Messages in this thread | | | Date | Tue, 8 Nov 2022 12:37:39 +0100 | Subject | Re: [RFC PATCH 1/2] dt-bindings: net: h4-bluetooth: add new bindings for hci_h4 | From | Krzysztof Kozlowski <> |
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On 08/11/2022 06:55, Dominique Martinet wrote: > Add devicetree binding to support defining a bluetooth device using the h4 > uart protocol >
subject: drop second redundant "bindings"
> This was tested with a NXP wireless+BT AW-XM458 module, but might > benefit others as the H4 protocol seems often used. > > Signed-off-by: Dominique Martinet <dominique.martinet@atmark-techno.com> > --- > .../devicetree/bindings/net/h4-bluetooth.yaml | 49 +++++++++++++++++++ > 1 file changed, 49 insertions(+) > create mode 100644 Documentation/devicetree/bindings/net/h4-bluetooth.yaml > > diff --git a/Documentation/devicetree/bindings/net/h4-bluetooth.yaml b/Documentation/devicetree/bindings/net/h4-bluetooth.yaml > new file mode 100644 > index 000000000000..5d11b89ca386 > --- /dev/null > +++ b/Documentation/devicetree/bindings/net/h4-bluetooth.yaml
If the schema is for one specific device, then filename matching the compatible, so nxp,aw-xm458-bt.yaml... but I understand you want to describe here class of devices using H4 Bluetooth? Won't they need their own specific properties?
> @@ -0,0 +1,49 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/net/h4-bluetooth.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: H4 Bluetooth > + > +maintainers: > + - Dominique Martinet <dominique.martinet@atmark-techno.com> > + > +description: > + H4 is a common bluetooth over uart protocol.
Bluetooth UART
> + For example, the AW-XM458 is a WiFi + BT module where the WiFi part is > + connected over PCI (M.2), while BT is connected over serial speaking > + the H4 protocol. Its firmware is sent on the PCI side. > + > +properties: > + compatible: > + enum: > + - nxp,aw-xm458-bt > + > + max-speed: true > + > +required: > + - compatible > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/gpio/gpio.h> > + #include <dt-bindings/clock/imx8mp-clock.h> > + > + uart1 {
uart
> + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_uart1>; > + assigned-clocks = <&clk IMX8MP_CLK_UART1>; > + assigned-clock-parents = <&clk IMX8MP_SYS_PLL1_80M>;
Drop unrelated properties.
> + status = "okay";
Drop status.
> + fsl,dte-mode = <1>; > + fsl,uart-has-rtscts;
Are these two related to this hardware?
> + > + > + bluetooth { > + compatible = "nxp,aw-xm458-bt"; > + max-speed = <3000000>; > + }; > + };
Best regards, Krzysztof
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