[PATCH v5 1/7] dt-bindings: net: bluetooth: Add mediatek-bluetooth
From: marcel@holtmann.org (Marcel Holtmann)
Date: 2018-07-14 16:26:30
Also in:
linux-bluetooth, linux-devicetree, linux-mediatek, lkml
Hi Sean,
quoted hunk ↗ jump to hunk
Add binding document for a SoC built-in device using MediaTek protocol. Which could be found on MT7622 SoC or other similar MediaTek SoCs. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Reviewed-by: Rob Herring <robh@kernel.org> --- .../devicetree/bindings/net/mediatek-bluetooth.txt | 35 ++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/mediatek-bluetooth.txtdiff --git a/Documentation/devicetree/bindings/net/mediatek-bluetooth.txt b/Documentation/devicetree/bindings/net/mediatek-bluetooth.txt new file mode 100644 index 0000000..1335429 --- /dev/null +++ b/Documentation/devicetree/bindings/net/mediatek-bluetooth.txt@@ -0,0 +1,35 @@ +MediaTek SoC built-in Bluetooth Devices +================================== + +This device is a serial attached device to BTIF device and thus it must be a +child node of the serial node with BTIF. The dt-bindings details for BTIF +device can be known via Documentation/devicetree/bindings/serial/8250.txt. + +Required properties: + +- compatible: Must be one of + "mediatek,mt7622-bluetooth"": for MT7622 SoC
this does not match with the example below. And one of, should be normally be a list.
+- clocks: Should be the clock specifiers corresponding to the entry in
+ clock-names property.
+- clock-names: Should contain "ref" entries.
+- power-domains: Phandle to the power domain that the device is part of
+
+Example:
+
+ btif: serial at 1100c000 {
+ compatible = "mediatek,mt7622-btif",
+ "mediatek,mtk-btif";
+ reg = <0 0x1100c000 0 0x1000>;
+ interrupts = <GIC_SPI 90 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&pericfg CLK_PERI_BTIF_PD>;
+ clock-names = "main";
+ reg-shift = <2>;
+ reg-io-width = <4>;
+
+ bluetooth {
+ compatible = "mediatek,mt7622-bluetooth";
+ power-domains = <&scpsys MT7622_POWER_DOMAIN_WB>;
+ clocks = <&clk25m>;
+ clock-names = "ref";
+ };
+ };Regards Marcel