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dt-bindings: net: bluetooth: nxp: Add support for power save feature using GPIO

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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 <neeraj.sanjaykale@nxp.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This commit is contained in:
Neeraj Sanjay Kale 2024-10-08 14:41:58 +05:30 committed by Luiz Augusto von Dentz
parent 2b0f2fc9ed
commit 6db0cd5543
1 changed files with 8 additions and 0 deletions
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8
Documentation/devicetree/bindings/net/bluetooth/nxp,88w8987-bt.yaml
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@ -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>;
};
};