linux-kernel - Re: [PATCH 3/6] ARM: dts: qcom: sdx65: Add support for PCIe PHY

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Date:   Mon, 6 Mar 2023 20:43:36 +0530
From:   Rohit Agarwal <quic_rohiagar@...cinc.com>
To:     Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        <agross@...nel.org>, <andersson@...nel.org>,
        <konrad.dybcio@...aro.org>, <lee@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <mani@...nel.org>,
        <lpieralisi@...nel.org>, <kw@...ux.com>, <bhelgaas@...gle.com>,
        <manivannan.sadhasivam@...aro.org>
CC:     <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-pci@...r.kernel.org>
Subject: Re: [PATCH 3/6] ARM: dts: qcom: sdx65: Add support for PCIe PHY


On 3/6/2023 2:11 PM, Dmitry Baryshkov wrote:
> On 06/03/2023 07:24, Rohit Agarwal wrote:
>> Add devicetree support for PCIe PHY used in SDX65 platform. This PHY is
>> used by the PCIe EP controller.
>>
>> Signed-off-by: Rohit Agarwal <quic_rohiagar@...cinc.com>
>> ---
>>   arch/arm/boot/dts/qcom-sdx65.dtsi | 32 
>> ++++++++++++++++++++++++++++++++
>>   1 file changed, 32 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/qcom-sdx65.dtsi 
>> b/arch/arm/boot/dts/qcom-sdx65.dtsi
>> index b073e0c..246290d 100644
>> --- a/arch/arm/boot/dts/qcom-sdx65.dtsi
>> +++ b/arch/arm/boot/dts/qcom-sdx65.dtsi
>> @@ -292,6 +292,38 @@
>>               status = "disabled";
>>           };
>>   +        pcie0_phy: phy@...7000 {
>> +            compatible = "qcom,sdx65-qmp-pcie-phy";
>> +            reg = <0x01c07000 0x1e4>;
>> +            #address-cells = <1>;
>> +            #size-cells = <1>;
>> +            ranges;
>> +            clocks = <&gcc GCC_PCIE_AUX_PHY_CLK_SRC>,
>> +                 <&gcc GCC_PCIE_CFG_AHB_CLK>,
>> +                 <&gcc GCC_PCIE_0_CLKREF_EN>,
>> +                 <&gcc GCC_PCIE_RCHNG_PHY_CLK>;
>> +            clock-names = "aux", "cfg_ahb", "ref", "refgen";
>> +
>> +            resets = <&gcc GCC_PCIE_PHY_BCR>;
>> +            reset-names = "phy";
>> +            assigned-clocks = <&gcc GCC_PCIE_RCHNG_PHY_CLK>;
>> +            assigned-clock-rates = <100000000>;
>> +            status = "disabled";
>> +
>> +            pcie0_lane: lanes@...6000 {
>
> Please use new style bindings found in qcom,sc8280xp-qmp-pcie-phy.yaml

Sure, Will update it the bindings and this.

Thanks,
Rohit.
>
>> +                reg = <0x01c06000 0xf0>, /* tx0 */
>> +                      <0x01c06200 0x2f0>, /* rx0 */
>> +                      <0x01c07200 0x1e8>, /* pcs */
>> +                      <0x01c06800 0xf0>, /* tx1 */
>> +                      <0x01c06a00 0x2f0>, /* rx1 */
>> +                      <0x01c07400 0xc00>; /* pcs_misc */
>> +                clocks = <&gcc GCC_PCIE_PIPE_CLK>;
>> +                clock-names = "pipe0";
>> +                #phy-cells = <0>;
>> +                clock-output-names = "pcie_pipe_clk";
>> +            };
>> +        };
>> +
>>           tcsr_mutex: hwlock@...0000 {
>>               compatible = "qcom,tcsr-mutex";
>>               reg = <0x01f40000 0x40000>;
>