summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/net/ti-bluetooth.txt
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
commit76cb841cb886eef6b3bee341a2266c76578724ad (patch)
treef5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /Documentation/devicetree/bindings/net/ti-bluetooth.txt
parentInitial commit. (diff)
downloadlinux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz
linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/net/ti-bluetooth.txt')
-rw-r--r--Documentation/devicetree/bindings/net/ti-bluetooth.txt61
1 files changed, 61 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/ti-bluetooth.txt b/Documentation/devicetree/bindings/net/ti-bluetooth.txt
new file mode 100644
index 000000000..6d03ff8c7
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/ti-bluetooth.txt
@@ -0,0 +1,61 @@
+Texas Instruments Bluetooth Chips
+---------------------------------
+
+This documents the binding structure and common properties for serial
+attached TI Bluetooth devices. The following chips are included in this
+binding:
+
+* TI CC256x Bluetooth devices
+* TI WiLink 7/8 (wl12xx/wl18xx) Shared Transport BT/FM/GPS devices
+
+TI WiLink devices have a UART interface for providing Bluetooth, FM radio,
+and GPS over what's called "shared transport". The shared transport is
+standard BT HCI protocol with additional channels for the other functions.
+
+TI WiLink devices also have a separate WiFi interface as described in
+wireless/ti,wlcore.txt.
+
+This bindings follows the UART slave device binding in
+../serial/slave-device.txt.
+
+Required properties:
+ - compatible: should be one of the following:
+ "ti,cc2560"
+ "ti,wl1271-st"
+ "ti,wl1273-st"
+ "ti,wl1281-st"
+ "ti,wl1283-st"
+ "ti,wl1285-st"
+ "ti,wl1801-st"
+ "ti,wl1805-st"
+ "ti,wl1807-st"
+ "ti,wl1831-st"
+ "ti,wl1835-st"
+ "ti,wl1837-st"
+
+Optional properties:
+ - enable-gpios : GPIO signal controlling enabling of BT. Active high.
+ - vio-supply : Vio input supply (1.8V)
+ - vbat-supply : Vbat input supply (2.9-4.8V)
+ - clocks : Must contain an entry, for each entry in clock-names.
+ See ../clocks/clock-bindings.txt for details.
+ - clock-names : Must include the following entry:
+ "ext_clock" (External clock provided to the TI combo chip).
+ - nvmem-cells: phandle to nvmem data cell that contains a 6 byte BD address
+ with the most significant byte first (big-endian).
+ - nvmem-cell-names: "bd-address" (required when nvmem-cells is specified)
+
+Example:
+
+&serial0 {
+ compatible = "ns16550a";
+ ...
+ bluetooth {
+ compatible = "ti,wl1835-st";
+ enable-gpios = <&gpio1 7 GPIO_ACTIVE_HIGH>;
+ clocks = <&clk32k_wl18xx>;
+ clock-names = "ext_clock";
+ nvmem-cells = <&bd_address>;
+ nvmem-cell-names = "bd-address";
+ };
+};