linux-kernel - [tip: irq/urgent] bus: simple-pm-bus: Probe the Layerscape SCFG node

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Message-ID: <176952838438.510.3277372599660230777.tip-bot2@tip-bot2>
Date: Tue, 27 Jan 2026 15:39:44 -0000
From: "tip-bot2 for Ioana Ciornei" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Ioana Ciornei <ioana.ciornei@....com>, Thomas Gleixner <tglx@...nel.org>,
 Geert Uytterhoeven <geert+renesas@...der.be>, x86@...nel.org,
 linux-kernel@...r.kernel.org, maz@...nel.org
Subject: [tip: irq/urgent] bus: simple-pm-bus: Probe the Layerscape SCFG node

The following commit has been merged into the irq/urgent branch of tip:

Commit-ID:     ba5c657141ea29261e893c46faff29a101f4496a
Gitweb:        https://git.kernel.org/tip/ba5c657141ea29261e893c46faff29a101f4496a
Author:        Ioana Ciornei <ioana.ciornei@....com>
AuthorDate:    Thu, 22 Jan 2026 15:40:34 +02:00
Committer:     Thomas Gleixner <tglx@...nel.org>
CommitterDate: Tue, 27 Jan 2026 16:33:32 +01:00

bus: simple-pm-bus: Probe the Layerscape SCFG node

Make the simple-pm-bus driver probe the Layerscape SCFG dt nodes and
populate platform_device structures from its child dt nodes.

This is now needed because its child interrupt-controller - ls-extirq -
is being handled as a platform_device instead of being initialized
through the IRQCHIP_DECLARE infrastructure which impeded its parent IRQ
retrieval through the blamed commit.

Note that this does not set ONLY_BUS because that enables the
of_platform_populate() call. The extra power management operations which
are enabled by that are not required but harmless.

Fixes: 1b1f04d8271e ("of/irq: Ignore interrupt parent for nodes without interrupts")
Signed-off-by: Ioana Ciornei <ioana.ciornei@....com>
Signed-off-by: Thomas Gleixner <tglx@...nel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>
Link: https://patch.msgid.link/20260122134034.3274053-3-ioana.ciornei@nxp.com
---
 drivers/bus/simple-pm-bus.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/bus/simple-pm-bus.c b/drivers/bus/simple-pm-bus.c
index d8e029e..3f00d95 100644
--- a/drivers/bus/simple-pm-bus.c
+++ b/drivers/bus/simple-pm-bus.c
@@ -142,6 +142,12 @@ static const struct of_device_id simple_pm_bus_of_match[] = {
 	{ .compatible = "simple-mfd",	.data = ONLY_BUS },
 	{ .compatible = "isa",		.data = ONLY_BUS },
 	{ .compatible = "arm,amba-bus",	.data = ONLY_BUS },
+	{ .compatible = "fsl,ls1021a-scfg", },
+	{ .compatible = "fsl,ls1043a-scfg", },
+	{ .compatible = "fsl,ls1046a-scfg", },
+	{ .compatible = "fsl,ls1088a-isc", },
+	{ .compatible = "fsl,ls2080a-isc", },
+	{ .compatible = "fsl,lx2160a-isc", },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, simple_pm_bus_of_match);