Re: [PATCH] usb: typec: mux: Fix typec_switch_match()

[Marek Vasut <marex@nabladev.com>]

On 8/18/26 7:05 PM, Jens Glathe wrote:
> Hi Marek,
> 
> On 8/18/26 18:56, Marek Vasut wrote:
>> Hello Sebastian,
> [...]
>> Could you revert f576c75f95a5 ("Revert "usb: typec: mux: avoid 
>> duplicated mux switches"") and apply the following patch (equivalent 
>> to this patch, applies to mux instead of switch) and see if that fixes 
>> the T14s for you too then ? If yes, than, I think this might be the 
>> proper fix rather than the revert:
>>
>> diff --git a/drivers/usb/typec/mux.c b/drivers/usb/typec/mux.c
>> index 4a4297f15aad3..afa6fc1813978 100644
>> --- a/drivers/usb/typec/mux.c
>> +++ b/drivers/usb/typec/mux.c
>> @@ -294,6 +294,8 @@ static void *typec_mux_match(const struct 
>> fwnode_handle *fwnode,
>>
>>         dev = class_find_device(&typec_mux_class, NULL, fwnode,
>>                                 mux_fwnode_match);
>> +       if (!dev)
>> +               return ERR_PTR(-EPROBE_DEFER);
>>
>>         /* Skip duplicates */
>>         for (i = 0; i < TYPEC_MUX_MAX_DEVS; i++)
>> @@ -303,7 +305,7 @@ static void *typec_mux_match(const struct 
>> fwnode_handle *fwnode,
>>                 }
>>
>>
>> -       return dev ? to_typec_mux_dev(dev) : ERR_PTR(-EPROBE_DEFER);
>> +       return to_typec_mux_dev(dev);
>>  }
>>
>>  /**
> 
> I will test that one with the f576c75f95a5 reverted on the x1p and 
> sc8280xp boxes I have here, let's see. T14s G6 shouldn't be affected 
> either way.
> 
> with best regards
Thank you