linux-kernel - [PATCH 0/2] Support clock domains without a PMU instance

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Message-ID: <20260126033029.7923-1-baisheng.gao@unisoc.com>
Date: Mon, 26 Jan 2026 11:30:27 +0800
From: Baisheng Gao <baisheng.gao@...soc.com>
To: Robin Murphy <robin.murphy@....com>, Will Deacon <will@...nel.org>,
        Mark
 Rutland <mark.rutland@....com>, Rob Herring <robh@...nel.org>,
        Krzysztof
 Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>
CC: <cixi.geng@...ux.dev>, <hao_hao.wang@...soc.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-perf-users@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>
Subject: [PATCH 0/2] Support clock domains without a PMU instance

In a system, it is possible that there isn't a PMU instance in some
clock domains. The original driver will crash because of the pmusela
pointer being NULL in this condition. This series fix it.

Baisheng Gao (2):
  perf/arm-ni: Don't crash in probing clock domains without a PMU
    instance
  dt-bindings/perf: Drop irqs for clock domains without a PMU instance

 Documentation/devicetree/bindings/perf/arm,ni.yaml | 3 ++-
 drivers/perf/arm-ni.c                              | 8 +++++++-
 2 files changed, 9 insertions(+), 2 deletions(-)

Signed-off-by: Baisheng Gao <baisheng.gao@...soc.com>
-- 
2.34.1