suspend-to-idle normally means linux ‘freeze’ mode. For this mode, nothing related to PSCI OSI support.

BR
Jacky Bai

From: Sudeep Holla via TF-A <tf-a@lists.trustedfirmware.org>
Sent: 2022年11月21日 18:38
To: Wing Li <wingers@google.com>
Cc: Dan Handley <Dan.Handley@arm.com>; Okash Khawaja <okash@google.com>; tf-a@lists.trustedfirmware.org; tf-a-tests@lists.trustedfirmware.org; Sudeep Holla <sudeep.holla@arm.com>
Subject: [TF-A] Re: PSCI OS-initiated mode

On Mon, Nov 21, 2022 at 2:51 AM Wing Li via TF-A <tf-a@lists.trustedfirmware.org> wrote:

Hi Dan and Varun,

Our motivation for adding OS-initiated mode is because it's required by the Linux PSCI CPUIdle driver to enable support for suspend-to-idle [1].

That is not correct. If anything is broken or not working, it needs to be fixed. Adding platform support for

OSI just to support suspend-to-idle is a completely wrong approach. Can you let me know what is not

working or how is it broken ?