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Message-Id: <20251029-dt-bindings-qcom-bluetooth-v2-1-dd8709501ea1@linaro.org>
Date: Wed, 29 Oct 2025 08:43:51 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Marcel Holtmann <marcel@...tmann.org>,
Luiz Augusto von Dentz <luiz.dentz@...il.com>,
Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Balakrishna Godavarthi <quic_bgodavar@...cinc.com>,
Rocky Liao <quic_rjliao@...cinc.com>, Bartosz Golaszewski <brgl@...ev.pl>
Cc: linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
linux-bluetooth@...r.kernel.org, devicetree@...r.kernel.org,
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v2 01/11] dt-bindings: bluetooth: qcom,qca2066-bt: Split to
separate schema
One big Qualcomm Bluetooth schema is hardly manageable: it lists all
possible properties (19 supplies). Split common part and
qcom,qca2066-bt to separate bindings, so each schema will be easier to
read/maintain and list only relevant properties.
The existing bindings do not mention interrupts, but
am335x-sancloud-bbe-extended-wifi.dts already defines such. This issue
is not being fixed here.
Existing binding also did not mention any supplies (which do exist as
confirmed in datasheet) and Linux driver does not ask for any, thus keep
this state unchanged.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
Expected warnings:
arch/arm/boot/dts/ti/omap/am335x-sancloud-bbe-extended-wifi.dts
Changes in v2:
1. Keep gpio.h header include for rest of the examples (fix build
failure)
---
.../net/bluetooth/qcom,bluetooth-common.yaml | 25 +++++++++++
.../bindings/net/bluetooth/qcom,qca2066-bt.yaml | 49 ++++++++++++++++++++++
.../bindings/net/bluetooth/qualcomm-bluetooth.yaml | 25 +----------
MAINTAINERS | 1 +
4 files changed, 76 insertions(+), 24 deletions(-)
diff --git a/Documentation/devicetree/bindings/net/bluetooth/qcom,bluetooth-common.yaml b/Documentation/devicetree/bindings/net/bluetooth/qcom,bluetooth-common.yaml
new file mode 100644
index 000000000000..c8e9c55c1afb
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/bluetooth/qcom,bluetooth-common.yaml
@@ -0,0 +1,25 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/bluetooth/qcom,bluetooth-common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Bluetooth Common Properties
+
+maintainers:
+ - Balakrishna Godavarthi <quic_bgodavar@...cinc.com>
+ - Rocky Liao <quic_rjliao@...cinc.com>
+
+properties:
+ firmware-name:
+ minItems: 1
+ items:
+ - description: specify the name of nvm firmware to load
+ - description: specify the name of rampatch firmware to load
+
+ qcom,local-bd-address-broken:
+ type: boolean
+ description:
+ boot firmware is incorrectly passing the address in big-endian order
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/net/bluetooth/qcom,qca2066-bt.yaml b/Documentation/devicetree/bindings/net/bluetooth/qcom,qca2066-bt.yaml
new file mode 100644
index 000000000000..d4f167c9b7e1
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/bluetooth/qcom,qca2066-bt.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/bluetooth/qcom,qca2066-bt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm QCA2006 Bluetooth
+
+maintainers:
+ - Balakrishna Godavarthi <quic_bgodavar@...cinc.com>
+ - Rocky Liao <quic_rjliao@...cinc.com>
+
+properties:
+ compatible:
+ enum:
+ - qcom,qca2066-bt
+ - qcom,qca6174-bt
+
+ clocks:
+ items:
+ - description: External low-power 32.768 kHz clock input
+
+ enable-gpios:
+ maxItems: 1
+
+required:
+ - compatible
+ - clocks
+ - enable-gpios
+
+allOf:
+ - $ref: bluetooth-controller.yaml#
+ - $ref: qcom,bluetooth-common.yaml
+ - $ref: /schemas/serial/serial-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ serial {
+ bluetooth {
+ compatible = "qcom,qca6174-bt";
+ clocks = <&divclk4>;
+ enable-gpios = <&pm8994_gpios 19 GPIO_ACTIVE_HIGH>;
+ firmware-name = "nvm_00440302.bin";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/net/bluetooth/qualcomm-bluetooth.yaml b/Documentation/devicetree/bindings/net/bluetooth/qualcomm-bluetooth.yaml
index 6353a336f382..85d10d94700f 100644
--- a/Documentation/devicetree/bindings/net/bluetooth/qualcomm-bluetooth.yaml
+++ b/Documentation/devicetree/bindings/net/bluetooth/qualcomm-bluetooth.yaml
@@ -16,8 +16,6 @@ description:
properties:
compatible:
enum:
- - qcom,qca2066-bt
- - qcom,qca6174-bt
- qcom,qca9377-bt
- qcom,wcn3950-bt
- qcom,wcn3988-bt
@@ -122,17 +120,6 @@ additionalProperties: false
allOf:
- $ref: bluetooth-controller.yaml#
- $ref: /schemas/serial/serial-peripheral-props.yaml#
- - if:
- properties:
- compatible:
- contains:
- enum:
- - qcom,qca2066-bt
- - qcom,qca6174-bt
- then:
- required:
- - enable-gpios
- - clocks
- if:
properties:
@@ -211,17 +198,6 @@ allOf:
- vddrfa1p7-supply
examples:
- - |
- #include <dt-bindings/gpio/gpio.h>
- serial {
-
- bluetooth {
- compatible = "qcom,qca6174-bt";
- enable-gpios = <&pm8994_gpios 19 GPIO_ACTIVE_HIGH>;
- clocks = <&divclk4>;
- firmware-name = "nvm_00440302.bin";
- };
- };
- |
serial {
@@ -236,6 +212,7 @@ examples:
};
};
- |
+ #include <dt-bindings/gpio/gpio.h>
serial {
bluetooth {
diff --git a/MAINTAINERS b/MAINTAINERS
index 8a2c5fb0ba55..c1889de94ad9 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -21148,6 +21148,7 @@ QUALCOMM BLUETOOTH DRIVER
M: Bartosz Golaszewski <brgl@...ev.pl>
L: linux-arm-msm@...r.kernel.org
S: Maintained
+F: Documentation/devicetree/bindings/net/bluetooth/qcom,*
F: drivers/bluetooth/btqca.[ch]
F: drivers/bluetooth/btqcomsmd.c
F: drivers/bluetooth/hci_qca.c
--
2.48.1
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