linux-kernel - Re: [PATCH v8 4/4] arm64: boot: dts: qcom: pm8150b: Add DTS node for PMIC VBUS booster

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Message-ID: <fb81083e-7672-d199-689f-ede89228b485@codeaurora.org>
Date:   Thu, 3 Sep 2020 14:50:43 -0700
From:   Wesley Cheng <wcheng@...eaurora.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     Sergei Shtylyov <sergei.shtylyov@...il.com>, sboyd@...nel.org,
        heikki.krogerus@...ux.intel.com, agross@...nel.org,
        robh+dt@...nel.org, gregkh@...uxfoundation.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org
Subject: Re: [PATCH v8 4/4] arm64: boot: dts: qcom: pm8150b: Add DTS node for
 PMIC VBUS booster



On 8/30/2020 10:52 AM, Bjorn Andersson wrote:
> On Thu 20 Aug 07:47 UTC 2020, Wesley Cheng wrote:
> 
>>
>>
>> On 8/12/2020 2:34 AM, Sergei Shtylyov wrote:
>>> Hello!
>>>
>>> On 12.08.2020 10:19, Wesley Cheng wrote:
>>>
>>>> Add the required DTS node for the USB VBUS output regulator, which is
>>>> available on PM8150B.  This will provide the VBUS source to connected
>>>> peripherals.
>>>>
>>>> Signed-off-by: Wesley Cheng <wcheng@...eaurora.org>
>>>> ---
>>>>   arch/arm64/boot/dts/qcom/pm8150b.dtsi   | 6 ++++++
>>>>   arch/arm64/boot/dts/qcom/sm8150-mtp.dts | 4 ++++
>>>>   2 files changed, 10 insertions(+)
>>>>
>>>> diff --git a/arch/arm64/boot/dts/qcom/pm8150b.dtsi
>>>> b/arch/arm64/boot/dts/qcom/pm8150b.dtsi
>>>> index 053c659734a7..9e560c1ca30d 100644
>>>> --- a/arch/arm64/boot/dts/qcom/pm8150b.dtsi
>>>> +++ b/arch/arm64/boot/dts/qcom/pm8150b.dtsi
>>>> @@ -53,6 +53,12 @@ power-on@800 {
>>>>               status = "disabled";
>>>>           };
>>>>   +        pm8150b_vbus: dcdc@...0 {
>>>
>>>    s/dcdc/regulator/? What is "dcdc", anyway?
>>>    The device nodes must have the generic names, according to the DT spec.
>>>
>>
>> Hi Sergei,
>>
>> Thanks for the comment!
>>
>> DCDC is the label that we use for the DC to DC converter block, since
>> the VBUS booster will output 5V to the connected devices.  Would it make
>> more sense to have "dc-dc?"
>>
> 
> At this level it's just a regulator at 0x1100, so it should be
> "regulator@...0". If you would like a more useful name in the running
> system you should be able to use the "regulator-name" property.
> 
> Regards,
> Bjorn
> 

Hi Bjorn,

Thanks for the suggestion.  Sounds good, I will just use the "regulator"
name for now.

Thanks
Wesley

>> Thanks
>> Wesley
>>
>>>> +            compatible = "qcom,pm8150b-vbus-reg";
>>>> +            status = "disabled";
>>>> +            reg = <0x1100>;
>>>> +        };
>>>> +
>>>>           pm8150b_typec: typec@...0 {
>>>>               compatible = "qcom,pm8150b-usb-typec";
>>>>               status = "disabled";
>>> [...]
>>>
>>> MBR, Sergei
>>
>> -- 
>> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
>> a Linux Foundation Collaborative Project

-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project