Commit 6db0cd55 authored by Neeraj Sanjay Kale's avatar Neeraj Sanjay Kale Committed by Luiz Augusto von Dentz
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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: default avatarNeeraj Sanjay Kale <neeraj.sanjaykale@nxp.com>
Reviewed-by: default avatarRob Herring (Arm) <robh@kernel.org>
Signed-off-by: default avatarLuiz Augusto von Dentz <luiz.von.dentz@intel.com>
parent 2b0f2fc9

Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml

+8 −0
Original line number Diff line number Diff line
@@ -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 <dt-bindings/gpio/gpio.h>

    serial {

        bluetooth {

            compatible = "nxp,88w8987-bt";

            fw-init-baudrate = <3000000>;

            firmware-name = "uartuart8987_bt_v0.bin";

            device-wakeup-gpios = <&gpio 11 GPIO_ACTIVE_HIGH>;

        };

    };