Messages in this thread Patch in this message | | | From | Kiran Gunda <> | Subject | [PATCH 09/11] spmi: pmic-arb: check apid enabled before calling the handler | Date | Wed, 10 May 2017 19:55:39 +0530 |
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From: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
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> --- drivers/spmi/spmi-pmic-arb.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c index ad34491..f8638fa 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); } } -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project
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