dt-bindings: power: rpmpd: Convert rpmpd bindings to yaml
Convert RPM/RPMH power-domain bindings to yaml. Reviewed-by: Rajendra Nayak <rnayak@codeaurora.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Sibi Sankar <sibis@codeaurora.org> Link: https://lore.kernel.org/r/20191220064823.6115-2-sibis@codeaurora.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This commit is contained in:
Sibi Sankar
Bjorn Andersson
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Коммит
461e58f034
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Qualcomm RPM/RPMh Power domains
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For RPM/RPMh Power domains, we communicate a performance state to RPM/RPMh
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which then translates it into a corresponding voltage on a rail
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Required Properties:
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- compatible: Should be one of the following
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* qcom,msm8976-rpmpd: RPM Power domain for the msm8976 family of SoC
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* qcom,msm8996-rpmpd: RPM Power domain for the msm8996 family of SoC
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* qcom,msm8998-rpmpd: RPM Power domain for the msm8998 family of SoC
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* qcom,qcs404-rpmpd: RPM Power domain for the qcs404 family of SoC
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* qcom,sc7180-rpmhpd: RPMh Power domain for the sc7180 family of SoC
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* qcom,sdm845-rpmhpd: RPMh Power domain for the sdm845 family of SoC
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* qcom,sm8150-rpmhpd: RPMh Power domain for the sm8150 family of SoC
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- #power-domain-cells: number of cells in Power domain specifier
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must be 1.
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- operating-points-v2: Phandle to the OPP table for the Power domain.
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Refer to Documentation/devicetree/bindings/power/power_domain.txt
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and Documentation/devicetree/bindings/opp/opp.txt for more details
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Refer to <dt-bindings/power/qcom-rpmpd.h> for the level values for
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various OPPs for different platforms as well as Power domain indexes
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Example: rpmh power domain controller and OPP table
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#include <dt-bindings/power/qcom-rpmhpd.h>
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opp-level values specified in the OPP tables for RPMh power domains
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should use the RPMH_REGULATOR_LEVEL_* constants from
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<dt-bindings/power/qcom-rpmhpd.h>
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rpmhpd: power-controller {
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compatible = "qcom,sdm845-rpmhpd";
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#power-domain-cells = <1>;
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operating-points-v2 = <&rpmhpd_opp_table>;
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rpmhpd_opp_table: opp-table {
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compatible = "operating-points-v2";
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rpmhpd_opp_ret: opp1 {
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opp-level = <RPMH_REGULATOR_LEVEL_RETENTION>;
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};
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rpmhpd_opp_min_svs: opp2 {
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opp-level = <RPMH_REGULATOR_LEVEL_MIN_SVS>;
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};
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rpmhpd_opp_low_svs: opp3 {
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opp-level = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
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};
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rpmhpd_opp_svs: opp4 {
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opp-level = <RPMH_REGULATOR_LEVEL_SVS>;
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};
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rpmhpd_opp_svs_l1: opp5 {
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opp-level = <RPMH_REGULATOR_LEVEL_SVS_L1>;
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};
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rpmhpd_opp_nom: opp6 {
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opp-level = <RPMH_REGULATOR_LEVEL_NOM>;
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};
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rpmhpd_opp_nom_l1: opp7 {
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opp-level = <RPMH_REGULATOR_LEVEL_NOM_L1>;
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};
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rpmhpd_opp_nom_l2: opp8 {
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opp-level = <RPMH_REGULATOR_LEVEL_NOM_L2>;
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};
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rpmhpd_opp_turbo: opp9 {
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opp-level = <RPMH_REGULATOR_LEVEL_TURBO>;
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};
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rpmhpd_opp_turbo_l1: opp10 {
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opp-level = <RPMH_REGULATOR_LEVEL_TURBO_L1>;
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};
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};
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};
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Example: rpm power domain controller and OPP table
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rpmpd: power-controller {
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compatible = "qcom,msm8996-rpmpd";
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#power-domain-cells = <1>;
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operating-points-v2 = <&rpmpd_opp_table>;
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rpmpd_opp_table: opp-table {
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compatible = "operating-points-v2";
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rpmpd_opp_low: opp1 {
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opp-level = <1>;
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};
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rpmpd_opp_ret: opp2 {
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opp-level = <2>;
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};
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rpmpd_opp_svs: opp3 {
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opp-level = <3>;
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};
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rpmpd_opp_normal: opp4 {
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opp-level = <4>;
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};
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rpmpd_opp_high: opp5 {
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opp-level = <5>;
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};
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rpmpd_opp_turbo: opp6 {
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opp-level = <6>;
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};
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};
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};
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Example: Client/Consumer device using OPP table
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leaky-device0@12350000 {
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compatible = "foo,i-leak-current";
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reg = <0x12350000 0x1000>;
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power-domains = <&rpmhpd SDM845_MX>;
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operating-points-v2 = <&leaky_opp_table>;
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};
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leaky_opp_table: opp-table {
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compatible = "operating-points-v2";
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opp1 {
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opp-hz = /bits/ 64 <144000>;
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required-opps = <&rpmhpd_opp_low>;
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};
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opp2 {
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opp-hz = /bits/ 64 <400000>;
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required-opps = <&rpmhpd_opp_ret>;
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};
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opp3 {
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opp-hz = /bits/ 64 <20000000>;
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required-opps = <&rpmpd_opp_svs>;
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};
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opp4 {
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opp-hz = /bits/ 64 <25000000>;
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required-opps = <&rpmpd_opp_normal>;
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};
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};
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@ -0,0 +1,170 @@
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/power/qcom,rpmpd.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Qualcomm RPM/RPMh Power domains
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maintainers:
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- Rajendra Nayak <rnayak@codeaurora.org>
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description:
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For RPM/RPMh Power domains, we communicate a performance state to RPM/RPMh
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which then translates it into a corresponding voltage on a rail.
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properties:
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compatible:
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enum:
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- qcom,msm8976-rpmpd
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- qcom,msm8996-rpmpd
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- qcom,msm8998-rpmpd
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- qcom,qcs404-rpmpd
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- qcom,sc7180-rpmhpd
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- qcom,sdm845-rpmhpd
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- qcom,sm8150-rpmhpd
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'#power-domain-cells':
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const: 1
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operating-points-v2: true
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opp-table:
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type: object
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required:
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- compatible
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- '#power-domain-cells'
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- operating-points-v2
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additionalProperties: false
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examples:
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- |
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// Example 1 (rpmh power domain controller and OPP table):
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#include <dt-bindings/power/qcom-rpmpd.h>
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rpmhpd: power-controller {
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compatible = "qcom,sdm845-rpmhpd";
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#power-domain-cells = <1>;
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operating-points-v2 = <&rpmhpd_opp_table>;
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rpmhpd_opp_table: opp-table {
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compatible = "operating-points-v2";
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rpmhpd_opp_ret: opp1 {
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opp-level = <RPMH_REGULATOR_LEVEL_RETENTION>;
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};
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rpmhpd_opp_min_svs: opp2 {
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opp-level = <RPMH_REGULATOR_LEVEL_MIN_SVS>;
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};
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rpmhpd_opp_low_svs: opp3 {
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opp-level = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
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};
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rpmhpd_opp_svs: opp4 {
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opp-level = <RPMH_REGULATOR_LEVEL_SVS>;
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};
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rpmhpd_opp_svs_l1: opp5 {
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opp-level = <RPMH_REGULATOR_LEVEL_SVS_L1>;
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};
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rpmhpd_opp_nom: opp6 {
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opp-level = <RPMH_REGULATOR_LEVEL_NOM>;
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};
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rpmhpd_opp_nom_l1: opp7 {
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opp-level = <RPMH_REGULATOR_LEVEL_NOM_L1>;
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};
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rpmhpd_opp_nom_l2: opp8 {
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opp-level = <RPMH_REGULATOR_LEVEL_NOM_L2>;
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};
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rpmhpd_opp_turbo: opp9 {
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opp-level = <RPMH_REGULATOR_LEVEL_TURBO>;
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};
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rpmhpd_opp_turbo_l1: opp10 {
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opp-level = <RPMH_REGULATOR_LEVEL_TURBO_L1>;
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};
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};
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};
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- |
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// Example 2 (rpm power domain controller and OPP table):
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rpmpd: power-controller {
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compatible = "qcom,msm8996-rpmpd";
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#power-domain-cells = <1>;
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operating-points-v2 = <&rpmpd_opp_table>;
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rpmpd_opp_table: opp-table {
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compatible = "operating-points-v2";
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rpmpd_opp_low: opp1 {
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opp-level = <1>;
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};
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rpmpd_opp_ret: opp2 {
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opp-level = <2>;
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};
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rpmpd_opp_svs: opp3 {
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opp-level = <3>;
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};
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rpmpd_opp_normal: opp4 {
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opp-level = <4>;
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};
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rpmpd_opp_high: opp5 {
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opp-level = <5>;
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};
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rpmpd_opp_turbo: opp6 {
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opp-level = <6>;
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};
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};
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};
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- |
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// Example 3 (Client/Consumer device using OPP table):
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leaky-device0@12350000 {
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compatible = "foo,i-leak-current";
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reg = <0x12350000 0x1000>;
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power-domains = <&rpmhpd 0>;
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operating-points-v2 = <&leaky_opp_table>;
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};
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leaky_opp_table: opp-table {
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compatible = "operating-points-v2";
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opp1 {
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opp-hz = /bits/ 64 <144000>;
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required-opps = <&rpmhpd_opp_low>;
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};
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opp2 {
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opp-hz = /bits/ 64 <400000>;
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required-opps = <&rpmhpd_opp_ret>;
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};
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opp3 {
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opp-hz = /bits/ 64 <20000000>;
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required-opps = <&rpmpd_opp_svs>;
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};
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opp4 {
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opp-hz = /bits/ 64 <25000000>;
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required-opps = <&rpmpd_opp_normal>;
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};
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};
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...
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