From: Akashdeep Kaur <a-kaur@ti.com>
To: <praneeth@ti.com>, <nm@ti.com>, <vigneshr@ti.com>,
<kristo@kernel.org>, <robh@kernel.org>, <krzk+dt@kernel.org>,
<conor+dt@kernel.org>, <rafael@kernel.org>,
<viresh.kumar@linaro.org>, <linux-arm-kernel@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-pm@vger.kernel.org>, <d-gole@ti.com>
Cc: <vishalm@ti.com>, <sebin.francis@ti.com>, <k-willis@ti.com>,
<a-kaur@ti.com>
Subject: [PATCH 0/5] cpufreq: ti: Fix probe ordering and add device link support for K3 SoCs
Date: Mon, 30 Mar 2026 17:31:00 +0530 [thread overview]
Message-ID: <20260330120105.2985200-1-a-kaur@ti.com> (raw)
For K3 SoCs, ti-cpufreq depends on k3-socinfo to provide SoC revision
information via soc_device_match(). If ti-cpufreq probes before
k3-socinfo, soc_device_match() returns NULL, causing incorrect
revision detection and OPP table initialization failures.
Add EPROBE_DEFER handling in ti-cpufreq when soc_device_match() fails
for K3 SoCs, ensuring k3-socinfo probes first.
Add device link support via a new DT property "ti,soc-info" in CPU
OPP tables. Device links prevent unbinding k3-socinfo while
ti-cpufreq is using it.
EPROBE_DEFER handles first-boot probe ordering, while device links
provide runtime dependency management.
For backward compatibility, the DT property is optional.
Signed-off-by: Akashdeep Kaur <a-kaur@ti.com>
---
Akashdeep Kaur (5):
cpufreq: ti: Add EPROBE_DEFER for K3 SoCs
arm64: dts: ti: k3-am625: Add ti,soc-info to OPP table
arm64: dts: ti: k3-am62a7: Add ti,soc-info to OPP table
arm64: dts: ti: k3-am62p5: Add ti,soc-info to OPP table
cpufreq: ti: Add device link to k3-socinfo
arch/arm64/boot/dts/ti/k3-am625.dtsi | 1 +
arch/arm64/boot/dts/ti/k3-am62a7.dtsi | 1 +
arch/arm64/boot/dts/ti/k3-am62p5.dtsi | 1 +
drivers/cpufreq/ti-cpufreq.c | 57 +++++++++++++++++++++++++++
4 files changed, 60 insertions(+)
--
2.34.1
next reply other threads:[~2026-03-30 12:01 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-30 12:01 Akashdeep Kaur [this message]
2026-03-30 12:01 ` [PATCH 1/5] cpufreq: ti: Add EPROBE_DEFER for K3 SoCs Akashdeep Kaur
2026-03-30 12:01 ` [PATCH 2/5] arm64: dts: ti: k3-am625: Add ti,soc-info to OPP table Akashdeep Kaur
2026-03-30 12:01 ` [PATCH 3/5] arm64: dts: ti: k3-am62a7: " Akashdeep Kaur
2026-03-30 12:01 ` [PATCH 4/5] arm64: dts: ti: k3-am62p5: " Akashdeep Kaur
2026-03-30 12:01 ` [PATCH 5/5] cpufreq: ti: Add device link to k3-socinfo Akashdeep Kaur
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