[PATCH 1/5] ath10k: fix operating irq mode for ahb device

[Rajkumar Manoharan]

Earlier when operating irq mode is legacy, interrupts are disabled
and re-enabled based on num_msi_intrs. commit cfe9011a05a8 ("ath10k:
remove MSI range support") replaced num_msi_intrs by oper_irq_mode.
Since oper_irq_mode is not initialized for ahb devices (i.e qca4019),
device boot up is failed during probe.

Fixes: cfe9011a05a8 ("ath10k: remove MSI range support")
Signed-off-by: Rajkumar Manoharan <rmanohar at qti.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/ahb.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/wireless/ath/ath10k/ahb.c b/drivers/net/wireless/ath/ath10k/ahb.c
index bd62bc19e758..37ff36fca7bc 100644
--- a/drivers/net/wireless/ath/ath10k/ahb.c
+++ b/drivers/net/wireless/ath/ath10k/ahb.c
@@ -476,6 +476,7 @@ static irqreturn_t ath10k_ahb_interrupt_handler(int irq, void *arg)
 
 static int ath10k_ahb_request_irq_legacy(struct ath10k *ar)
 {
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
 	struct ath10k_ahb *ar_ahb = ath10k_ahb_priv(ar);
 	int ret;
 
@@ -487,6 +488,7 @@ static int ath10k_ahb_request_irq_legacy(struct ath10k *ar)
 			    ar_ahb->irq, ret);
 		return ret;
 	}
+	ar_pci->oper_irq_mode = ATH10K_PCI_IRQ_LEGACY;
 
 	return 0;
 }
-- 
2.8.3