static int bcm_otpc_read()

in bcm-ocotp.c [162:191]

• 26 lines of code
• 4 McCabe index (conditional complexity)

static int bcm_otpc_read(void *context, unsigned int offset, void *val,
	size_t bytes)
{
	struct otpc_priv *priv = context;
	u32 *buf = val;
	u32 bytes_read;
	u32 address = offset / priv->config->word_size;
	int i, ret;

	for (bytes_read = 0; bytes_read < bytes;) {
		set_command(priv->base, OTPC_CMD_READ);
		set_cpu_address(priv->base, address++);
		set_start_bit(priv->base);
		ret = poll_cpu_status(priv->base, OTPC_STAT_CMD_DONE);
		if (ret) {
			dev_err(priv->dev, "otp read error: 0x%x", ret);
			return -EIO;
		}

		for (i = 0; i < priv->map->otpc_row_size; i++) {
			*buf++ = readl(priv->base +
					priv->map->data_r_offset[i]);
			bytes_read += sizeof(*buf);
		}

		reset_start_bit(priv->base);
	}

	return 0;
}