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authorAbhijeet Dharmapurikar <adharmap@codeaurora.org>2017-05-10 19:55:39 +0530
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-06-03 19:05:47 +0900
commit472eaf8bedbbedc4df5f7007d1eceb4624a78afa (patch)
treef95a6ee70f7247c75a4dac216159f22366c1eb69 /drivers/spmi
parent5f9b2ea3da8cf079e22cbb0fc2ed1b9034f7dd42 (diff)
spmi: pmic-arb: check apid enabled before calling the handler
The driver currently invokes the apid handler (periph_handler()) once it sees that the summary status bit for that apid is set. However the hardware is designed to set that bit even if the apid interrupts are disabled. The driver should check whether the apid is indeed enabled before calling the apid handler. Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org> Signed-off-by: Kiran Gunda <kgunda@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/spmi')
-rw-r--r--drivers/spmi/spmi-pmic-arb.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c
index ad344916493c..f8638faaac9d 100644
--- a/drivers/spmi/spmi-pmic-arb.c
+++ b/drivers/spmi/spmi-pmic-arb.c
@@ -536,8 +536,8 @@ static void pmic_arb_chained_irq(struct irq_desc *desc)
void __iomem *intr = pa->intr;
int first = pa->min_apid >> 5;
int last = pa->max_apid >> 5;
- u32 status;
- int i, id;
+ u32 status, enable;
+ int i, id, apid;
chained_irq_enter(chip, desc);
@@ -547,7 +547,11 @@ static void pmic_arb_chained_irq(struct irq_desc *desc)
while (status) {
id = ffs(status) - 1;
status &= ~BIT(id);
- periph_interrupt(pa, id + i * 32);
+ apid = id + i * 32;
+ enable = readl_relaxed(intr +
+ pa->ver_ops->acc_enable(apid));
+ if (enable & SPMI_PIC_ACC_ENABLE_BIT)
+ periph_interrupt(pa, apid);
}
}

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