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Merge "spmi-pmic-arb: add support to dispatch interrupt based on IRQ status"

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Linux Build Service Account 2017-05-25 15:52:01 -07:00 • committed by Gerrit - the friendly Code Review server
commit 73f6909d54
1 changed files with 28 additions and 0 deletions
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28
drivers/spmi/spmi-pmic-arb.c
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@ -577,10 +577,16 @@ static void __pmic_arb_chained_irq(struct spmi_pmic_arb *pa, bool show)
int last = pa->max_apid >> 5; int last = pa->max_apid >> 5;
u32 status, enable; u32 status, enable;
int i, id, apid; int i, id, apid;
/* status based dispatch */
bool acc_valid = false;
u32 irq_status = 0;
for (i = first; i <= last; ++i) { for (i = first; i <= last; ++i) {
status = readl_relaxed(pa->acc_status + status = readl_relaxed(pa->acc_status +
pa->ver_ops->owner_acc_status(pa->ee, i)); pa->ver_ops->owner_acc_status(pa->ee, i));
if (status)
acc_valid = true;
while (status) { while (status) {
id = ffs(status) - 1; id = ffs(status) - 1;
status &= ~BIT(id); status &= ~BIT(id);
@ -591,6 +597,28 @@ static void __pmic_arb_chained_irq(struct spmi_pmic_arb *pa, bool show)
periph_interrupt(pa, apid, show); periph_interrupt(pa, apid, show);
} }
} }
/* ACC_STATUS is empty but IRQ fired check IRQ_STATUS */
if (!acc_valid) {
for (i = pa->min_apid; i <= pa->max_apid; i++) {
/* skip if APPS is not irq owner */
if (pa->apid_data[i].irq_owner != pa->ee)
continue;
irq_status = readl_relaxed(pa->intr +
pa->ver_ops->irq_status(i));
if (irq_status) {
enable = readl_relaxed(pa->intr +
pa->ver_ops->acc_enable(i));
if (enable & SPMI_PIC_ACC_ENABLE_BIT) {
dev_dbg(&pa->spmic->dev,
"Dispatching IRQ for apid=%d status=%x\n",
i, irq_status);
periph_interrupt(pa, i, show);
}
}
}
}
} }
static void pmic_arb_chained_irq(struct irq_desc *desc) static void pmic_arb_chained_irq(struct irq_desc *desc)