[PATCH 1/2] bindings: ipmi: Add alert GPIO enhancement for SSIF BMC driver

[Potin Lai]

Introduce the `alert-gpios` property to define an alert pin, enabling
the BMC to notify the host when a response is available.

Signed-off-by: Potin Lai <potin.lai.pt@xxxxxxxxx>
---
 Documentation/devicetree/bindings/ipmi/ssif-bmc.yaml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/ipmi/ssif-bmc.yaml b/Documentation/devicetree/bindings/ipmi/ssif-bmc.yaml
index 02b662d780bb..104283fa851a 100644
--- a/Documentation/devicetree/bindings/ipmi/ssif-bmc.yaml
+++ b/Documentation/devicetree/bindings/ipmi/ssif-bmc.yaml
@@ -19,6 +19,12 @@ properties:
   reg:
     maxItems: 1
 
+  alert-gpios:
+    description:
+      GPIO pin designated for SSIF alert, used by the BMC to notify the
+      host when a response is available.
+    maxItems: 1
+
 required:
   - compatible
   - reg
@@ -34,5 +40,6 @@ examples:
         ssif-bmc@10 {
             compatible = "ssif-bmc";
             reg = <0x10>;
+            alert-gpios = <&gpio 0 GPIO_ACTIVE_LOW>;
         };
     };

-- 
2.31.1