linux-kernel - [PATCH v3 1/2] dt-bindings: net: bluetooth: nxp: Add support for host-wakeup

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Message-Id: <20250414175952.403002-1-neeraj.sanjaykale@nxp.com>
Date: Mon, 14 Apr 2025 23:29:51 +0530
From: Neeraj Sanjay Kale <neeraj.sanjaykale@....com>
To: marcel@...tmann.org,
	luiz.dentz@...il.com,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org
Cc: linux-bluetooth@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org,
	amitkumar.karwar@....com,
	neeraj.sanjaykale@....com,
	sherry.sun@....com,
	manjeet.gupta@....com
Subject: [PATCH v3 1/2] dt-bindings: net: bluetooth: nxp: Add support for host-wakeup

Add support for host wakeup on interrupt.

Signed-off-by: Neeraj Sanjay Kale <neeraj.sanjaykale@....com>
---
v2: Use interrupt instead of host-wakeup-gpios. (Rob Herring)
v3: Fix errors in dt_binding_check. (Neeraj Kale)
---
 .../bindings/net/bluetooth/nxp,88w8987-bt.yaml  | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml b/Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml
index d02e9dd847ef..3ab60c70286f 100644
--- a/Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml
+++ b/Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml
@@ -48,6 +48,18 @@ properties:
     description:
       The GPIO number of the NXP chipset used for BT_WAKE_IN.
 
+  interrupts:
+    maxItems: 1
+    description:
+      Host wakeup by falling edge interrupt on this pin which is
+      connected to BT_WAKE_OUT pin of the NXP chipset.
+
+  interrupt-names:
+    items:
+      - const: wakeup
+
+  wakeup-source: true
+
   nxp,wakeout-pin:
     $ref: /schemas/types.yaml#/definitions/uint8
     description:
@@ -61,6 +73,7 @@ unevaluatedProperties: false
 examples:
   - |
     #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
     serial {
         bluetooth {
             compatible = "nxp,88w8987-bt";
@@ -70,5 +83,9 @@ examples:
             nxp,wakein-pin = /bits/ 8 <18>;
             nxp,wakeout-pin = /bits/ 8 <19>;
             local-bd-address = [66 55 44 33 22 11];
+            interrupt-parent = <&gpio>;
+            interrupts = <8 IRQ_TYPE_EDGE_FALLING>;
+            interrupt-names = "wakeup";
+            wakeup-source;
         };
     };
-- 
2.25.1