linux-kernel - Re: [PATCH v3 1/5] arm64: dts: qcom: msm8998: Add UFS nodes

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Date:   Wed, 6 Feb 2019 11:58:11 +0100
From:   Marc Gonzalez <marc.w.gonzalez@...e.fr>
To:     MSM <linux-arm-msm@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Can Guo <cang@...eaurora.org>,
        Vivek Gautam <vivek.gautam@...eaurora.org>,
        Dov Levenglick <dovl@...eaurora.org>
Cc:     Jeffrey Hugo <jhugo@...eaurora.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Andy Gross <andy.gross@...aro.org>,
        David Brown <david.brown@...aro.org>,
        Evan Green <evgreen@...omium.org>,
        Douglas Anderson <dianders@...omium.org>
Subject: Re: [PATCH v3 1/5] arm64: dts: qcom: msm8998: Add UFS nodes

On 04/02/2019 18:36, Marc Gonzalez wrote:

> diff --git a/arch/arm64/boot/dts/qcom/msm8998.dtsi b/arch/arm64/boot/dts/qcom/msm8998.dtsi
> index 6f4f4b79853b..831af20143da 100644
> --- a/arch/arm64/boot/dts/qcom/msm8998.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8998.dtsi
> @@ -711,6 +711,69 @@
>  			redistributor-stride = <0x0 0x20000>;
>  			interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
>  		};
> +
> +		ufshc: ufshc@...4000 {
> +			compatible = "qcom,msm8998-ufshc", "qcom,ufshc",
> +				     "jedec,ufs-2.0";
> +			reg = <0x01da4000 0x2500>;
> +			interrupts = <GIC_SPI 265 IRQ_TYPE_LEVEL_HIGH>;
> +			phys = <&ufsphy_lanes>;
> +			phy-names = "ufsphy";
> +			lanes-per-direction = <2>;
> +			power-domains = <&gcc UFS_GDSC>;
> +
> +			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 =
> +				<&gcc GCC_UFS_AXI_CLK>,
> +				<&gcc GCC_AGGRE1_UFS_AXI_CLK>,
> +				<&gcc GCC_UFS_AHB_CLK>,
> +				<&gcc GCC_UFS_UNIPRO_CORE_CLK>,
> +				<&rpmcc RPM_SMD_LN_BB_CLK1>,
> +				<&gcc GCC_UFS_TX_SYMBOL_0_CLK>,
> +				<&gcc GCC_UFS_RX_SYMBOL_0_CLK>,
> +				<&gcc GCC_UFS_RX_SYMBOL_1_CLK>;
> +			freq-table-hz =
> +				<50000000 200000000>,
> +				<0 0>,
> +				<0 0>,
> +				<37500000 150000000>,
> +				<0 0>,
> +				<0 0>,
> +				<0 0>,
> +				<0 0>;
> +
> +			resets = <&gcc GCC_UFS_BCR>;
> +			reset-names = "rst";
> +		};

In https://patchwork.kernel.org/patch/10657699/
Bjorn mentioned that the resets prop are useless upstream.

Can, Vivek, Dov:

What is the status on the "scsi: ufs: Add core reset support" patch?
https://patchwork.kernel.org/patch/10652705/

Regards.