[PATCH AUTOSEL 5.15 17/82] arm64: dts: rockchip: add Coresight debug range for RK3399
briannorris at chromium.org
Tue Nov 9 15:25:39 PST 2021
On Tue, Nov 9, 2021 at 2:17 PM Sasha Levin <sashal at kernel.org> wrote:
> From: Brian Norris <briannorris at chromium.org>
> [ Upstream commit 75dccea503b8e176ad044175e891d7bb291b6ba0 ]
> Per Documentation/devicetree/bindings/arm/coresight-cpu-debug.txt.
> This IP block can be used for sampling the PC of any given CPU, which is
> useful in certain panic scenarios where you can't get the CPU to stop
> cleanly (e.g., hard lockup).
I don't understand why this is being backported to -stable. First of
all, it won't work because it's missing dependencies (specifically,
around the RK3399 clock driver). But even if it did, I don't see how
this is a candidate for -stable.
Methinks the AI has gone too far again.
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