From: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
Update bindings to reflect the fact that a SATA IP can either have:
- only one interrupt: in this case an 'interrupts' property is
declared at the root of the node;
or
- each SATA port can have their own interrupt: in this case there is
one 'interrupts' property per port/sub-node and none at the root.
Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
---
Documentation/devicetree/bindings/ata/ahci-platform.txt | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/ata/ahci-platform.txt b/Documentation/devicetree/bindings/ata/ahci-platform.txt
index 77091a277642..83d715cbcecd 100644
--- a/Documentation/devicetree/bindings/ata/ahci-platform.txt
+++ b/Documentation/devicetree/bindings/ata/ahci-platform.txt
@@ -49,6 +49,12 @@ And at least one of the following properties:
- phys : reference to the SATA PHY node
- target-supply : regulator for SATA target power
+Sub-nodes optional properties:
+- interrupts : <interrupt mapping for SATA ports IRQ>, please
+ note that either the root SATA node has the
+ interrupts property, or there is one per SATA
+ port, but not both at the same time.
+
Examples:
sata@ffe08000 {
compatible = "snps,spear-ahci";
--
2.20.1
