linux-kernel - Re: [PATCH v3 5/7] dt-bindings: power: Add qcom rpmh power domain driver bindings

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Date:   Mon, 11 Jun 2018 22:39:53 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Rajendra Nayak <rnayak@...eaurora.org>
Cc:     viresh.kumar@...aro.org, sboyd@...nel.org, andy.gross@...aro.org,
        ulf.hansson@...aro.org, collinsd@...eaurora.org,
        devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 5/7] dt-bindings: power: Add qcom rpmh power domain
 driver bindings

On Mon 11 Jun 21:40 PDT 2018, Rajendra Nayak wrote:

> Add DT bindings to describe the rpmh powerdomains found on Qualcomm
> Technologies, Inc. SoCs. These power domains communicate a performance
> state to RPMh, which then translates it into corresponding voltage on
> a PMIC rail.
> 
> Signed-off-by: Rajendra Nayak <rnayak@...eaurora.org>
> ---
>  .../devicetree/bindings/power/qcom,rpmhpd.txt | 65 +++++++++++++++++++
>  1 file changed, 65 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/power/qcom,rpmhpd.txt
> 
> diff --git a/Documentation/devicetree/bindings/power/qcom,rpmhpd.txt b/Documentation/devicetree/bindings/power/qcom,rpmhpd.txt
> new file mode 100644
> index 000000000000..41ef7afa6b24
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/qcom,rpmhpd.txt
> @@ -0,0 +1,65 @@
> +Qualcomm RPMh Power domains
> +
> +For RPMh Power domains, we communicate a performance state to RPMh
> +which then translates it into a corresponding voltage on a rail
> +
> +Required Properties:
> + - compatible: Should be one of the following
> +	* qcom,sdm845-rpmhpd: RPMh Power domain for the sdm845 family of SoC

Afaict this binding is identical to the one introduced in patch 1, so I
would suggest that you just add the compatible there.

Regards,
Bjorn

> + - power-domain-cells: number of cells in power domain specifier
> +	must be 1
> + - operating-points-v2: Phandle to the OPP table for the power-domain.
> +	Refer to Documentation/devicetree/bindings/power/power_domain.txt
> +	and Documentation/devicetree/bindings/opp/qcom-opp.txt for more details
> +
> +Example:
> +
> +	rpmhpd: power-controller {
> +		compatible = "qcom,sdm845-rpmhpd";
> +		#power-domain-cells = <1>;
> +		operating-points-v2 = <&rpmhpd_opp_table>;
> +	};
> +
> +	rpmhpd_opp_table: opp-table {
> +		compatible = "operating-points-v2-qcom-level";
> +
> +		rpmhpd_opp_ret: opp1 {
> +			qcom-level = <16>;
> +		};
> +
> +		rpmhpd_opp_min_svs: opp2 {
> +			qcom-level = <48>;
> +		};
> +
> +		rpmhpd_opp_low_svs: opp3 {
> +			qcom-level = <64>;
> +		};
> +
> +		rpmhpd_opp_svs: opp4 {
> +			qcom-level = <128>;
> +		};
> +
> +		rpmhpd_opp_svs_l1: opp5 {
> +			qcom-level = <192>;
> +		};
> +
> +		rpmhpd_opp_nom: opp6 {
> +			qcom-level = <256>;
> +		};
> +
> +		rpmhpd_opp_nom_l1: opp7 {
> +			qcom-level = <320>;
> +		};
> +
> +		rpmhpd_opp_nom_l2: opp8 {
> +			qcom-level = <336>;
> +		};
> +
> +		rpmhpd_opp_turbo: opp9 {
> +			qcom-level = <384>;
> +		};
> +
> +		rpmhpd_opp_turbo_l1: opp10 {
> +			qcom-level = <416>;
> +		};
> +	};
> -- 
> QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
> of Code Aurora Forum, hosted by The Linux Foundation
>