[v11,1/3] PCI: portdrv: Add pcie_port_service_get_irq() function
diff mbox series

Message ID 1619111097-10232-2-git-send-email-hayashi.kunihiko@socionext.com
State New, archived
Headers show
Series
  • PCI: uniphier: Add PME/AER support for UniPhier PCIe host controller
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Commit Message

Kunihiko Hayashi April 22, 2021, 5:04 p.m. UTC
Add pcie_port_service_get_irq() that returns the virtual IRQ number
for specified portdrv service.

Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/pci/pcie/portdrv.h      |  1 +
 drivers/pci/pcie/portdrv_core.c | 16 ++++++++++++++++
 2 files changed, 17 insertions(+)

Patch
diff mbox series

diff --git a/drivers/pci/pcie/portdrv.h b/drivers/pci/pcie/portdrv.h
index 2ff5724..628a3de 100644
--- a/drivers/pci/pcie/portdrv.h
+++ b/drivers/pci/pcie/portdrv.h
@@ -144,4 +144,5 @@  static inline void pcie_pme_interrupt_enable(struct pci_dev *dev, bool en) {}
 #endif /* !CONFIG_PCIE_PME */
 
 struct device *pcie_port_find_device(struct pci_dev *dev, u32 service);
+int pcie_port_service_get_irq(struct pci_dev *dev, u32 service);
 #endif /* _PORTDRV_H_ */
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index e1fed664..93027d3 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -478,6 +478,22 @@  struct device *pcie_port_find_device(struct pci_dev *dev,
 EXPORT_SYMBOL_GPL(pcie_port_find_device);
 
 /**
+ * pcie_port_service_get_irq - get irq of the service
+ * @dev: PCI Express port the service is associated with
+ * @service: For the service to find
+ *
+ * Get irq number associated with given service on a pci_dev
+ */
+int pcie_port_service_get_irq(struct pci_dev *dev, u32 service)
+{
+	struct pcie_device *pciedev;
+
+	pciedev = to_pcie_device(pcie_port_find_device(dev, service));
+
+	return pciedev->irq;
+}
+
+/**
  * pcie_port_device_remove - unregister PCI Express port service devices
  * @dev: PCI Express port the service devices to unregister are associated with
  *