linux-kernel - Re: [PATCH v2 2/2] dt-bindings: net: bluetooth: Add device tree bindings for QTI chip WCN3991

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Message-ID: <20200131223626.GA237926@google.com>
Date:   Fri, 31 Jan 2020 14:36:26 -0800
From:   Matthias Kaehlcke <mka@...omium.org>
To:     Venkata Lakshmi Narayana Gubba <gubbaven@...eaurora.org>
Cc:     marcel@...tmann.org, johan.hedberg@...il.com,
        linux-kernel@...r.kernel.org, linux-bluetooth@...r.kernel.org,
        robh@...nel.org, hemantg@...eaurora.org,
        linux-arm-msm@...r.kernel.org, bgodavar@...eaurora.org,
        tientzu@...omium.org, seanpaul@...omium.org, rjliao@...eaurora.org,
        yshavit@...gle.com, Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        devicetree@...r.kernel.org
Subject: Re: [PATCH v2 2/2] dt-bindings: net: bluetooth: Add device tree
 bindings for QTI chip WCN3991

+ DT folks

On Fri, Jan 31, 2020 at 01:08:55PM +0530, Venkata Lakshmi Narayana Gubba wrote:
> Add compatible string for the Qualcomm WCN3991 Bluetooth controller
> 
> Signed-off-by: Venkata Lakshmi Narayana Gubba <gubbaven@...eaurora.org>
> ---
>  Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt b/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
> index 68b67d9..e72045d 100644
> --- a/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
> +++ b/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
> @@ -11,6 +11,7 @@ Required properties:
>   - compatible: should contain one of the following:
>     * "qcom,qca6174-bt"
>     * "qcom,wcn3990-bt"
> +   * "qcom,wcn3991-bt"
>     * "qcom,wcn3998-bt"
>  
>  Optional properties for compatible string qcom,qca6174-bt:
> @@ -30,6 +31,7 @@ Optional properties for compatible string qcom,wcn399x-bt:
>  
>   - max-speed: see Documentation/devicetree/bindings/serial/slave-device.txt
>   - firmware-name: specify the name of nvm firmware to load
> + - clocks: clock provided to the controller
>  
>  Examples:
>  
> @@ -56,5 +58,6 @@ serial@...000 {
>  		vddch0-supply = <&vreg_l25a_3p3>;
>  		max-speed = <3200000>;
>  		firmware-name = "crnv21.bin";
> +		clocks = <&rpmhcc>;

That specifies a clock controller, not a clock.

For a device with the SC7180 SoC we use this:

		clocks = <&rpmhcc RPMH_RF_CLK2>;

>  	};
>  };