[FSL P50x0] Keyboard and mouse don't work anymore after the devicetree updates for 5.19

[Christian Zigotzky]

> On 31. May 2022, at 15:46, Rob Herring <robh at kernel.org> wrote:
> 
> On Mon, May 30, 2022 at 12:26 AM Christian Zigotzky
> <chzigotzky at xenosoft.de> wrote:
>> 
>>> On 27 May 2022 at 04:23 pm, Rob Herring wrote:
>>> The issue is in drivers/usb/host/fsl-mph-dr-of.c which copies the
>>> resources to a child platform device. Can you try the following
>>> change:
>>> 
>>> diff --git a/drivers/usb/host/fsl-mph-dr-of.c b/drivers/usb/host/fsl-mph-dr-of.c
>>> index 44a7e58a26e3..47d9b7be60da 100644
>>> --- a/drivers/usb/host/fsl-mph-dr-of.c
>>> +++ b/drivers/usb/host/fsl-mph-dr-of.c
>>> @@ -80,8 +80,6 @@ static struct platform_device *fsl_usb2_device_register(
>>>                                         const char *name, int id)
>>>  {
>>>         struct platform_device *pdev;
>>> -       const struct resource *res = ofdev->resource;
>>> -       unsigned int num = ofdev->num_resources;
>>>         int retval;
>>> 
>>>         pdev = platform_device_alloc(name, id);
>>> @@ -106,11 +104,7 @@ static struct platform_device *fsl_usb2_device_register(
>>>         if (retval)
>>>                 goto error;
>>> 
>>> -       if (num) {
>>> -               retval = platform_device_add_resources(pdev, res, num);
>>> -               if (retval)
>>> -                       goto error;
>>> -       }
>>> +       pdev->dev.of_node = ofdev->dev.of_node;
>>> 
>>>         retval = platform_device_add(pdev);
>>>         if (retval)
>> Hello Rob,
>> 
>> Thanks a lot for your patch! Unfortunately, this leads to a boot loop.
>> Do you have another idea?
> 
> Do you have a dmesg log?

From the boot loop?

> 
> The other way to fix is creating a IRQ resource and adding it to the
> child device resources.

Good idea.
> 
> Rob