Re: [PATCH v3 2/3] arm64: dts: qcom: qcs615: add UFS node

Konrad Dybcio
2024-12-05T21:21:43Z

On 22.11.2024 7:44 AM, Xin Liu wrote:
> From: Sayali Lokhande <quic_sayalil@quicinc.com>
>
> Add the UFS Host Controller node and its PHY for QCS615 SoC.
>
> Signed-off-by: Sayali Lokhande <quic_sayalil@quicinc.com>
> Co-developed-by: Xin Liu <quic_liuxin@quicinc.com>
> Signed-off-by: Xin Liu <quic_liuxin@quicinc.com>
> ---

[...]

> +
> + operating-points-v2 = <&ufs_opp_table>;
> + interconnects = <&aggre1_noc MASTER_UFS_MEM QCOM_ICC_TAG_ALWAYS
> + &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>,
> + <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ALWAYS
> + &config_noc SLAVE_UFS_MEM_CFG QCOM_ICC_TAG_ALWAYS>;

QCOM_ICC_TAG_ACTIVE_ONLY for the cpu path

> + interconnect-names = "ufs-ddr",
> + "cpu-ufs";
> +
> + power-domains = <&gcc UFS_PHY_GDSC>;
> + required-opps = <&rpmhpd_opp_nom>;

this contradicts the levels in the OPP table:

> +
> + iommus = <&apps_smmu 0x300 0x0>;
> + dma-coherent;
> +
> + lanes-per-direction = <1>;
> +
> + phys = <&ufs_mem_phy>;
> + phy-names = "ufsphy";
> +
> + #reset-cells = <1>;
> +
> + status = "disabled";
> +
> + ufs_opp_table: opp-table {
> + compatible = "operating-points-v2";
> +
> + opp-50000000 {
> + opp-hz = /bits/ 64 <50000000>,
> + /bits/ 64 <0>,
> + /bits/ 64 <0>,
> + /bits/ 64 <37500000>,
> + /bits/ 64 <75000000>,
> + /bits/ 64 <0>,
> + /bits/ 64 <0>,
> + /bits/ 64 <0>;
> + required-opps = <&rpmhpd_opp_low_svs>;
> + };
> +

Konrad