linux-kernel - Re: [PATCH v10 6/6] usb: dwc3: qcom: Enable the interrupts during probe

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Date:   Tue, 15 Feb 2022 21:22:20 -0600
From:   Steev Klimaszewski <steev@...i.org>
To:     Sandeep Maheswaram <quic_c_sanm@...cinc.com>,
        Pavan Kondeti <quic_pkondeti@...cinc.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Felipe Balbi <balbi@...nel.org>,
        Stephen Boyd <swboyd@...omium.org>,
        Doug Anderson <dianders@...omium.org>,
        Matthias Kaehlcke <mka@...omium.org>,
        Mathias Nyman <mathias.nyman@...el.com>,
        linux-arm-msm@...r.kernel.org, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org, quic_ppratap@...cinc.com
Subject: Re: [PATCH v10 6/6] usb: dwc3: qcom: Enable the interrupts during
 probe

Hi Sandeep,

On 2/15/22 3:40 AM, Sandeep Maheswaram wrote:
> Hi Steev,
>
>>>>
>>> Can you try with IRQ_TYPE_EDGE_BOTH in your device tree and see if 
>>> you are getting the issue.
>>>
>>> Regards
>>>
>>> Sandeep
>>>
>> I just tested here, changing both of the IRQ_TYPE_LEVEL_HIGH in the 
>> yoga's dts to EDGE_BOTH and I still do not get a booting system.
>>
>> -- Steev
>>
> Please let us know what devices are connected to your setup and share 
> the device tree file you are using.
>
> Please share the failure logs also,
>
> Regards
>
> Sandeep
>
The setup is a Lenovo Yoga C630 (Windows on ARM laptop).  I do not have 
any sort of serial console access to the device, unfortunately.  Even 
when taking it apart, it seems to have some sort of 26pin debug adapter 
port that I've never seen before which you can see on the far right in 
this picture of the motherboard at 
https://i.ebayimg.com/images/g/a2EAAOSwwzZiCxPM/s-l1600.jpg

I do not have anything plugged in to the USB ports (sometimes the power 
adapter, but I have tried both on mains as well as off.)

I am using this diff


diff --git a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
index eab3f00c603235..c54042b9e21df2 100644
--- a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
+++ b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
@@ -370,7 +370,7 @@
  		reg = <0x15>;
  		hid-descr-addr = <0x1>;
  
-		interrupts-extended = <&tlmm 37 IRQ_TYPE_LEVEL_HIGH>;
+		interrupts-extended = <&tlmm 37 IRQ_TYPE_EDGE_BOTH>;
  	};
  
  	tsc2: hid@2c {
@@ -378,7 +378,7 @@
  		reg = <0x2c>;
  		hid-descr-addr = <0x20>;
  
-		interrupts-extended = <&tlmm 37 IRQ_TYPE_LEVEL_HIGH>;
+		interrupts-extended = <&tlmm 37 IRQ_TYPE_EDGE_BOTH>;
  	};
  };

Which I added as a commit to my kernel tree, and pushed so you can see 
the full dts here: 
https://github.com/steev/linux/blob/c8234e664491e35e3edcd211f3b78c04436402b0/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts

I am booting with the command line arguments of

clk_ignore_unused verbose module_blacklist=msm video=efifb 
earlyconsole=efifb

I can't provide a boot log, because I'm not actually getting anything.  
Booting a different kernel, and it doesn't appear that anything is 
logged at all.


-- steev