linux-kernel - Re: [PATCH v1] phy: qcom-qmp: Add msm8998 PCIe QMP PHY support

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Message-ID: <136857e7-0fe1-6fc6-729e-2cbf6ea72386@ti.com>
Date:   Tue, 26 Mar 2019 13:15:51 +0530
From:   Kishon Vijay Abraham I <kishon@...com>
To:     Marc Gonzalez <marc.w.gonzalez@...e.fr>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Andy Gross <andy.gross@...aro.org>
CC:     Jeffrey Hugo <jhugo@...eaurora.org>,
        Evan Green <evgreen@...omium.org>,
        MSM <linux-arm-msm@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v1] phy: qcom-qmp: Add msm8998 PCIe QMP PHY support

Hi,

On 22/03/19 9:42 PM, Marc Gonzalez wrote:
> Copy init sequence from downstream:
> https://source.codeaurora.org/quic/la/kernel/msm-4.4/tree/arch/arm/boot/dts/qcom/msm8998-v2.dtsi?h=LE.UM.1.3.r3.25#n372

Can't we instead have reference to HW manual or datasheet?
> 
> Signed-off-by: Marc Gonzalez <marc.w.gonzalez@...e.fr>
> ---
>  .../devicetree/bindings/phy/qcom-qmp-phy.txt  |   5 +
>  drivers/phy/qualcomm/phy-qcom-qmp.c           | 110 ++++++++++++++++++
>  drivers/phy/qualcomm/phy-qcom-qmp.h           |  12 ++
>  3 files changed, 127 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt b/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt
> index 5d181fc3cc18..6000ae34b12b 100644
> --- a/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt
> +++ b/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt
> @@ -11,6 +11,7 @@ Required properties:
>  	       "qcom,msm8996-qmp-usb3-phy" for 14nm USB3 phy on msm8996,
>  	       "qcom,msm8998-qmp-usb3-phy" for USB3 QMP V3 phy on msm8998,
>  	       "qcom,msm8998-qmp-ufs-phy" for UFS QMP phy on msm8998,
> +	       "qcom,msm8998-qmp-pcie-phy" for PCIe QMP phy on msm8998,
>  	       "qcom,sdm845-qmp-usb3-phy" for USB3 QMP V3 phy on sdm845,
>  	       "qcom,sdm845-qmp-usb3-uni-phy" for USB3 QMP V3 UNI phy on sdm845,
>  	       "qcom,sdm845-qmp-ufs-phy" for UFS QMP phy on sdm845.
> @@ -48,6 +49,8 @@ Required properties:
>  			"aux", "cfg_ahb", "ref".
>  		For "qcom,msm8998-qmp-ufs-phy" must contain:
>  			"ref", "ref_aux".
> +		For "qcom,msm8998-qmp-pcie-phy" must contain:
> +			"aux", "cfg_ahb", "ref".
>  		For "qcom,sdm845-qmp-usb3-phy" must contain:
>  			"aux", "cfg_ahb", "ref", "com_aux".
>  		For "qcom,sdm845-qmp-usb3-uni-phy" must contain:
> @@ -70,6 +73,8 @@ Required properties:
>  		For "qcom,msm8998-qmp-usb3-phy" must contain
>  			"phy", "common".
>  		For "qcom,msm8998-qmp-ufs-phy": no resets are listed.
> +		For "qcom,msm8998-qmp-pcie-phy" must contain:
> +			"phy", "common", "cfg".
>  		For "qcom,sdm845-qmp-usb3-phy" must contain:
>  			"phy", "common".
>  		For "qcom,sdm845-qmp-usb3-uni-phy" must contain:

Please send the dt binding in a separate patch.

Thanks
Kishon