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spmi: pmic-arb: Move the ownership check to irq_chip callback 

Check the irq ownership in the irq_request_resources callback
instead of checking it during the irq mapping. This can prevent
installing the flow handler for the interrupt that is not owned by the EE
and allow the irq translation during the gpio driver probe.

Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>
Tested-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Kiran Gunda 2017-08-23 18:16:26 +05:30 committed by Greg Kroah-Hartman
parent e55fe64a19
commit 2fb4f2581d
1 changed files with 19 additions and 7 deletions
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26
drivers/spmi/spmi-pmic-arb.c
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@ -666,6 +666,24 @@ static int qpnpint_get_irqchip_state(struct irq_data *d,
return 0;
}
static int qpnpint_irq_request_resources(struct irq_data *d)
{
struct spmi_pmic_arb *pmic_arb = irq_data_get_irq_chip_data(d);
u16 periph = hwirq_to_per(d->hwirq);
u16 apid = hwirq_to_apid(d->hwirq);
u16 sid = hwirq_to_sid(d->hwirq);
u16 irq = hwirq_to_irq(d->hwirq);
if (pmic_arb->apid_data[apid].irq_ee != pmic_arb->ee) {
dev_err(&pmic_arb->spmic->dev, "failed to xlate sid = %#x, periph = %#x, irq = %u: ee=%u but owner=%u\n",
sid, periph, irq, pmic_arb->ee,
pmic_arb->apid_data[apid].irq_ee);
return -ENODEV;
}
return 0;
}
static struct irq_chip pmic_arb_irqchip = {
.name = "pmic_arb",
.irq_ack = qpnpint_irq_ack,
@ -674,6 +692,7 @@ static struct irq_chip pmic_arb_irqchip = {
.irq_set_type = qpnpint_irq_set_type,
.irq_set_wake = qpnpint_irq_set_wake,
.irq_get_irqchip_state = qpnpint_get_irqchip_state,
.irq_request_resources = qpnpint_irq_request_resources,
.flags = IRQCHIP_MASK_ON_SUSPEND,
};
@ -707,13 +726,6 @@ static int qpnpint_irq_domain_dt_translate(struct irq_domain *d,
}
apid = rc;
if (pmic_arb->apid_data[apid].irq_ee != pmic_arb->ee) {
dev_err(&pmic_arb->spmic->dev, "failed to xlate sid = %#x, periph = %#x, irq = %u: ee=%u but owner=%u\n",
intspec[0], intspec[1], intspec[2], pmic_arb->ee,
pmic_arb->apid_data[apid].irq_ee);
return -ENODEV;
}
/* Keep track of {max,min}_apid for bounding search during interrupt */
if (apid > pmic_arb->max_apid)
pmic_arb->max_apid = apid;