linux-kernel - Re: [PATCH v9 1/7] dt-bindings: net: bluetooth: Add device tree bindings for QTI chip wcn3990

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Date:   Thu, 5 Jul 2018 14:42:50 -0600
From:   Rob Herring <robh@...nel.org>
To:     Balakrishna Godavarthi <bgodavar@...eaurora.org>
Cc:     marcel@...tmann.org, johan.hedberg@...il.com, mka@...omium.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-bluetooth@...r.kernel.org, thierry.escande@...aro.org,
        rtatiya@...eaurora.org, hemantg@...eaurora.org,
        linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH v9 1/7] dt-bindings: net: bluetooth: Add device tree
 bindings for QTI chip wcn3990

On Thu, Jul 05, 2018 at 10:25:09PM +0530, Balakrishna Godavarthi wrote:
> This patch enables regulators for the Qualcomm Bluetooth wcn3990
> controller.
> 
> Signed-off-by: Balakrishna Godavarthi <bgodavar@...eaurora.org>
> ---
> Changes in v9:
>     * updated with latest reg handle and names.
>     * updated max-speed definition. 
> 
> Changes in v8:
>     * Separated the optional entries between two chips
> 
> Changes in v7:
>     * no change.
> 
> Changes in v6:
> 
>     * Changed the oper-speed to max-speed.
> 
> Changes in v5:
> 
>     * Added entry for oper-speed and init-speed.
> 
> ---
>  .../bindings/net/qualcomm-bluetooth.txt       | 28 +++++++++++++++++--
>  1 file changed, 26 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt b/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
> index 0ea18a53cc29..ced58575e2b8 100644
> --- a/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
> +++ b/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
> @@ -10,12 +10,22 @@ device the slave device is attached to.
>  Required properties:
>   - compatible: should contain one of the following:
>     * "qcom,qca6174-bt"
> +   * "qcom,wcn3990-bt"
> +
> +Optional properties for compatible string qcom,qca6174-bt:
>  
> -Optional properties:
>   - enable-gpios: gpio specifier used to enable chip
>   - clocks: clock provided to the controller (SUSCLK_32KHZ)
>  
> -Example:
> +Optional properties for compatible string qcom,wcn3990-bt:
> +
> + - vddio-supply: Bluetooth wcn3990 VDD_IO supply regulator handle.
> + - vddxo-supply: Bluetooth wcn3990 VDD_XO supply regulator handle.
> + - vddrf-supply: Bluetooth wcn3990 VDD_RF supply regulator handle.
> + - vddch0-supply: Bluetooth wcn3990 VDD_CH0 supply regulator handle.
> + - max-speed: see Documentation/devicetree/bindings/serial/slave-device.txt
> +
> +Examples:
>  
>  serial@...0000 {
>  	label = "BT-UART";
> @@ -28,3 +38,17 @@ serial@...0000 {
>  		clocks = <&divclk4>;
>  	};
>  };
> +
> +serial@...000 {
> +	label = "BT-UART";

label is generally intended for when you need to identify the physical 
connector which wouldn't apply here.

> +	status = "okay";

Don't show status in examples.

> +
> +	bluetooth {
> +		compatible = "qcom,wcn3990-bt";
> +		vddio-supply = <&vreg_s4a_1p8>;
> +		vddxosupply = <&vreg_l7a_1p8>;

Typo.

With those fixed,

Reviewed-by: Rob Herring <robh@...nel.org>

> +		vddrf-supply = <&vreg_l17a_1p3>;
> +		vddch0-supply = <&vreg_l25a_3p3>;
> +		max-speed = <3200000>;
> +	};
> +};
> -- 
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
> 
> --
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