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| author |   Fenglin Wu <quic_fenglinw@quicinc.com> | 2022-09-29 17:50:12 -0700 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-09-30 14:33:23 +0200 |
| commit | abb9088b3a39cfec1321e93170ee3c0c1255fd9d (patch) | |
| tree | 7eb8c1059098a4bb6ccfc909659af64bd0ca592c /drivers/spmi | |
| parent | spmi: pmic-arb: add a print in cleanup_irq (diff) | |
| download | wireguard-linux-abb9088b3a39cfec1321e93170ee3c0c1255fd9d.tar.xz wireguard-linux-abb9088b3a39cfec1321e93170ee3c0c1255fd9d.zip | |
spmi: pmic-arb: handle spurious interrupt
Call handle_bad_irq() when the summary interrupt is fired spuriously.
Signed-off-by: Fenglin Wu <quic_fenglinw@quicinc.com>
Link: https://lore.kernel.org/r/1655004286-11493-3-git-send-email-quic_fenglinw@quicinc.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20220930005019.2663064-4-sboyd@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/spmi')
| -rw-r--r-- | drivers/spmi/spmi-pmic-arb.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/spmi/spmi-pmic-arb.c b/drivers/spmi/spmi-pmic-arb.c index 5a99723b3f32..719bd73e5153 100644 --- a/drivers/spmi/spmi-pmic-arb.c +++ b/drivers/spmi/spmi-pmic-arb.c @@ -605,10 +605,11 @@ static void cleanup_irq(struct spmi_pmic_arb *pmic_arb, u16 apid, int id) irq_mask, ppid); } -static void periph_interrupt(struct spmi_pmic_arb *pmic_arb, u16 apid) +static int periph_interrupt(struct spmi_pmic_arb *pmic_arb, u16 apid) { unsigned int irq; u32 status, id; + int handled = 0; u8 sid = (pmic_arb->apid_data[apid].ppid >> 8) & 0xF; u8 per = pmic_arb->apid_data[apid].ppid & 0xFF; @@ -623,7 +624,10 @@ static void periph_interrupt(struct spmi_pmic_arb *pmic_arb, u16 apid) continue; } generic_handle_irq(irq); + handled++; } + + return handled; } static void pmic_arb_chained_irq(struct irq_desc *desc) @@ -634,7 +638,7 @@ static void pmic_arb_chained_irq(struct irq_desc *desc) int first = pmic_arb->min_apid >> 5; int last = pmic_arb->max_apid >> 5; u8 ee = pmic_arb->ee; - u32 status, enable; + u32 status, enable, handled = 0; int i, id, apid; chained_irq_enter(chip, desc); @@ -649,10 +653,14 @@ static void pmic_arb_chained_irq(struct irq_desc *desc) enable = readl_relaxed( ver_ops->acc_enable(pmic_arb, apid)); if (enable & SPMI_PIC_ACC_ENABLE_BIT) - periph_interrupt(pmic_arb, apid); + if (periph_interrupt(pmic_arb, apid) != 0) + handled++; } } + if (handled == 0) + handle_bad_irq(desc); + chained_irq_exit(chip, desc); } |