Messages in this thread | | | Date | Tue, 24 Jan 2023 12:49:53 +0530 | Subject | Re: [PATCH 6/7] arm64: dts: Add ipq9574 SoC and AL02 board support | From | Devi Priya <> |
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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
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