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Message-ID: <680c5b9f-e2c7-926d-7d10-4ce2cd091282@cogentembedded.com>
Date: Mon, 3 Dec 2018 11:59:55 +0300
From: Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To: Chen Yu <chenyu56@...wei.com>, linux-usb@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: wangbinghui@...ilicon.com, suzhuangluan@...ilicon.com,
kongfei@...ilicon.com,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
John Stultz <john.stultz@...aro.org>
Subject: Re: [PATCH v1 01/12] dt-bindings: usb: add support for dwc3
controller on HiSilicon SoCs
On 03.12.2018 11:51, Chen Yu wrote:
>>> This patch adds binding descriptions to support the dwc3 controller
>>> on HiSilicon SoCs and boards like the HiKey960.
>>>
>>> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
>>> Cc: Rob Herring <robh+dt@...nel.org>
>>> Cc: Mark Rutland <mark.rutland@....com>
>>> Cc: John Stultz <john.stultz@...aro.org>
>>> Signed-off-by: Yu Chen <chenyu56@...wei.com>
>>> ---
>>> .../devicetree/bindings/usb/dwc3-hisi.txt | 67 ++++++++++++++++++++++
>>> 1 file changed, 67 insertions(+)
>>> create mode 100644 Documentation/devicetree/bindings/usb/dwc3-hisi.txt
>>>
>>> diff --git a/Documentation/devicetree/bindings/usb/dwc3-hisi.txt b/Documentation/devicetree/bindings/usb/dwc3-hisi.txt
>>> new file mode 100644
>>> index 000000000000..d32d2299a0a1
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/usb/dwc3-hisi.txt
>>> @@ -0,0 +1,67 @@
>>> +HiSilicon DWC3 USB SoC controller
>>> +
>>> +This file documents the parameters for the dwc3-hisi driver.
>>> +
>>> +Required properties:
>>> +- compatible: should be "hisilicon,hi3660-dwc3"
>>> +- clocks: A list of phandle + clock-specifier pairs for the
>>> + clocks listed in clock-names
>>> +- clock-names: Specify clock names
>>> +- resets: list of phandle and reset specifier pairs.
>>> +
>>> +Sub-nodes:
>>> +The dwc3 core should be added as subnode to HiSilicon DWC3 as shown in the
>>> +example below. The DT binding details of dwc3 can be found in:
>>> +Documentation/devicetree/bindings/usb/dwc3.txt
>>> +
>>> +Example:
>>> + usb3: hisi_dwc3 {
>>> + compatible = "hisilicon,hi3660-dwc3";
>>> + #address-cells = <2>;
>>> + #size-cells = <2>;
>>> + ranges;
>>> +
>>> + clocks = <&crg_ctrl HI3660_CLK_ABB_USB>,
>>> + <&crg_ctrl HI3660_ACLK_GATE_USB3OTG>;
>>> + clock-names = "clk_usb3phy_ref", "aclk_usb3otg";
>>> + assigned-clocks = <&crg_ctrl HI3660_ACLK_GATE_USB3OTG>;
>>> + assigned-clock-rates = <229000000>;
>>> + resets = <&crg_rst 0x90 8>,
>>> + <&crg_rst 0x90 7>,
>>> + <&crg_rst 0x90 6>,
>>> + <&crg_rst 0x90 5>;
>>> +
>>> + dwc3: dwc3@...00000 {
>>
>> According to the DT spec, the node names should be generic, not chip specific, i.e. usb@...00000 in this case.
>>
>
> Do you mean it should be usb@...00000: dwc3@...00000 ?
dwc3: usb@...00000
"dwc3:" is a label, not name.
> Thanks!
>
>> [...]
MBR, Sergei
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