linux-kernel - Re: [PATCH V1 2/2] arm64: dts: qcom: sc7280: Add UFS host controller and phy nodes

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Message-ID: <593fa9be-9f55-3649-e825-1dee31ac5c21@quicinc.com>
Date:   Tue, 26 Sep 2023 21:54:19 +0530
From:   Nitin Rawat <quic_nitirawa@...cinc.com>
To:     Manivannan Sadhasivam <mani@...nel.org>
CC:     <agross@...nel.org>, <andersson@...nel.org>,
        <konrad.dybcio@...aro.org>, <alim.akhtar@...sung.com>,
        <bvanassche@....org>, <robh+dt@...nel.org>, <avri.altman@....com>,
        <cros-qcom-dts-watchers@...omium.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <linux-arm-msm@...r.kernel.org>, <linux-scsi@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>
Subject: Re: [PATCH V1 2/2] arm64: dts: qcom: sc7280: Add UFS host controller
 and phy nodes



On 8/22/2023 12:38 PM, Manivannan Sadhasivam wrote:
> On Mon, Aug 21, 2023 at 03:19:37PM +0530, Nitin Rawat wrote:
>> Add UFS host controller and PHY nodes for sc7280.
>>
> 
> You should split this patch into 2. One for SoC and another for board.
Updated in Latest Patchset.

> 
>> Signed-off-by: Nitin Rawat <quic_nitirawa@...cinc.com>
>> ---
>>   arch/arm64/boot/dts/qcom/sc7280-idp.dtsi | 19 +++++++
>>   arch/arm64/boot/dts/qcom/sc7280.dtsi     | 64 ++++++++++++++++++++++++
>>   2 files changed, 83 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
>> index 2ff549f4dc7a..c60cdd511222 100644
>> --- a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
>> @@ -451,6 +451,25 @@
>>   	status = "okay";
>>   };
>>
>> +&ufs_mem_hc {
>> +	reset-gpios = <&tlmm 175 GPIO_ACTIVE_LOW>;
>> +	vcc-supply = <&vreg_l7b_2p9>;
>> +	vcc-max-microamp = <800000>;
>> +	vccq-supply = <&vreg_l9b_1p2>;
>> +	vccq-max-microamp = <900000>;
>> +	vccq2-supply = <&vreg_l9b_1p2>;
>> +	vccq2-max-microamp = <900000>;
>> +
>> +	status = "okay";
>> +};
>> +
>> +&ufs_mem_phy {
>> +	vdda-phy-supply = <&vreg_l10c_0p8>;
>> +	vdda-pll-supply = <&vreg_l6b_1p2>;
>> +
>> +	status = "okay";
>> +};
>> +
>>   &sdhc_1 {
>>   	status = "okay";
>>
>> diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
>> index 925428a5f6ae..d4a15d56b384 100644
>> --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
>> @@ -908,6 +908,70 @@
>>   			};
>>   		};
>>
>> +		ufs_mem_phy: phy@...7000 {
> 
> Please sort the nodes in ascending order.
Updated in Latest Patchset.

> 
>> +			compatible = "qcom,sc7280-qmp-ufs-phy";
>> +			reg = <0x0 0x01d87000 0x0 0xe00>;
>> +			clocks = <&rpmhcc RPMH_CXO_CLK>,
>> +				 <&gcc GCC_UFS_PHY_PHY_AUX_CLK>,
>> +				 <&gcc GCC_UFS_1_CLKREF_EN>;
>> +			clock-names = "ref", "ref_aux", "qref";
>> +
>> +			resets = <&ufs_mem_hc 0>;
>> +			reset-names = "ufsphy";
>> +
>> +			#clock-cells = <1>;
>> +			#phy-cells = <0>;
>> +
>> +			status = "disabled";
>> +
>> +		};
>> +
>> +		ufs_mem_hc: ufs@...4000 {
>> +			compatible = "qcom,sc7280-ufshc", "qcom,ufshc",
>> +				     "jedec,ufs-2.0";
>> +			reg = <0x0 0x01d84000 0x0 0x3000>;
>> +			interrupts = <GIC_SPI 265 IRQ_TYPE_LEVEL_HIGH>;
>> +			phys = <&ufs_mem_phy>;
>> +			phy-names = "ufsphy";
>> +			lanes-per-direction = <2>;
>> +			#reset-cells = <1>;
>> +			resets = <&gcc GCC_UFS_PHY_BCR>;
>> +			reset-names = "rst";
>> +
>> +			power-domains = <&gcc GCC_UFS_PHY_GDSC>;
>> +			required-opps = <&rpmhpd_opp_nom>;
>> +
>> +			iommus = <&apps_smmu 0x80 0x0>;
>> +			dma-coherent;
>> +
>> +			clock-names = "core_clk",
>> +				      "bus_aggr_clk",
>> +				      "iface_clk",
>> +				      "core_clk_unipro",
>> +				      "ref_clk",
>> +				      "tx_lane0_sync_clk",
>> +				      "rx_lane0_sync_clk",
>> +				      "rx_lane1_sync_clk";
> 
> "clocks" property should come first.
  DT binding shows clock-names first followed by clocks.
  Let me know if see still see concern, would update .

> 
> - Mani
> 
>> +			clocks = <&gcc GCC_UFS_PHY_AXI_CLK>,
>> +				 <&gcc GCC_AGGRE_UFS_PHY_AXI_CLK>,
>> +				 <&gcc GCC_UFS_PHY_AHB_CLK>,
>> +				 <&gcc GCC_UFS_PHY_UNIPRO_CORE_CLK>,
>> +				 <&rpmhcc RPMH_CXO_CLK>,
>> +				 <&gcc GCC_UFS_PHY_TX_SYMBOL_0_CLK>,
>> +				 <&gcc GCC_UFS_PHY_RX_SYMBOL_0_CLK>,
>> +				 <&gcc GCC_UFS_PHY_RX_SYMBOL_1_CLK>;
>> +			freq-table-hz =
>> +				<75000000 300000000>,
>> +				<0 0>,
>> +				<0 0>,
>> +				<75000000 300000000>,
>> +				<0 0>,
>> +				<0 0>,
>> +				<0 0>,
>> +				<0 0>;
>> +			status = "disabled";
>> +		};
>> +
>>   		sdhc_1: mmc@...000 {
>>   			compatible = "qcom,sc7280-sdhci", "qcom,sdhci-msm-v5";
>>   			pinctrl-names = "default", "sleep";
>> --
>> 2.17.1
>>
> 

Thanks,
Nitin