linux-kernel - Re: [PATCH 02/11] dt-bindings: usb: Add NVIDIA Tegra XUSB host controller binding

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Message-ID: <69fdd3c5-7215-f34e-5b9e-5c18fdf6a0e2@nvidia.com>
Date:   Thu, 3 Nov 2022 10:24:15 +0000
From:   Wayne Chang <waynec@...dia.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>
CC:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Rob Herring <robh@...nel.org>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>,
        Thierry Reding <treding@...dia.com>,
        "heikki.krogerus@...ux.intel.com" <heikki.krogerus@...ux.intel.com>,
        Ajay Gupta <ajayg@...dia.com>, "kishon@...com" <kishon@...com>,
        "vkoul@...nel.org" <vkoul@...nel.org>,
        "p.zabel@...gutronix.de" <p.zabel@...gutronix.de>,
        "balbi@...nel.org" <balbi@...nel.org>,
        "mathias.nyman@...el.com" <mathias.nyman@...el.com>,
        Jui Chang Kuo <jckuo@...dia.com>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Sing-Han Chen <singhanc@...dia.com>,
        "linux-i2c@...r.kernel.org" <linux-i2c@...r.kernel.org>,
        "linux-phy@...ts.infradead.org" <linux-phy@...ts.infradead.org>,
        "linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>
Subject: Re: [PATCH 02/11] dt-bindings: usb: Add NVIDIA Tegra XUSB host
 controller binding



On 10/28/22 19:30, Thierry Reding wrote:
> On Fri, Oct 28, 2022 at 12:07:38PM +0100, Jon Hunter wrote:
>> On 28/10/2022 10:25, Jon Hunter wrote:
>>> On 28/10/2022 03:19, Krzysztof Kozlowski wrote:
>>>> On 25/10/2022 04:02, Wayne Chang wrote:
>>>>>>> +  power-domain-names:
>>>>>>> +    items:
>>>>>>> +      - const: xusb_host
>>>>>>> +      - const: xusb_ss
>>>>>> Drop 'xusb_'.
>>>>> The properties are constant and we use the name to get the power domain.
>>>>>
>>>>>      tegra->genpd_dev_host = dev_pm_domain_attach_by_name(dev,
>>>>> "xusb_host");
>>>>>
>>>>>      tegra->genpd_dev_ss = dev_pm_domain_attach_by_name(dev, "xusb_ss");
>>>>>
>>>>> we might not be able to drop the xusb_
>>>> These are new bindings, so why do say they are "constant"? New bindings
>>>> means you did not use them. If you used them before bindings... what can
>>>> we say? Don't?
>>> Not exactly. However, what we should do here is convert the legacy
>>> binding doc [0] and replace with this one. But yes we are stuck with the
>>> 'xusb_host' naming.
>>
>> Thierry already has a patch to do this [0]. So we should fix that up and
>> included in this series.
>>
>> Jon
>>
>> [0]https://lore.kernel.org/linux-tegra/20211209165339.614498-3-thierry.reding@gmail.com/
> I have a v2 with at least some of the comments addressed. I'll go
> through them again and send it out. If we can get that reviewed, it can
> be included in this series and the Tegra234 addition be applied on top.

Thanks for the help, Thierry. I'll update the binding after your change 
got updated.

> 
> Thierry

thanks,
Wayne.