static int pmic_arb_read_cmd_unlocked()

in spmi-pmic-arb.c [370:391]

• 19 lines of code
• 3 McCabe index (conditional complexity)

static int pmic_arb_read_cmd_unlocked(struct spmi_controller *ctrl, u32 cmd,
				      u32 offset, u8 sid, u16 addr, u8 *buf,
				      size_t len)
{
	struct spmi_pmic_arb *pmic_arb = spmi_controller_get_drvdata(ctrl);
	u8 bc = len - 1;
	int rc;

	pmic_arb_set_rd_cmd(pmic_arb, offset + PMIC_ARB_CMD, cmd);
	rc = pmic_arb_wait_for_done(ctrl, pmic_arb->rd_base, sid, addr,
				    PMIC_ARB_CHANNEL_OBS);
	if (rc)
		return rc;

	pmic_arb_read_data(pmic_arb, buf, offset + PMIC_ARB_RDATA0,
		     min_t(u8, bc, 3));

	if (bc > 3)
		pmic_arb_read_data(pmic_arb, buf + 4, offset + PMIC_ARB_RDATA1,
					bc - 4);
	return 0;
}