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

Bartosz Golaszewski
2026-02-18T10:01:38Z

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?

Bartosz