linux-kernel - [PATCH 2/2] bus: simple-pm-bus: probe the Layerscape SCFG node

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Message-Id: <20251204174249.2007730-3-ioana.ciornei@nxp.com>
Date: Thu,  4 Dec 2025 19:42:49 +0200
From: Ioana Ciornei <ioana.ciornei@....com>
To: Thomas Gleixner <tglx@...utronix.de>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Johan Hovold <johan+linaro@...nel.org>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	"Rob Herring (Arm)" <robh@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] 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 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.

Fixes: 1b1f04d8271e ("of/irq: Ignore interrupt parent for nodes without interrupts")
Signed-off-by: Ioana Ciornei <ioana.ciornei@....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 d8e029e7e53f..3f00d953fb9a 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);
-- 
2.25.1