On Fri, Feb 16, 2018 at 10:13:48AM +0530, Govind Singh wrote:
> Add device tree binding documentation details for wcn3990
> wifi block present in Qualcomm SDM845/APQ8098 SoC into
> "qcom,ath10k.txt".
> 
> Signed-off-by: Govind Singh <govi...@codeaurora.org>
> ---
>  .../bindings/net/wireless/qcom,ath10k.txt          | 35 
> ++++++++++++++++++++++
>  1 file changed, 35 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt 
> b/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt
> index 3d2a031..e34d8f8 100644
> --- a/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt
> +++ b/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt
> @@ -4,6 +4,7 @@ Required properties:
>  - compatible: Should be one of the following:
>       * "qcom,ath10k"
>       * "qcom,ipq4019-wifi"
> +     * "qcom,wcn3990-wifi"
>  
>  PCI based devices uses compatible string "qcom,ath10k" and takes calibration
>  data along with board specific data via "qcom,ath10k-calibration-data".
> @@ -18,8 +19,11 @@ In general, entry "qcom,ath10k-pre-calibration-data" and
>  "qcom,ath10k-calibration-data" conflict with each other and only one
>  can be provided per device.
>  
> +SNOC based devices (i.e. wcn3990) uses compatible string "qcom,wcn3990-wifi".
> +
>  Optional properties:
>  - reg: Address and length of the register set for the device.
> +- reg-names: Names of the memory regions defined in reg entry.

You must define what the names are and how many (so reg needs updating 
too if there is more than 1).

Though with only 1 -names, it is kind of pointless.


>  - resets: Must contain an entry for each entry in reset-names.
>            See ../reset/reseti.txt for details.
>  - reset-names: Must include the list of following reset names,
> @@ -49,6 +53,12 @@ Optional properties:
>                                hw versions.
>  - qcom,ath10k-pre-calibration-data : pre calibration data as an array,
>                                    the length can vary between hw versions.
> +- qcom,<supply-name>-supply: handle to the regulator device tree node
> +                        optional "supply-name" is "vdd-0.8-cx-mx".

You can drop the qcom prefix. Just name this "vdd-0.8-cx-mx-supply".

> +- qcom,<supply>-config: Specifies voltage levels for supply. Should be
> +                       specified in pairs (min, max), units uV.  There can
> +                        be optional load in uA and Regulator settle delay in
> +                        uS.

We have standard regulator properties for this I think.

>  
>  Example (to supply the calibration data alone):
>  
> @@ -119,3 +129,28 @@ wifi0: wifi@a000000 {
>       qcom,msi_base = <0x40>;
>       qcom,ath10k-pre-calibration-data = [ 01 02 03 ... ];
>  };
> +
> +Example (to supply wcn3990 SoC wifi block details):
> +
> +qcom,msm_ath10k@18000000 {

wifi@...

> +             compatible = "qcom,wcn3990-wifi";
> +             reg = <0x18800000 0x800000>;
> +             reg-names = "membase";
> +             clocks = <&clock_gcc clk_aggre2_noc_clk>;
> +             clock-names = "smmu_aggre2_noc_clk"
> +             interrupts =
> +                        <0 130 0 /* CE0 */ >,
> +                        <0 131 0 /* CE1 */ >,
> +                        <0 132 0 /* CE2 */ >,
> +                        <0 133 0 /* CE3 */ >,
> +                        <0 134 0 /* CE4 */ >,
> +                        <0 135 0 /* CE5 */ >,
> +                        <0 136 0 /* CE6 */ >,
> +                        <0 137 0 /* CE7 */ >,
> +                        <0 138 0 /* CE8 */ >,
> +                        <0 139 0 /* CE9 */ >,
> +                        <0 140 0 /* CE10 */ >,
> +                        <0 141 0 /* CE11 */ >;
> +             qcom,vdd-0.8-cx-mx-supply = <&pm8998_l5>;
> +             qcom,vdd-0.8-cx-mx-config = <800000 800000 2400 1000>;
> +};
> -- 
> 1.9.1
> 
> --
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