[PATCH 1/2] dt-bindings: arm-pmu: Add PMU compatible strings for Apple M2 cores

From: Janne Grunau
Date: Tue Feb 14 2023 - 05:38:12 EST


The PMUs on the Apple M2 cores avalanche and blizzard CPU are compatible
with M1 ones. As on M1 we don't know exactly what the counters count so
use a distinct compatible for each micro-architecture.
Apple's PMU counter description omits a counter for M2 so there
is some variation on the interpretation of the counters.

Signed-off-by: Janne Grunau <j@xxxxxxxxxx>
---
Documentation/devicetree/bindings/arm/pmu.yaml | 2 ++
1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/pmu.yaml b/Documentation/devicetree/bindings/arm/pmu.yaml
index dbb6f3dc5ae5..e14358bf0b9c 100644
--- a/Documentation/devicetree/bindings/arm/pmu.yaml
+++ b/Documentation/devicetree/bindings/arm/pmu.yaml
@@ -20,6 +20,8 @@ properties:
items:
- enum:
- apm,potenza-pmu
+ - apple,avalanche-pmu
+ - apple,blizzard-pmu
- apple,firestorm-pmu
- apple,icestorm-pmu
- arm,armv8-pmuv3 # Only for s/w models

--
2.39.1