linux-kernel - Re: [PATCH v2 01/10] dt-bindings: phy: Add support for HiSilicon's hi3660 USB PHY

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Message-ID: <a944cd27-f7d5-eece-1ef5-c7dc5dbc311b@huawei.com>
Date:   Tue, 19 Feb 2019 09:50:49 +0800
From:   Chen Yu <chenyu56@...wei.com>
To:     Rob Herring <robh@...nel.org>
CC:     <liuyu712@...ilicon.com>, <linux-usb@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <john.stultz@...aro.org>, <suzhuangluan@...ilicon.com>,
        <kongfei@...ilicon.com>, <wanghu17@...ilicon.com>,
        <butao@...ilicon.com>, <chenyao11@...wei.com>,
        <fangshengzhou@...ilicon.com>, <lipengcheng8@...wei.com>,
        <songxiaowei@...ilicon.com>, <xuyiping@...ilicon.com>,
        <xuyoujun4@...wei.com>, <yudongbin@...ilicon.com>,
        <zangleigang@...ilicon.com>, Mark Rutland <mark.rutland@....com>,
        "Binghui Wang" <wangbinghui@...ilicon.com>
Subject: Re: [PATCH v2 01/10] dt-bindings: phy: Add support for HiSilicon's
 hi3660 USB PHY

Hi,

On 2019/2/19 4:18, Rob Herring wrote:
> On Mon, Feb 18, 2019 at 07:23:01PM +0800, Yu Chen wrote:
>> This patch adds binding documentation for supporting the hi3660 usb
>> phy on boards like the HiKey960.
>>
>> Cc: Rob Herring <robh+dt@...nel.org>
>> Cc: Mark Rutland <mark.rutland@....com>
>> Cc: John Stultz <john.stultz@...aro.org>
>> Cc: Binghui Wang <wangbinghui@...ilicon.com>
>> Signed-off-by: Yu Chen <chenyu56@...wei.com>
>> ---
>> v1:
>> * Fix some format error as suggested by Rob.
>> v2:
>> * Change hi3660 usb PHY to hi3660 USB PHY
>> ---
>> ---
>>  .../devicetree/bindings/phy/phy-hi3660-usb3.txt     | 21 +++++++++++++++++++++
>>  1 file changed, 21 insertions(+)
>>  create mode 100644 Documentation/devicetree/bindings/phy/phy-hi3660-usb3.txt
>>
>> diff --git a/Documentation/devicetree/bindings/phy/phy-hi3660-usb3.txt b/Documentation/devicetree/bindings/phy/phy-hi3660-usb3.txt
>> new file mode 100644
>> index 000000000000..f9a3d56cfdd2
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/phy/phy-hi3660-usb3.txt
>> @@ -0,0 +1,21 @@
>> +Hisilicon hi3660 USB PHY
>> +-----------------------
>> +
>> +Required properties:
>> +- compatible: should be "hisilicon,hi3660-usb-phy"
>> +- #phy-cells: must be 0
>> +- hisilicon,pericrg-syscon: phandle of syscon used to control phy.
>> +- hisilicon,pctrl-syscon: phandle of syscon used to control phy.
>> +- hisilicon,usb3-otg-bc-syscon: phandle of syscon used to control phy.
>> +- hisilicon,eye-diagram-param: parameter set for phy
>> +Refer to phy/phy-bindings.txt for the generic PHY binding properties
>> +
>> +Example:
>> +	usb-phy {
>> +		compatible = "hisilicon,hi3660-usb-phy";
>> +		#phy-cells = <0>;
>> +		hisilicon,pericrg-syscon = <&crg_ctrl>;
>> +		hisilicon,pctrl-syscon = <&pctrl>;
>> +		hisilicon,usb3-otg-bc-syscon = <&usb3_otg_bc>;
> 
> Are most of the registers within one of these blocks? If so, make this 
> node a child of that node.
I met a problem when I made this node a child of the syscon node,
the driver "phy-hi3660-usb3" was not probed.
Do you have any idea about how to make it probed when it is a child node?
> 
>> +		hisilicon,eye-diagram-param = <0x22466e4>;
>> +	};
>> -- 
>> 2.15.0-rc2
>>
> 
> .
> 

Thanks
Yu Chen