcm->addr = cmd_db_read_addr(bcm->name);
	if (!bcm->addr) {
		dev_err(dev, "%s could not find RPMh address\n",
			bcm->name);
		return -EINVAL;
	}

	data = cmd_db_read_aux_data(bcm->name, &data_count);
	if (IS_ERR(data)) {
		dev_err(dev, "%s command db read error (%ld)\n",
			bcm->name, PTR_ERR(data));
		return PTR_ERR(data);
	}
	if (!data_count) {
		dev_err(dev, "%s command db missing or partial aux data\n",
			bcm->name);
		return -EINVAL;
	}

	bcm->aux_data.unit = le32_to_cpu(data->unit);
	bcm->aux_data.width = le16_to_cpu(data->width);
	bcm->aux_data.vcd = data->vcd;
	bcm->aux_data.reserved = data->reserved;
	INIT_LIST_HEAD(&bcm->list);
	INIT_LIST_HEAD(&bcm->ws_list);

	if (!bcm->vote_scale)
		bcm->vote_scale = 1000;

	/* Link Qnodes to their respective BCMs */
	for (i = 0; i < bcm->num_nodes; i++) {
		qn = bcm->nodes[i];
		qn->bcms[qn->num_bcms] = bcm;
		qn->num_bcms++;
	}

	return 0;
}