Re: [PATCH 6/7] arm64: dts: Add ipq9574 SoC and AL02 board support

[Devi Priya]

On 1/13/2023 7:50 PM, Krzysztof Kozlowski wrote:
> On 13/01/2023 14:29, Devi Priya wrote:
> > > > +
> > > > +	soc: soc@0 {
> > > > +		#address-cells = <1>;
> > > > +		#size-cells = <1>;
> > > > +		ranges = <0 0 0 0xffffffff>;
> > > > +		compatible = "simple-bus";
> > > > +
> > > > +		tlmm: pinctrl@1000000 {
> > > > +			compatible = "qcom,ipq9574-tlmm";
> > > > +			reg = <0x01000000 0x300000>;
> > > > +			interrupts = <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>;
> > > > +			gpio-controller;
> > > > +			#gpio-cells = <2>;
> > > > +			gpio-ranges = <&tlmm 0 0 65>;
> > > > +			gpio-reserved-ranges = <59 1>;
> > >
> > > Hm, why reserved ranges are in SoC?
> > As the gpio is forbidden on all ipq9574 boards, we have added it in SoC
>
> Why it is forbidden on all boards? I guess it depends on the firmware
> and this can differ, can't it?
This GPIO is protected and used by the TZ firmware and is forbidden on 
all the boards & firmware
> Best regards,
> Krzysztof
Regards,
Devi Priya