| Message ID | 20201005225914.315852-2-dmitry.baryshkov@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | clk: qcom: handle power domains supplies for GDSC | expand |
Quoting Dmitry Baryshkov (2020-10-05 15:59:12) > SM8250 requires special power domain for accessing MMDS_GDSC registers. Heh, not sure it's special. > Add bindings for the MMCX power domain. > > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> > Reviewed-by: Rob Herring <robh@kernel.org> > --- > .../bindings/clock/qcom,sdm845-dispcc.yaml | 28 +++++++++++++++++++ > 1 file changed, 28 insertions(+) > > diff --git a/Documentation/devicetree/bindings/clock/qcom,sdm845-dispcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sdm845-dispcc.yaml > index 4a3be733d042..ff0db55470ac 100644 > --- a/Documentation/devicetree/bindings/clock/qcom,sdm845-dispcc.yaml > +++ b/Documentation/devicetree/bindings/clock/qcom,sdm845-dispcc.yaml > @@ -97,5 +108,22 @@ examples: > #clock-cells = <1>; > #reset-cells = <1>; > #power-domain-cells = <1>; > + /* this is a part of sm8250 setup the power domain example */ > + power-domains = <&rpmhpd SDM845_CX>; > + power-domain-names = "mmcx"; > + required-opps = <&rpmhpd_opp_low_svs>; > + }; > + rpmhpd: power-controller { Do we need this node in the example? I think it isn't required but I guess it's OK. > + compatible = "qcom,sdm845-rpmhpd"; > + #power-domain-cells = <1>; > + operating-points-v2 = <&rpmhpd_opp_table>; > + > + rpmhpd_opp_table: opp-table { > + compatible = "operating-points-v2"; > + > + rpmhpd_opp_low_svs: opp3 {
Quoting Dmitry Baryshkov (2020-10-05 15:59:12) > @@ -97,5 +108,22 @@ examples: > #clock-cells = <1>; > #reset-cells = <1>; > #power-domain-cells = <1>; > + /* this is a part of sm8250 setup the power domain example */ What does this comment mean? > + power-domains = <&rpmhpd SDM845_CX>; > + power-domain-names = "mmcx"; > + required-opps = <&rpmhpd_opp_low_svs>; > + };
On 14/10/2020 03:46, Stephen Boyd wrote: > Quoting Dmitry Baryshkov (2020-10-05 15:59:12) >> SM8250 requires special power domain for accessing MMDS_GDSC registers. > > Heh, not sure it's special. > >> Add bindings for the MMCX power domain. >> >> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> >> Reviewed-by: Rob Herring <robh@kernel.org> >> --- >> .../bindings/clock/qcom,sdm845-dispcc.yaml | 28 +++++++++++++++++++ >> 1 file changed, 28 insertions(+) >> >> diff --git a/Documentation/devicetree/bindings/clock/qcom,sdm845-dispcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sdm845-dispcc.yaml >> index 4a3be733d042..ff0db55470ac 100644 >> --- a/Documentation/devicetree/bindings/clock/qcom,sdm845-dispcc.yaml >> +++ b/Documentation/devicetree/bindings/clock/qcom,sdm845-dispcc.yaml >> @@ -97,5 +108,22 @@ examples: >> #clock-cells = <1>; >> #reset-cells = <1>; >> #power-domain-cells = <1>; >> + /* this is a part of sm8250 setup the power domain example */ >> + power-domains = <&rpmhpd SDM845_CX>; >> + power-domain-names = "mmcx"; >> + required-opps = <&rpmhpd_opp_low_svs>; >> + }; >> + rpmhpd: power-controller { > > Do we need this node in the example? I think it isn't required but I > guess it's OK. It is to be able to resolve "power-domains" and "required-opps" properties values. >> + compatible = "qcom,sdm845-rpmhpd"; >> + #power-domain-cells = <1>; >> + operating-points-v2 = <&rpmhpd_opp_table>; >> + >> + rpmhpd_opp_table: opp-table { >> + compatible = "operating-points-v2"; >> + >> + rpmhpd_opp_low_svs: opp3 {
diff --git a/Documentation/devicetree/bindings/clock/qcom,sdm845-dispcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sdm845-dispcc.yaml index 4a3be733d042..ff0db55470ac 100644 --- a/Documentation/devicetree/bindings/clock/qcom,sdm845-dispcc.yaml +++ b/Documentation/devicetree/bindings/clock/qcom,sdm845-dispcc.yaml @@ -58,6 +58,16 @@ properties: reg: maxItems: 1 + power-domains: + maxItems: 1 + + power-domain-names: + items: + - const: mmcx + + required-opps: + maxItems: 1 + required: - compatible - reg @@ -73,6 +83,7 @@ examples: - | #include <dt-bindings/clock/qcom,gcc-sdm845.h> #include <dt-bindings/clock/qcom,rpmh.h> + #include <dt-bindings/power/qcom-rpmpd.h> clock-controller@af00000 { compatible = "qcom,sdm845-dispcc"; reg = <0x0af00000 0x10000>; @@ -97,5 +108,22 @@ examples: #clock-cells = <1>; #reset-cells = <1>; #power-domain-cells = <1>; + /* this is a part of sm8250 setup the power domain example */ + power-domains = <&rpmhpd SDM845_CX>; + power-domain-names = "mmcx"; + required-opps = <&rpmhpd_opp_low_svs>; + }; + 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"; + + rpmhpd_opp_low_svs: opp3 { + opp-level = <RPMH_REGULATOR_LEVEL_LOW_SVS>; + }; + }; }; ...