Re: [PATCH v7 0/3] PCI: Add support for PCIe WAKE# interrupt

Krishna Chaitanya Chundru
2026-03-13T07:03:43Z

On 2/18/2026 3:31 PM, Bartosz Golaszewski wrote:
> On Wed, Feb 18, 2026 at 9:12 AM Krishna Chaitanya Chundru
> <krishna.chundru@oss.qualcomm.com> wrote:
>> PCIe WAKE# interrupt is needed for bringing back PCIe device state from
>> D3cold to D0.
>>
>> This is pending from long time, there was two attempts done previously to
>> add WAKE# support[1], [2]. Those series tried to add support for legacy
>> interrupts along with WAKE#. Legacy interrupts are already available in
>> the latest kernel and we can ignore them. For the wake IRQ the series is
>> trying to use interrupts property define in the device tree.
>>
>> This series is using gpio property instead of interrupts, from
>> gpio desc driver will allocate the dedicate IRQ.
>>
>> WAKE# is added in dts schema and merged based on this patch.
>> https://lore.kernel.org/all/20250515090517.3506772-1-krishna.chundru@oss.qualcomm.com/
>>
>> [1]: https://lore.kernel.org/all/b2b91240-95fe-145d-502c-d52225497a34@nvidia.com/T/
>> [2]: https://lore.kernel.org/all/20171226023646.17722-1-jeffy.chen@rock-chips.com/
>>
>> Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
>> ---
> This spans three subsystems, how do you want to get it upstream?
Hi Bartosz,
we can take these patches through pci branch, if all maintainers give us
the ack.

I will mention this info in the next series cover letter.

- Krishna Chaitanya.
>
> Bartosz