static void qpnpint_irq_unmask()

in spmi-pmic-arb.c [678:700]

• 16 lines of code
• 2 McCabe index (conditional complexity)

static void qpnpint_irq_unmask(struct irq_data *d)
{
	struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
	const struct pmic_arb_ver_ops *ver_ops = pmic_arb->ver_ops;
	u8 irq = hwirq_to_irq(d->hwirq);
	u16 apid = hwirq_to_apid(d->hwirq);
	u8 buf[2];

	writel_relaxed(SPMI_PIC_ACC_ENABLE_BIT,
			ver_ops->acc_enable(pmic_arb, apid));

	qpnpint_spmi_read(d, QPNPINT_REG_EN_SET, &buf[0], 1);
	if (!(buf[0] & BIT(irq))) {
		/*
		 * Since the interrupt is currently disabled, write to both the
		 * LATCHED_CLR and EN_SET registers so that a spurious interrupt
		 * cannot be triggered when the interrupt is enabled
		 */
		buf[0] = BIT(irq);
		buf[1] = BIT(irq);
		qpnpint_spmi_write(d, QPNPINT_REG_LATCHED_CLR, &buf, 2);
	}
}