linux-kernel - Re: [PATCH 0/6] arm64: dts: qcom: smmu/USB nodes and HDK855/HDK865 dts

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Date:   Thu, 4 Jun 2020 10:06:19 -0400
From:   Jonathan Marek <jonathan@...ek.ca>
To:     Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>
Subject: Re: [PATCH 0/6] arm64: dts: qcom: smmu/USB nodes and HDK855/HDK865
 dts

On 6/4/20 9:52 AM, Manivannan Sadhasivam wrote:
> Hi,
> 
> On Sat, May 23, 2020 at 10:38:06PM -0400, Jonathan Marek wrote:
>> Add dts nodes for apps_smmu and USB for both sm8150 and sm8250.
>>
> 
> I've tested this series on an SM8250 based board and able to get Type C (USB0)
> working. There are also couple of Type A ports (USB1) on that board behind a
> USB hub. It is probing fine but I don't see any activity while connecting a
> USB device. Will continue to debug and once I get them working, I'll add my
> Tested-by tag.
> 

HDK865 also has a couple Type A ports, I am using them with devices 
already plugged in during boot and I haven't hit a problem like that, 
but I think I've seen the same issue when hotplugging. IIRC the behavior 
was a bit weird, like plugging a device in the Type A port (USB1) 
nothing would happen, but unplugging/replugging the type C port (USB0) 
would cause the Type A port device to start working..

Have you tried with the devices already plugged in before booting?

> Thanks,
> Mani
> 
>> Also add initial dts files for HDK855 and HDK865, based on mtp dts, with a
>> few changes. Notably, the HDK865 dts has regulator config changed a bit based
>> on downstream (I think sm8250-mtp.dts is wrong and copied too much from sm8150).
>>
>> Jonathan Marek (6):
>>    arm64: dts: qcom: sm8150: add apps_smmu node
>>    arm64: dts: qcom: sm8250: add apps_smmu node
>>    arm64: dts: qcom: sm8150: Add secondary USB and PHY nodes
>>    arm64: dts: qcom: sm8250: Add USB and PHY device nodes
>>    arm64: dts: qcom: add sm8150 hdk dts
>>    arm64: dts: qcom: add sm8250 hdk dts
>>
>>   arch/arm64/boot/dts/qcom/Makefile       |   2 +
>>   arch/arm64/boot/dts/qcom/sm8150-hdk.dts | 461 ++++++++++++++++++++++++
>>   arch/arm64/boot/dts/qcom/sm8150.dtsi    | 180 +++++++++
>>   arch/arm64/boot/dts/qcom/sm8250-hdk.dts | 454 +++++++++++++++++++++++
>>   arch/arm64/boot/dts/qcom/sm8250.dtsi    | 287 +++++++++++++++
>>   5 files changed, 1384 insertions(+)
>>   create mode 100644 arch/arm64/boot/dts/qcom/sm8150-hdk.dts
>>   create mode 100644 arch/arm64/boot/dts/qcom/sm8250-hdk.dts
>>
>> -- 
>> 2.26.1
>>