From 6db0cd55432e157949a179e9d569b4515fc6e42f Mon Sep 17 00:00:00 2001 From: Neeraj Sanjay Kale Date: Tue, 8 Oct 2024 14:41:58 +0530 Subject: [PATCH] dt-bindings: net: bluetooth: nxp: Add support for power save feature using GPIO This adds a new optional device tree property device-wakeup-gpios, which specifies the GPIO connected to BT_WAKE_IN pin of the NXP chipset. If this property is defined, the driver will use this GPIO for driving chip into sleep/wakeup state, else use the UART break signal by default. Signed-off-by: Neeraj Sanjay Kale Reviewed-by: Rob Herring (Arm) Signed-off-by: Luiz Augusto von Dentz --- .../devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml b/Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml index 37a65badb448..0a2d7baf5db3 100644 --- a/Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml +++ b/Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml @@ -34,6 +34,12 @@ properties: firmware-name: maxItems: 1 + device-wakeup-gpios: + maxItems: 1 + description: + Host-To-Chip power save mechanism is driven by this GPIO + connected to BT_WAKE_IN pin of the NXP chipset. + required: - compatible @@ -41,10 +47,12 @@ additionalProperties: false examples: - | + #include serial { bluetooth { compatible = "nxp,88w8987-bt"; fw-init-baudrate = <3000000>; firmware-name = "uartuart8987_bt_v0.bin"; + device-wakeup-gpios = <&gpio 11 GPIO_ACTIVE_HIGH>; }; }; -- 2.50.1