diff options
| author | Alexey Kardashevskiy <aik@ozlabs.ru> | 2018-02-09 09:23:58 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2018-02-10 20:49:56 +0300 |
| commit | c591c2e36ccc9a08f265841d2fd68e35327ab3c4 (patch) | |
| tree | 9e08bfbbbd4c88bdb011602607a5ae6275299616 | |
| parent | ab8c609356fbe8dbcd44df11e884ce8cddf3739e (diff) | |
| download | linux-c591c2e36ccc9a08f265841d2fd68e35327ab3c4.tar.xz | |
powerpc/pci: Fix broken INTx configuration via OF
59f47eff03a0 ("powerpc/pci: Use of_irq_parse_and_map_pci() helper")
replaced of_irq_parse_pci() + irq_create_of_mapping() with
of_irq_parse_and_map_pci(), but neglected to capture the virq
returned by irq_create_of_mapping(), so virq remained zero, which
caused INTx configuration to fail.
Save the virq value returned by of_irq_parse_and_map_pci() and correct
the virq declaration to match the of_irq_parse_and_map_pci() signature.
Fixes: 59f47eff03a0 "powerpc/pci: Use of_irq_parse_and_map_pci() helper"
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
[bhelgaas: changelog]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
| -rw-r--r-- | arch/powerpc/kernel/pci-common.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 344af823c3c4..4e884db7b213 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -339,7 +339,7 @@ struct pci_controller* pci_find_hose_for_OF_device(struct device_node* node) */ static int pci_read_irq_line(struct pci_dev *pci_dev) { - unsigned int virq = 0; + int virq; pr_debug("PCI: Try to map irq for %s...\n", pci_name(pci_dev)); @@ -347,7 +347,8 @@ static int pci_read_irq_line(struct pci_dev *pci_dev) memset(&oirq, 0xff, sizeof(oirq)); #endif /* Try to get a mapping from the device-tree */ - if (!of_irq_parse_and_map_pci(pci_dev, 0, 0)) { + virq = of_irq_parse_and_map_pci(pci_dev, 0, 0); + if (virq <= 0) { u8 line, pin; /* If that fails, lets fallback to what is in the config |