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docs: Add device tree bindings for SBI PMU extension
authorAtish Patra <atish.patra@wdc.com>
Sat, 10 Jul 2021 16:18:02 +0000 (09:18 -0700)
committerAnup Patel <anup@brainfault.org>
Sun, 11 Jul 2021 04:40:16 +0000 (10:10 +0530)
commit3e8b31aca988955800d15329f1d4e48b4fbe7233
tree16564b06ebb3e9c1b828b036feb57b1b190475adtree | snapshot
parent17e23b678dac2e4579e714705cec137b351f7e9bcommit | diff
docs: Add device tree bindings for SBI PMU extension

SBI PMU extension requires a firmware to be aware of the event to
counter/mhpmevent mappings supported by the hardware. One approach
is to encode that information in the device tree.

Define a device tree binding that allows a hardware to describe
all the PMU mappings required in concise format.

Reviewed-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Atish Patra <atish.patra@wdc.com>
docs/pmu_support.md [new file with mode: 0644] blob
Domain: System / Kernel