Re: [PATCH v3 2/6] arm64: dts: qcom: qcs6490-rb3gen2: Add node for qps615

Dmitry Baryshkov
2024-11-20T11:03:53Z

On Wed, Nov 20, 2024 at 09:06:03AM +0100, Krzysztof Kozlowski wrote:
> On Tue, Nov 12, 2024 at 08:31:34PM +0530, Krishna chaitanya chundru wrote:
> > Add QPS615 PCIe switch node which has 3 downstream ports and in one
> > downstream port two embedded ethernet devices are present.
> >
> > Power to the QPS615 is supplied through two LDO regulators, controlled
> > by two GPIOs, these are added as fixed regulators. And the QPS615 is
> > configured through i2c.
> >
> > Signed-off-by: Krishna chaitanya chundru <quic_krichai@quicinc.com>
> > ---
> > arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 115 +++++++++++++++++++++++++++
> > arch/arm64/boot/dts/qcom/sc7280.dtsi | 2 +-
> > 2 files changed, 116 insertions(+), 1 deletion(-)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> > index 0d45662b8028..0e890841b600 100644
> > --- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> > +++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> > @@ -202,6 +202,30 @@ vph_pwr: vph-pwr-regulator {
> > regulator-min-microvolt = <3700000>;
> > regulator-max-microvolt = <3700000>;
> > };
> > +
> > + vdd_ntn_0p9: regulator-vdd-ntn-0p9 {
> > + compatible = "regulator-fixed";
> > + regulator-name = "VDD_NTN_0P9";
> > + gpio = <&pm8350c_gpios 2 GPIO_ACTIVE_HIGH>;
> > + regulator-min-microvolt = <899400>;
> > + regulator-max-microvolt = <899400>;
> > + enable-active-high;
> > + pinctrl-0 = <&ntn_0p9_en>;
> > + pinctrl-names = "default";
> > + regulator-enable-ramp-delay = <4300>;
> > + };
> > +
> > + vdd_ntn_1p8: regulator-vdd-ntn-1p8 {
> > + compatible = "regulator-fixed";
> > + regulator-name = "VDD_NTN_1P8";
> > + gpio = <&pm8350c_gpios 3 GPIO_ACTIVE_HIGH>;
> > + regulator-min-microvolt = <1800000>;
> > + regulator-max-microvolt = <1800000>;
> > + enable-active-high;
> > + pinctrl-0 = <&ntn_1p8_en>;
> > + pinctrl-names = "default";
> > + regulator-enable-ramp-delay = <10000>;
> > + };
> > };
> >
> > &apps_rsc {
> > @@ -684,6 +708,75 @@ &mdss_edp_phy {
> > status = "okay";
> > };
> >
> > +&pcie1_port {
> > + pcie@0,0 {
> > + compatible = "pci1179,0623";
>
> The switch is part of SoC or board? This is confusing, I thought QPS615
> is the SoC.

QCS615 is the SoC, QPS615 is a switch.

>
> > + reg = <0x10000 0x0 0x0 0x0 0x0>;
> > + #address-cells = <3>;
> > + #size-cells = <2>;
>
> Best regards,
> Krzysztof
>

--
With best wishes
Dmitry