diff options
| -rw-r--r-- | drivers/net/ipa/ipa_smp2p.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/drivers/net/ipa/ipa_smp2p.c b/drivers/net/ipa/ipa_smp2p.c index df7639c39d71..24bc112a072c 100644 --- a/drivers/net/ipa/ipa_smp2p.c +++ b/drivers/net/ipa/ipa_smp2p.c @@ -53,7 +53,7 @@ * @setup_ready_irq: IPA interrupt triggered by modem to signal GSI ready * @power_on: Whether IPA power is on * @notified: Whether modem has been notified of power state - * @disabled: Whether setup ready interrupt handling is disabled + * @setup_disabled: Whether setup ready interrupt handler is disabled * @mutex: Mutex protecting ready-interrupt/shutdown interlock * @panic_notifier: Panic notifier structure */ @@ -67,7 +67,7 @@ struct ipa_smp2p { u32 setup_ready_irq; bool power_on; bool notified; - bool disabled; + bool setup_disabled; struct mutex mutex; struct notifier_block panic_notifier; }; @@ -155,11 +155,9 @@ static irqreturn_t ipa_smp2p_modem_setup_ready_isr(int irq, void *dev_id) struct device *dev; int ret; - mutex_lock(&smp2p->mutex); - - if (smp2p->disabled) - goto out_mutex_unlock; - smp2p->disabled = true; /* If any others arrive, ignore them */ + /* Ignore any (spurious) interrupts received after the first */ + if (smp2p->ipa->setup_complete) + return IRQ_HANDLED; /* Power needs to be active for setup */ dev = &smp2p->ipa->pdev->dev; @@ -176,8 +174,6 @@ static irqreturn_t ipa_smp2p_modem_setup_ready_isr(int irq, void *dev_id) out_power_put: pm_runtime_mark_last_busy(dev); (void)pm_runtime_put_autosuspend(dev); -out_mutex_unlock: - mutex_unlock(&smp2p->mutex); return IRQ_HANDLED; } @@ -322,7 +318,10 @@ void ipa_smp2p_disable(struct ipa *ipa) mutex_lock(&smp2p->mutex); - smp2p->disabled = true; + if (!smp2p->setup_disabled) { + disable_irq(smp2p->setup_ready_irq); + smp2p->setup_disabled = true; + } mutex_unlock(&smp2p->mutex); } |