spmi: pmic-arb: Move the ownership check to irq_chip callback
authorKiran Gunda <kgunda@codeaurora.org>
Wed, 23 Aug 2017 12:46:26 +0000 (18:16 +0530)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 28 Aug 2017 11:52:22 +0000 (13:52 +0200)
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>
drivers/spmi/spmi-pmic-arb.c

index ca9bdd3011951e857be948710d376298f8b1a1d4..360b8218f322cabbe1f363c9fc13c21476d431ff 100644 (file)
@@ -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;