linux-kernel - Re: [PATCH v2 5/6] arm64: dts: qcom: ipq5332: Add PCIe related nodes

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Message-ID: <6fe09de4-c94c-495d-92a4-aa902d2519ef@oss.qualcomm.com>
Date: Thu, 5 Dec 2024 17:55:27 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Varadarajan Narayanan <quic_varada@...cinc.com>, lpieralisi@...nel.org,
        kw@...ux.com, manivannan.sadhasivam@...aro.org, robh@...nel.org,
        bhelgaas@...gle.com, krzk+dt@...nel.org, conor+dt@...nel.org,
        vkoul@...nel.org, kishon@...nel.org, andersson@...nel.org,
        konradybcio@...nel.org, p.zabel@...gutronix.de,
        quic_nsekar@...cinc.com, dmitry.baryshkov@...aro.org,
        linux-arm-msm@...r.kernel.org, linux-pci@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-phy@...ts.infradead.org
Cc: Praveenkumar I <quic_ipkumar@...cinc.com>
Subject: Re: [PATCH v2 5/6] arm64: dts: qcom: ipq5332: Add PCIe related nodes

On 4.12.2024 12:33 PM, Varadarajan Narayanan wrote:
> From: Praveenkumar I <quic_ipkumar@...cinc.com>
> 
> Add phy and controller nodes for pcie0_x1 and pcie1_x2.
> 
> Signed-off-by: Praveenkumar I <quic_ipkumar@...cinc.com>
> Signed-off-by: Varadarajan Narayanan <quic_varada@...cinc.com>
> ---

[...]

> +		pcie0: pcie@...00000 {
> +			compatible = "qcom,pcie-ipq5332";
> +			reg =  <0x20000000 0xf1d>,
> +			       <0x20000F20 0xa8>,

Please use lowercase hex

> +			       <0x20001000 0x1000>,
> +			       <0x00080000 0x3000>,
> +			       <0x20100000 0x1000>;
> +			reg-names = "dbi", "elbi", "atu", "parf", "config";

Please also add the MHI region
> +			device_type = "pci";
> +			linux,pci-domain = <0>;
> +			bus-range = <0x00 0xff>;
> +			num-lanes = <1>;
> +			#address-cells = <3>;
> +			#size-cells = <2>;
> +
> +			ranges = <0x01000000 0 0x20200000 0x20200000 0 0x00100000>, /* I/O */
> +				 <0x02000000 0 0x20300000 0x20300000 0 0x0fd00000>; /* MEM */

Please drop these comments
> +
> +			interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
> +			interrupt-names = "msi0",
> +					  "msi1",
> +					  "msi2",
> +					  "msi3",
> +					  "msi4",
> +					  "msi5",
> +					  "msi6",
> +					  "msi7";
> +
> +			#interrupt-cells = <1>;
> +			interrupt-map-mask = <0 0 0 0x7>;
> +			interrupt-map = <0 0 0 1 &intc 0 0 35 IRQ_TYPE_LEVEL_HIGH>, /* int_a */
> +					<0 0 0 2 &intc 0 0 36 IRQ_TYPE_LEVEL_HIGH>, /* int_b */
> +					<0 0 0 3 &intc 0 0 37 IRQ_TYPE_LEVEL_HIGH>, /* int_c */
> +					<0 0 0 4 &intc 0 0 38 IRQ_TYPE_LEVEL_HIGH>; /* int_d */

And these too

> +
> +			clocks = <&gcc GCC_PCIE3X1_0_AXI_M_CLK>,
> +				 <&gcc GCC_PCIE3X1_0_AXI_S_CLK>,
> +				 <&gcc GCC_PCIE3X1_0_AXI_S_BRIDGE_CLK>,
> +				 <&gcc GCC_PCIE3X1_0_RCHG_CLK>,
> +				 <&gcc GCC_PCIE3X1_0_AHB_CLK>,
> +				 <&gcc GCC_PCIE3X1_0_AUX_CLK>;
> +
Stray newline

> +			clock-names = "axi_m",
> +				      "axi_s",
> +				      "axi_bridge",
> +				      "rchng",
> +				      "ahb",
> +				      "aux";
> +
> +			resets = <&gcc GCC_PCIE3X1_0_PIPE_ARES>,
> +				 <&gcc GCC_PCIE3X1_0_CORE_STICKY_ARES>,
> +				 <&gcc GCC_PCIE3X1_0_AXI_S_STICKY_ARES>,
> +				 <&gcc GCC_PCIE3X1_0_AXI_S_CLK_ARES>,
> +				 <&gcc GCC_PCIE3X1_0_AXI_M_STICKY_ARES>,
> +				 <&gcc GCC_PCIE3X1_0_AXI_M_CLK_ARES>,
> +				 <&gcc GCC_PCIE3X1_0_AUX_CLK_ARES>,
> +				 <&gcc GCC_PCIE3X1_0_AHB_CLK_ARES>;
> +
Ditto

> +			reset-names = "pipe",
> +				      "sticky",
> +				      "axi_s_sticky",
> +				      "axi_s",
> +				      "axi_m_sticky",
> +				      "axi_m",
> +				      "aux",
> +				      "ahb";
> +
> +			phys = <&pcie0_phy>;
> +			phy-names = "pciephy";
> +
> +			interconnects = <&gcc MASTER_SNOC_PCIE3_1_M &gcc SLAVE_SNOC_PCIE3_1_M>,
> +					<&gcc MASTER_ANOC_PCIE3_1_S &gcc SLAVE_ANOC_PCIE3_1_S>;
> +			interconnect-names = "pcie-mem", "cpu-pcie";
> +
> +			msi-map = <0x0 &v2m0 0x0 0xffd>;
> +			status = "disabled";
> +		};
> +
> +		pcie1: pcie@...00000 {

Same comments as pcie0

Konrad