linux-kernel - Re: [PATCH v3 2/4] arm64: dts: qcom: sm6125: Add UFS nodes

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Message-ID: <d387f52b-5c3e-9e3f-c5b9-4201a622abaf@linaro.org>
Date:   Thu, 15 Dec 2022 19:34:59 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Lux Aliaga <they@...t.lgbt>, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 2/4] arm64: dts: qcom: sm6125: Add UFS nodes



On 15.12.2022 19:33, Lux Aliaga wrote:
> 
> On 15/12/2022 15:28, Konrad Dybcio wrote:
>> On 15.12.2022 19:24, Lux Aliaga wrote:
>>> Adds a UFS host controller node and its corresponding PHY to
>>> the sm6125 platform.
>>>
>>> Signed-off-by: Lux Aliaga <they@...t.lgbt>
>>> ---
>>>   arch/arm64/boot/dts/qcom/sm6125.dtsi | 67 ++++++++++++++++++++++++++++
>>>   1 file changed, 67 insertions(+)
>>>
>>> diff --git a/arch/arm64/boot/dts/qcom/sm6125.dtsi b/arch/arm64/boot/dts/qcom/sm6125.dtsi
>>> index 7e25a4f85594..22c945d5fc7a 100644
>>> --- a/arch/arm64/boot/dts/qcom/sm6125.dtsi
>>> +++ b/arch/arm64/boot/dts/qcom/sm6125.dtsi
>>> @@ -508,6 +508,73 @@ sdhc_2: mmc@...4000 {
>>>               status = "disabled";
>>>           };
>>>   +        ufs_mem_hc: ufs@...4000 {
>>> +            compatible = "qcom,sm6125-ufshc", "qcom,ufshc", "jedec,ufs-2.0";
>>> +            reg = <0x04804000 0x3000>, <0x04810000 0x8000>;
>>> +            reg-names = "std", "ice";
>>> +            interrupts = <GIC_SPI 356 IRQ_TYPE_LEVEL_HIGH>;
>>> +            phys = <&ufs_mem_phy_lanes>;
>>> +            phy-names = "ufsphy";
>>> +            lanes-per-direction = <1>;
>>> +            #reset-cells = <1>;
>>> +            resets = <&gcc GCC_UFS_PHY_BCR>;
>>> +            reset-names = "rst";
>>> +
>>> +            clock-names = "core_clk",
>>> +                      "bus_aggr_clk",
>>> +                      "iface_clk",
>>> +                      "core_clk_unipro",
>>> +                      "ref_clk",
>>> +                      "tx_lane0_sync_clk",
>>> +                      "rx_lane0_sync_clk",
>>> +                      "ice_core_clk";
>>> +            clocks = <&gcc GCC_UFS_PHY_AXI_CLK>,
>>> +                 <&gcc GCC_SYS_NOC_UFS_PHY_AXI_CLK>,
>>> +                 <&gcc GCC_UFS_PHY_AHB_CLK>,
>>> +                 <&gcc GCC_UFS_PHY_UNIPRO_CORE_CLK>,
>>> +                 <&rpmcc RPM_SMD_XO_CLK_SRC>,
>>> +                 <&gcc GCC_UFS_PHY_TX_SYMBOL_0_CLK>,
>>> +                 <&gcc GCC_UFS_PHY_RX_SYMBOL_0_CLK>,
>>> +                 <&gcc GCC_UFS_PHY_ICE_CORE_CLK>;
>>> +            freq-table-hz = <50000000 240000000>,
>>> +                    <0 0>,
>>> +                    <0 0>,
>>> +                    <37500000 150000000>,
>>> +                    <0 0>,
>>> +                    <0 0>,
>>> +                    <0 0>,
>>> +                    <75000000 300000000>;
>>> +
>>> +            non-removable;
>>> +            status = "disabled";
>>> +        };
>>> +
>>> +        ufs_mem_phy: phy@...7000 {
>>> +            compatible = "qcom,sm6115-qmp-ufs-phy";
>>> +            reg = <0x04807000 0x1c4>;
>>> +
>>> +            power-domains = <&gcc UFS_PHY_GDSC>;
>>> +
>>> +            clock-names = "ref", "ref_aux";
>>> +            clocks = <&gcc GCC_UFS_MEM_CLKREF_CLK>,
>>> +                     <&gcc GCC_UFS_PHY_PHY_AUX_CLK>;
>>> +
>>> +            resets = <&ufs_mem_hc 0>;
>>> +            reset-names = "ufsphy";
>>> +            status = "disabled";
>>> +
>>> +            ufs_mem_phy_lanes: lanes@...7400 {
>>> +                reg = <0x4807400 0x098>,
>>> +                      <0x4807600 0x130>,
>>> +                      <0x4807c00 0x16c>;
>>> +                #phy-cells = <0>;
>>> +            };
>>> +
>>> +            #address-cells = <1>;
>>> +            #size-cells = <1>;
>>> +            ranges;
>> That won't compile. Properties must precede subnodes.
>>
>> Konrad
> Wait, so should I move it above the status property?
Status should be the last *property*.

If I'm not mistaken, this will not even compile as-is..

Konrad
>