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

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Message-ID: <84aa79c3-b793-0d0e-d6a5-035aff5a17b4@linaro.org>
Date:   Fri, 13 Jan 2023 15:20:25 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Devi Priya <quic_devipriy@...cinc.com>, agross@...nel.org,
        andersson@...nel.org, konrad.dybcio@...aro.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, mturquette@...libre.com,
        sboyd@...nel.org, linus.walleij@...aro.org,
        catalin.marinas@....com, will@...nel.org, p.zabel@...gutronix.de,
        shawnguo@...nel.org, arnd@...db.de, marcel.ziswiler@...adex.com,
        dmitry.baryshkov@...aro.org, nfraprado@...labora.com,
        broonie@...nel.org, tdas@...eaurora.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-gpio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:     quic_srichara@...cinc.com, quic_gokulsri@...cinc.com,
        quic_sjaganat@...cinc.com, quic_kathirav@...cinc.com,
        quic_arajkuma@...cinc.com, quic_anusha@...cinc.com,
        quic_poovendh@...cinc.com
Subject: Re: [PATCH 6/7] arm64: dts: Add ipq9574 SoC and AL02 board support

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@...0000 {
>>> +			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?

Best regards,
Krzysztof