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;a=summary > > 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@xxxxxxxxxxxxxxx> 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@xxxxxxxxxxx> > 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@xxxxxxxxxxx> > Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> > Link: https://lore.kernel.org/r/20211004204955.21077-13-stephan@xxxxxxxxxxx > Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> > > ...
