From: Franky Lin <frankyl@xxxxxxxxxxxx>
Use single message MSI to replace legacy interrupt.
Reviewed-by: Arend Van Spriel <arend@xxxxxxxxxxxx>
Reviewed-by: Hante Meuleman <meuleman@xxxxxxxxxxxx>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@xxxxxxxxxxxx>
Signed-off-by: Franky Lin <frankyl@xxxxxxxxxxxx>
Signed-off-by: Arend van Spriel <arend@xxxxxxxxxxxx>
---
drivers/net/wireless/brcm80211/brcmfmac/pcie.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/pcie.c b/drivers/net/wireless/brcm80211/brcmfmac/pcie.c
index b87b727..a664819 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/pcie.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/pcie.c
@@ -798,12 +798,14 @@ static int brcmf_pcie_request_irq(struct brcmf_pciedev_info *devinfo)
brcmf_dbg(PCIE, "Enter\n");
/* is it a v1 or v2 implementation */
devinfo->irq_requested = false;
+ pci_enable_msi(pdev);
if (devinfo->generic_corerev == BRCMF_PCIE_GENREV1) {
if (request_threaded_irq(pdev->irq,
brcmf_pcie_quick_check_isr_v1,
brcmf_pcie_isr_thread_v1,
IRQF_SHARED, "brcmf_pcie_intr",
devinfo)) {
+ pci_disable_msi(pdev);
brcmf_err("Failed to request IRQ %d\n", pdev->irq);
return -EIO;
}
@@ -813,6 +815,7 @@ static int brcmf_pcie_request_irq(struct brcmf_pciedev_info *devinfo)
brcmf_pcie_isr_thread_v2,
IRQF_SHARED, "brcmf_pcie_intr",
devinfo)) {
+ pci_disable_msi(pdev);
brcmf_err("Failed to request IRQ %d\n", pdev->irq);
return -EIO;
}
@@ -839,6 +842,7 @@ static void brcmf_pcie_release_irq(struct brcmf_pciedev_info *devinfo)
return;
devinfo->irq_requested = false;
free_irq(pdev->irq, devinfo);
+ pci_disable_msi(pdev);
msleep(50);
count = 0;
--
1.9.1
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