Re: [PATCH v2 0/9] platform/x86: int3472: Add handshake pin support

[Hans de Goede <hdegoede@redhat.com>]

Hi Andy,

Thank you for all the reviews.

On 2-Apr-25 11:02 PM, Andy Shevchenko wrote:
> On Wed, Apr 2, 2025 at 11:25 PM Hans de Goede <hdegoede@redhat.com> wrote:
>>
>> New Intel Meteor Lake based laptops with IPU6 cameras have a new type 0x12
>> pin defined in the INT3472 sensor companion device which describes
>> the sensor's GPIOs.
>>
>> This pin is primarily used on designs with a Lattice FPGA chip which is
>> capable of running the sensor independently of the main CPU for features
>> like presence detection. This pin needs to be driven high to make the FPGA
>> run the power-on sequence of the sensor. After driving the pin high
>> the FPGA "firmware" needs 25ms to comlpete the power-on sequence.
>>
>> This series implements support for this by modelling the handshake GPIO
>> as a GPIO driven 'dvdd' regulator with an enable-time of 25 ms, also see:
>>
>> https://lore.kernel.org/platform-driver-x86/59f672c3-6d87-4ec7-9b7f-f44fe2cce934@redhat.com/
>>
>> Patch   1   Is an unrelated cleanup which I had lying around
>> Patches 2-7 Prepare + Implement the handshake GPIO
>> Patch   8   Is a small patch adding some extra debugging to GPIO remapping
> 
> You meant patch 9 here, right?
> 
> Offtopic: I sent you a message asking about AtomISP patch queue
> status, but no answer. I understand that you are kinda very busy,
> still it seems we missed one cycle for the patches you already have in
> your queue. I haven't investigated where the bottle neck happened,
> though. Hence just asking what's the plan with them and other patches
> that are already in the mailing list (I have received at least two
> that I was Cc'ed on).

Yeah, I've been burried in work a bit, so this fall through the cracks.

I've some more bandwidth now and I have a mailfolder with all
the pending atomisp patches in there. I plan to start merging these
soon and to send out an atomisp pull-request for 6.15 well in time.

Regards,

Hans