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From:   Conor Dooley <conor@kernel.org>
To:     Atish Patra <atishp@rivosinc.com>
Cc:     conor@kernel.org, Conor Dooley <conor.dooley@microchip.com>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Andrew Jones <ajones@ventanamicro.com>,
        devicetree@vger.kernel.org, linux-riscv@lists.infradead.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH v1] dt-bindings: perf: riscv,pmu: fix property dependencies
Date:   Tue,  4 Apr 2023 19:03:22 +0100
Message-Id: <20230404-tractor-confusing-8852e552539a@spud>
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From: Conor Dooley <conor.dooley@microchip.com>

Seemingly I mis-implemented the dependencies here. The OpenSBI docs only
point out that the "riscv,event-to-mhpmcounters property is mandatory if
riscv,event-to-mhpmevent is present". It never claims that
riscv,event-to-mhpmcounters requires riscv,event-to-mhpmevent.

Drop the dependency of riscv,event-to-mhpmcounters on
riscv,event-to-mhpmevent.

Fixes: 7e38085d9c59 ("dt-bindings: riscv: add SBI PMU event mappings")
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
---

Atish, I'm not 100% on this one but I noticed it while doing dt-validate
on a dump of the qemu virt machine which doesn't use the
event-to-mhpmevent property.

CC: Rob Herring <robh+dt@kernel.org>
CC: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
CC: Paul Walmsley <paul.walmsley@sifive.com>
CC: Palmer Dabbelt <palmer@dabbelt.com>
CC: Atish Patra <atishp@rivosinc.com>
CC: Andrew Jones <ajones@ventanamicro.com>
CC: devicetree@vger.kernel.org
CC: linux-riscv@lists.infradead.org
CC: linux-kernel@vger.kernel.org
---
 Documentation/devicetree/bindings/perf/riscv,pmu.yaml | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/perf/riscv,pmu.yaml b/Documentation/devicetree/bindings/perf/riscv,pmu.yaml
index a55a4d047d3f..c8448de2f2a0 100644
--- a/Documentation/devicetree/bindings/perf/riscv,pmu.yaml
+++ b/Documentation/devicetree/bindings/perf/riscv,pmu.yaml
@@ -91,7 +91,6 @@ properties:
 
 dependencies:
   "riscv,event-to-mhpmevent": [ "riscv,event-to-mhpmcounters" ]
-  "riscv,event-to-mhpmcounters": [ "riscv,event-to-mhpmevent" ]
 
 required:
   - compatible
-- 
2.39.2