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charset="utf-8" Defer probe when k3-socinfo hasn't registered the SoC device yet. Fixes incorrect revision detection when ti-cpufreq probes first. Signed-off-by: Akashdeep Kaur --- drivers/cpufreq/ti-cpufreq.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/cpufreq/ti-cpufreq.c b/drivers/cpufreq/ti-cpufreq.c index 3d1129aeed02..88f7912ef6a8 100644 --- a/drivers/cpufreq/ti-cpufreq.c +++ b/drivers/cpufreq/ti-cpufreq.c @@ -441,6 +441,15 @@ static int ti_cpufreq_get_rev(struct ti_cpufreq_data *= opp_data, */ *revision_value =3D 0x1; goto done; + } else if (opp_data->soc_data =3D=3D &am625_soc_data || + opp_data->soc_data =3D=3D &am62a7_soc_data || + opp_data->soc_data =3D=3D &am62l3_soc_data || + opp_data->soc_data =3D=3D &am62p5_soc_data) { + /* + * For K3 SoCs, if soc_device_match fails, socinfo hasn't + * probed yet. 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charset="utf-8" Add ti,soc-info property to allow OPP tables to reference the SoC info device (chipid) for establishing device link dependencies. This is used on K3 SoCs (AM625, AM62A7, AM62L3, AM62P5) to ensure proper probe ordering between ti-cpufreq and k3-socinfo drivers. The ti-cpufreq driver depends on k3-socinfo registering the SoC device for revision detection via soc_device_match(). The device link also prevents unbinding k3-socinfo while ti-cpufreq is using it, maintaining system stability. Signed-off-by: Akashdeep Kaur --- .../bindings/opp/operating-points-v2-ti-cpu.yaml | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/Documentation/devicetree/bindings/opp/operating-points-v2-ti-c= pu.yaml b/Documentation/devicetree/bindings/opp/operating-points-v2-ti-cpu.= yaml index 624d1f3f1382..f318494d5295 100644 --- a/Documentation/devicetree/bindings/opp/operating-points-v2-ti-cpu.yaml +++ b/Documentation/devicetree/bindings/opp/operating-points-v2-ti-cpu.yaml @@ -34,6 +34,16 @@ properties: points to syscon node representing the control module register space of the SoC. =20 + ti,soc-info: + $ref: /schemas/types.yaml#/definitions/phandle + description: | + Optional phandle to the SoC info device (chipid). Used on K3 SoCs + to establish device link dependencies ensuring proper probe ordering + (ti-cpufreq after k3-socinfo) and preventing unbinding of k3-socinfo + while the OPP table is in use. 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charset="utf-8" Create explicit device link from CPU device to k3-socinfo when the OPP table specifies ti,soc-info property. This prevents unbinding k3-socinfo while ti-cpufreq is using it for SoC revision detection. This complements the EPROBE_DEFER handling that ensures initial probe ordering. Signed-off-by: Akashdeep Kaur --- drivers/cpufreq/ti-cpufreq.c | 52 ++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) diff --git a/drivers/cpufreq/ti-cpufreq.c b/drivers/cpufreq/ti-cpufreq.c index 88f7912ef6a8..7bd45b367b36 100644 --- a/drivers/cpufreq/ti-cpufreq.c +++ b/drivers/cpufreq/ti-cpufreq.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include #include @@ -111,6 +112,7 @@ struct ti_cpufreq_data { struct device_node *opp_node; struct regmap *syscon; const struct ti_cpufreq_soc_data *soc_data; + struct device_link *soc_link; }; =20 static unsigned long amx3_efuse_xlate(struct ti_cpufreq_data *opp_data, @@ -542,6 +544,7 @@ static int ti_cpufreq_probe(struct platform_device *pde= v) return -ENOMEM; =20 opp_data->soc_data =3D match->data; + platform_set_drvdata(pdev, opp_data); =20 opp_data->cpu_dev =3D get_cpu_device(0); if (!opp_data->cpu_dev) { @@ -560,6 +563,42 @@ static int ti_cpufreq_probe(struct platform_device *pd= ev) if (ret) goto fail_put_node; =20 + /* Create device link to k3-socinfo if specified in DT */ + if (opp_data->soc_data =3D=3D &am625_soc_data || + opp_data->soc_data =3D=3D &am62a7_soc_data || + opp_data->soc_data =3D=3D &am62l3_soc_data || + opp_data->soc_data =3D=3D &am62p5_soc_data) { + struct device_node *socinfo_np; + + socinfo_np =3D of_parse_phandle(opp_data->opp_node, "ti,soc-info", 0); + if (socinfo_np) { + struct platform_device *socinfo_pdev; + struct device_link *link; + + socinfo_pdev =3D of_find_device_by_node(socinfo_np); + of_node_put(socinfo_np); + + if (!socinfo_pdev) { + ret =3D -EPROBE_DEFER; + goto fail_put_node; + } + + if (!socinfo_pdev->dev.driver) { + put_device(&socinfo_pdev->dev); + ret =3D -EPROBE_DEFER; + goto fail_put_node; + } + + link =3D device_link_add(opp_data->cpu_dev, + &socinfo_pdev->dev, + DL_FLAG_STATELESS); + if (link) + opp_data->soc_link =3D link; + + put_device(&socinfo_pdev->dev); + } + } + /* * OPPs determine whether or not they are supported based on * two metrics: @@ -600,6 +639,18 @@ static int ti_cpufreq_probe(struct platform_device *pd= ev) return ret; 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charset="utf-8" Link CPU OPP table to k3-socinfo driver for dependency tracking. Signed-off-by: Akashdeep Kaur --- arch/arm64/boot/dts/ti/k3-am625.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/ti/k3-am625.dtsi b/arch/arm64/boot/dts/ti/= k3-am625.dtsi index c249883a8a8d..b0020e667882 100644 --- a/arch/arm64/boot/dts/ti/k3-am625.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am625.dtsi @@ -109,6 +109,7 @@ a53_opp_table: opp-table { compatible =3D "operating-points-v2-ti-cpu"; opp-shared; syscon =3D <&opp_efuse_table>; + ti,soc-info =3D <&chipid>; =20 opp-200000000 { opp-hz =3D /bits/ 64 <200000000>; --=20 2.34.1 From nobody Wed Apr 1 22:13:36 2026 Received: from CH4PR04CU002.outbound.protection.outlook.com (mail-northcentralusazon11013005.outbound.protection.outlook.com [40.107.201.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B968B3D1714; Wed, 1 Apr 2026 10:54:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.201.5 ARC-Seal: i=2; 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charset="utf-8" Link CPU OPP table to k3-socinfo driver for dependency tracking. Signed-off-by: Akashdeep Kaur --- arch/arm64/boot/dts/ti/k3-am62a7.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/ti/k3-am62a7.dtsi b/arch/arm64/boot/dts/ti= /k3-am62a7.dtsi index b6e5eee99370..6d1459e9ea71 100644 --- a/arch/arm64/boot/dts/ti/k3-am62a7.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62a7.dtsi @@ -109,6 +109,7 @@ a53_opp_table: opp-table { compatible =3D "operating-points-v2-ti-cpu"; opp-shared; syscon =3D <&opp_efuse_table>; + ti,soc-info =3D <&chipid>; =20 opp-200000000 { opp-hz =3D /bits/ 64 <200000000>; --=20 2.34.1 From nobody Wed Apr 1 22:13:36 2026 Received: from CH1PR05CU001.outbound.protection.outlook.com (mail-northcentralusazon11010062.outbound.protection.outlook.com [52.101.193.62]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A03753F87F4; Wed, 1 Apr 2026 10:55:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.193.62 ARC-Seal: i=2; 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charset="utf-8" Link CPU OPP table to k3-socinfo driver for dependency tracking. Signed-off-by: Akashdeep Kaur --- arch/arm64/boot/dts/ti/k3-am62p5.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/ti/k3-am62p5.dtsi b/arch/arm64/boot/dts/ti= /k3-am62p5.dtsi index 8982a7b9f1a6..1a498c5eb3d1 100644 --- a/arch/arm64/boot/dts/ti/k3-am62p5.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62p5.dtsi @@ -108,6 +108,7 @@ a53_opp_table: opp-table { compatible =3D "operating-points-v2-ti-cpu"; opp-shared; syscon =3D <&opp_efuse_table>; + ti,soc-info =3D <&chipid>; =20 opp-200000000 { opp-hz =3D /bits/ 64 <200000000>; --=20 2.34.1