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

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Date:   Wed, 16 Feb 2022 03:51:38 -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 2/16/22 12:27 AM, Sandeep Maheswaram wrote:
> Hi Steev
>
> On 2/16/2022 8:52 AM, Steev Klimaszewski wrote:
>> 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.)
>>
>> 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
>>
> Can you try with below change
>
> diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi 
> b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> index 0d6286d..0a9c0f7 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
> @@ -3796,8 +3796,8 @@
>
>                         interrupts = <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>,
>                                      <GIC_SPI 486 IRQ_TYPE_LEVEL_HIGH>,
> -                                    <GIC_SPI 488 IRQ_TYPE_LEVEL_HIGH>,
> -                                    <GIC_SPI 489 IRQ_TYPE_LEVEL_HIGH>;
> +                                    <GIC_SPI 488 IRQ_TYPE_EDGE_BOTH>,
> +                                    <GIC_SPI 489 IRQ_TYPE_EDGE_BOTH>;
>                         interrupt-names = "hs_phy_irq", "ss_phy_irq",
>                                           "dm_hs_phy_irq", 
> "dp_hs_phy_irq";
>
> @@ -3844,8 +3844,8 @@
>
>                         interrupts = <GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>,
>                                      <GIC_SPI 487 IRQ_TYPE_LEVEL_HIGH>,
> -                                    <GIC_SPI 490 IRQ_TYPE_LEVEL_HIGH>,
> -                                    <GIC_SPI 491 IRQ_TYPE_LEVEL_HIGH>;
> +                                    <GIC_SPI 490 IRQ_TYPE_EDGE_BOTH>,
> +                                    <GIC_SPI 491 IRQ_TYPE_EDGE_BOTH>;
>                         interrupt-names = "hs_phy_irq", "ss_phy_irq",
>                                           "dm_hs_phy_irq", 
> "dp_hs_phy_irq";
>
> Regards
>
> Sandeep

That does allow it to boot, however.... it breaks USB.

[    2.013325] genirq: Setting trigger mode 3 for irq 35 failed 
(gic_set_type+0x0/0x1b0)
[    2.014063] dwc3-qcom a6f8800.usb: dp_hs_phy_irq failed: -22
[    2.014134] dwc3-qcom a6f8800.usb: failed to setup IRQs, err=-22
[    2.014351] dwc3-qcom: probe of a6f8800.usb failed with error -22
[    2.018496] genirq: Setting trigger mode 3 for irq 39 failed 
(gic_set_type+0x0/0x1b0)
[    2.019124] dwc3-qcom a8f8800.usb: dp_hs_phy_irq failed: -22
[    2.019193] dwc3-qcom a8f8800.usb: failed to setup IRQs, err=-22
[    2.019372] dwc3-qcom: probe of a8f8800.usb failed with error -22

steev@...itless:~$ lsusb
steev@...itless:~$


-- steev