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@xxxxxxx>
Reviewed-by: Rob Herring (Arm) <robh@xxxxxxxxxx>
---
v2: Rephrase description and use "-gpios". (Krzysztof, Rob)
v3: Use device-wakeup-gpios instead of h2c-ps-gpios. (Krzysztof)
v4: Add Reviewed-by (Rob)
---
.../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 <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>;
};
};
--
2.25.1
