Re: [PATCH 3/3] PCI: qcom: Add D3cold support

[Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>]

On 1/28/26 12:40 PM, Krishna Chaitanya Chundru wrote:
> Add pme_turn_off() support and use DWC common suspend resume methods
> for device D3cold entry & exit. If the device is not kept in D3cold
> use existing methods like keeping icc votes, opp votes etc.. intact.
> 
> In qcom_pcie_deinit_2_7_0(), explicitly disable PCIe clocks and resets
> in the controller.
> 
> Remove suspended flag from qcom_pcie structure as it is no longer needed.
> 
> Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
> ---

[...]

> +		/*
> +		 * Only disable CPU-PCIe interconnect path if the suspend is non-S2RAM.
> +		 * Because on some platforms, DBI access can happen very late during the
> +		 * S2RAM and a non-active CPU-PCIe interconnect path may lead to NoC
> +		 * error.
> +		 */

I think someone internally once tracked down what that access was

Can we fix that instead?

Konrad