Hi Thierry,
> Add binding document for serial bluetooth chips using Qualcomm protocol.
>
> Signed-off-by: Thierry Escande <thierry.escande@xxxxxxxxxx>
> ---
>
> 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 | 34 ++++++++++++++++++++++
> 1 file changed, 34 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
>
> diff --git a/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt b/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
> new file mode 100644
> index 000000000000..cdb14b96c229
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
> @@ -0,0 +1,34 @@
> +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"
> + - bt-disable-n-gpios: gpio specifier, used to enable chip during probe
> + - pinctrl-0: pin phandle for bt_en gpio
> + - clocks: clock phandle for SUSCLK_32KHZ
> +
> +Example:
> +
> +serial@7570000 {
> + pinctrl-names = "default", "sleep";
> + pinctrl-0 = <&blsp1_uart1_default>;
> + pinctrl-1 = <&blsp1_uart1_sleep>;
> +
> + bluetooth {
> + compatible = "qcom,qca6174-bt";
> +
> + bt-disable-n-gpios = <&pm8994_gpios 19 GPIO_ACTIVE_HIGH>;
can we use a common name here. I think that Nokia and Broadcom drivers define one. And if this is the enable/shutdown GPIO, we should name it consistently across all manufacturers. It essentially does the same on Bluetooth UART chips no matter what chip is behind them.
Regards
Marcel
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