Add binding document for serial bluetooth chips using
Broadcom protocol.
Signed-off-by: Loic Poulain <loic.poulain@xxxxxxxxx>
---
v2: dt-bindings as separate patch
rebase on upcoming pi3 dts changes
v3: changes in bcm serdev drivers:
name refactoring and additional comments
Add generic host_set_baudrate method
Use agnostic device_property_read
v4: changes in doc and dts:
Add additional params to broadcom bt dt-bindings
Set the max baudrate to 2000000 instead of 921600
use chosen/stdout-path instead of console=
remove useless earlyprintk
same changes in bcm283x.dtsi
.../devicetree/bindings/net/broadcom-bluetooth.txt | 35 ++++++++++++++++++++++
1 file changed, 35 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/broadcom-bluetooth.txt
diff --git a/Documentation/devicetree/bindings/net/broadcom-bluetooth.txt b/Documentation/devicetree/bindings/net/broadcom-bluetooth.txt
new file mode 100644
index 0000000..4194ff7
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/broadcom-bluetooth.txt
@@ -0,0 +1,35 @@
+Broadcom Bluetooth Chips
+---------------------
+
+This documents the binding structure and common properties for serial
+attached Broadcom devices.
+
+Serial attached Broadcom 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:
+ * "brcm,bcm43438-bt"
+
+Optional properties:
+
+ - max-speed: see Documentation/devicetree/bindings/serial/slave-device.txt
+ - shutdown-gpios: GPIO specifier, used to enable the BT module
+ - device-wakeup-gpios: GPIO specifier, used to wakeup the controller
+ - host-wakeup-gpios: GPIO specifier, used to wakeup the host processor
+ - clocks: clock specifier if external clock provided to the controller
+ - clock-names: should be "extclk"
+
+
+Example:
+
+&uart2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart2_pins>;
+
+ bluetooth {
+ compatible = "brcm,bcm43438-bt";
+ max-speed = <921600>;
+ };
+};
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
