Messages in this thread | | | Date | Fri, 12 Nov 2021 08:43:21 -0500 | From | Sasha Levin <> | Subject | Re: [PATCH AUTOSEL 5.15 73/82] arm64: dts: qcom: msm8916: Add CPU ACC and SAW/SPM |
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On Wed, Nov 10, 2021 at 09:40:16AM +0100, Stephan Gerhold wrote: >Hi Sasha, > >On Tue, Nov 09, 2021 at 05:16:31PM -0500, Sasha Levin wrote: >> From: Stephan Gerhold <stephan@gerhold.net> >> >> [ 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> >> > >This patch is not useful without other changes that landed in 5.16 >(in particular, the new device actually making use of these nodes). > >Can you drop this patch?
Yup, thanks!
-- Thanks, Sasha
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