From: Jeffy Chen <jeffy.chen@xxxxxxxxxxxxxx>
Add device tree support to pass PCIe WAKE# pin information to PCI core
driver. To support PCIe WAKE# and PCI irqs, add definition of the optional
properties "interrupts" and "interrupt-names". These properties should be
defined by the PCIe port to which wake capable Endpoint is connected,
so the definition is added under "PCI-PCI Bridge properties" section.
Signed-off-by: Jeffy Chen <jeffy.chen@xxxxxxxxxxxxxx>
Signed-off-by: Manikanta Maddireddy <mmaddireddy@xxxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
---
Changes in v14:
Move the device tree properties definition to "PCI-PCI Bridge properties"
section and also update commit message.
Changes in v13: None
Changes in v12:
Only add irq definitions for PCI devices and rewrite the commit message.
Changes in v11: None
Changes in v10: None
Changes in v9:
Add section for PCI devices and rewrite the commit message.
Changes in v8:
Add optional "pci", and rewrite commit message.
Changes in v7: None
Changes in v6: None
Changes in v5:
Move to pci.txt
Changes in v3: None
Changes in v2: None
Documentation/devicetree/bindings/pci/pci.txt | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/Documentation/devicetree/bindings/pci/pci.txt b/Documentation/devicetree/bindings/pci/pci.txt
index 6a8f2874a24d..53bd559a7305 100644
--- a/Documentation/devicetree/bindings/pci/pci.txt
+++ b/Documentation/devicetree/bindings/pci/pci.txt
@@ -71,6 +71,14 @@ Optional properties:
trusted with relaxed DMA protection, as users could easily attach
malicious devices to this port.
+- interrupts: Interrupt specifier for each name in interrupt-names.
+- interrupt-names:
+ May contain "wakeup" for PCIe WAKE# interrupt and "pci" for PCI interrupt.
+ The PCI devices may optionally include an 'interrupts' property that
+ represents the legacy PCI interrupt. And when we try to specify the PCIe
+ WAKE# pin, a corresponding 'interrupt-names' property is required to
+ distinguish them.
+
Example:
pcie@10000000 {
--
2.25.1
