| Message ID | 20230407155727.20615-5-quic_devipriy@quicinc.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Add regulator support for IPQ9574 SoC | expand |
On 7.04.2023 17:57, Devi Priya wrote: > Add support for SMPA1 regulator node in IPQ9574. > > Co-developed-by: Praveenkumar I <quic_ipkumar@quicinc.com> > Signed-off-by: Praveenkumar I <quic_ipkumar@quicinc.com> > Signed-off-by: Devi Priya <quic_devipriy@quicinc.com> > --- Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Konrad > Changes in V4: > - Updated the comment as suggested by konrad > s/Updating/Update > s/725000uV/725mV > > arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts | 19 +++++++++++++++++++ > 1 file changed, 19 insertions(+) > > diff --git a/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts b/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts > index 3ae38cf327ea..bdc1434fbe67 100644 > --- a/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts > +++ b/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts > @@ -44,6 +44,25 @@ > }; > }; > > +&rpm_requests { > + regulators { > + compatible = "qcom,rpm-mp5496-regulators"; > + > + ipq9574_s1: s1 { > + /* > + * During kernel bootup, the SoC runs at 800MHz with 875mV set by the bootloaders. > + * During regulator registration, kernel not knowing the initial voltage, > + * considers it as zero and brings up the regulators with minimum supported voltage. > + * Update the regulator-min-microvolt with SVS voltage of 725mV so that > + * the regulators are brought up with 725mV which is sufficient for all the > + * corner parts to operate at 800MHz > + */ > + regulator-min-microvolt = <725000>; > + regulator-max-microvolt = <1075000>; > + }; > + }; > +}; > + > &pcie1_phy { > status = "okay"; > };
diff --git a/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts b/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts index 3ae38cf327ea..bdc1434fbe67 100644 --- a/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts +++ b/arch/arm64/boot/dts/qcom/ipq9574-rdp433.dts @@ -44,6 +44,25 @@ }; }; +&rpm_requests { + regulators { + compatible = "qcom,rpm-mp5496-regulators"; + + ipq9574_s1: s1 { + /* + * During kernel bootup, the SoC runs at 800MHz with 875mV set by the bootloaders. + * During regulator registration, kernel not knowing the initial voltage, + * considers it as zero and brings up the regulators with minimum supported voltage. + * Update the regulator-min-microvolt with SVS voltage of 725mV so that + * the regulators are brought up with 725mV which is sufficient for all the + * corner parts to operate at 800MHz + */ + regulator-min-microvolt = <725000>; + regulator-max-microvolt = <1075000>; + }; + }; +}; + &pcie1_phy { status = "okay"; };