Hi Sasha,

On Sun, Nov 21, 2021 at 06:04:14PM -0500, Sasha Levin wrote:

This is a note to let you know that I've just added the patch titled

arm64: dts: qcom: msm8916: Add CPU ACC and SAW/SPM

to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: arm64-dts-qcom-msm8916-add-cpu-acc-and-saw-spm.patch and it can be found in the queue-5.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

Did you forget to drop this patch? :)

You mentioned that you did [1] (since I replied that this patch is not useful without other changes in 5.16), but apparently not. ;)

Thanks, Stephan

[1]: https://lore.kernel.org/stable/YY5veYUpixJn9Q92@sashalap/

commit 4b41a4624fb79b1745e888594425ec592946fb80 Author: Stephan Gerhold stephan@gerhold.net Date: Mon Oct 4 22:49:53 2021 +0200

arm64: dts: qcom: msm8916: Add CPU ACC and SAW/SPM

[ Upstream commit a22f9a766e1dc61f8f6ee2edfe83d4d23d78e059 ] Add the device tree nodes necessary for SMP bring-up and cpuidle without PSCI on ARM32. The hardware is typically controlled by the PSCI implementation in the TrustZone firmware and is therefore marked as status = "reserved" by default (from the device tree specification): "Indicates that the device is operational, but should not be used. Typically this is used for devices that are controlled by another software component, such as platform firmware." Since this is part of the MSM8916 SoC it should be added to msm8916.dtsi but in practice these nodes should only get enabled via an extra include on ARM32. This is necessary for some devices with signed firmware which is missing both ARM64 and PSCI support and can therefore only boot ARM32 kernels. Signed-off-by: Stephan Gerhold stephan@gerhold.net Signed-off-by: Bjorn Andersson bjorn.andersson@linaro.org Link: https://lore.kernel.org/r/20211004204955.21077-13-stephan@gerhold.net Signed-off-by: Sasha Levin sashal@kernel.org

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