linux-kernel - Re: [PATCH v5] usb: typec: intel_pmc_mux: Expose IOM port status to debugfs

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Message-ID: <2da06c06-6617-bd02-f20a-a5ea7f9ae0b4@linux.intel.com>
Date:   Tue, 30 May 2023 15:06:15 +0530
From:   Rajat Khandelwal <rajat.khandelwal@...ux.intel.com>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     heikki.krogerus@...ux.intel.com, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5] usb: typec: intel_pmc_mux: Expose IOM port status to
 debugfs

Hi,

On 5/30/2023 2:57 PM, Greg KH wrote:
> On Tue, May 30, 2023 at 02:45:03PM +0530, Rajat Khandelwal wrote:
>> Hi,
>>
>> On 5/29/2023 7:48 PM, Greg KH wrote:
>>> On Wed, May 24, 2023 at 04:17:54PM +0530, Rajat Khandelwal wrote:
>>>> IOM status has a crucial role during debugging to check the
>>>> current state of the type-C port.
>>>> There are ways to fetch the status, but all those require the
>>>> IOM port status offset, which could change with platform.
>>>>
>>>> Make a debugfs directory for intel_pmc_mux and expose the status
>>>> under it per port basis.
>>>>
>>>> Signed-off-by: Rajat Khandelwal <rajat.khandelwal@...ux.intel.com>
>>>> Reviewed-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
>>> Does not apply to my tree :(
>> I have pushed the patch on top of the Linus's tree.
>> Had a quick check with the USB Linux tree and seems like its a lot
>> behind?
> What branch did you use?
>
> Please use the usb-next branch of
> git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git, which as
> of right now, is at 6.4-rc4 + a bunch of USB-specific patches.

I see. There is one commit additional in the usb-next tree:
ef0a3642b320 usb: typec: intel_pmc_mux: Convert to platform remove callback returning void

Anyways, do you want me to re-work the patch for the usb-next branch?

Thanks
Rajat

>
> thanks,
>
> greg k-h