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[v7,3/4] dt-bindings: net: bluetooth: Add qualcomm-bluetooth

Message ID 20180329191524.30225-4-thierry.escande@linaro.org (mailing list archive)
State Accepted, archived
Headers show

Commit Message

Thierry Escande March 29, 2018, 7:15 p.m. UTC 
Add binding document for serial bluetooth chips using Qualcomm protocol.

Signed-off-by: Thierry Escande <thierry.escande@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
---

v7: no change

v6:
- Remove chip specific pinctrl conf
- Move gpio and clocks into optional props section

v5:
- Rename 'bt-disable-n' gpio as 'enable'

v4:
- Move bt-disable-n-gpios to required properties section
- Add clocks and pinctrl-0 as required properties

v3: no change
v2: no change

 .../devicetree/bindings/net/qualcomm-bluetooth.txt | 30 ++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
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Patch

diff --git a/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt b/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
new file mode 100644
index 000000000000..0ea18a53cc29
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
@@ -0,0 +1,30 @@ 
+Qualcomm Bluetooth Chips
+---------------------
+
+This documents the binding structure and common properties for serial
+attached Qualcomm devices.
+
+Serial attached Qualcomm devices shall be a child node of the host UART
+device the slave device is attached to.
+
+Required properties:
+ - compatible: should contain one of the following:
+   * "qcom,qca6174-bt"
+
+Optional properties:
+ - enable-gpios: gpio specifier used to enable chip
+ - clocks: clock provided to the controller (SUSCLK_32KHZ)
+
+Example:
+
+serial@7570000 {
+	label = "BT-UART";
+	status = "okay";
+
+	bluetooth {
+		compatible = "qcom,qca6174-bt";
+
+		enable-gpios = <&pm8994_gpios 19 GPIO_ACTIVE_HIGH>;
+		clocks = <&divclk4>;
+	};
+};