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@nxp.com>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20260122134034.3274053-3-ioana.ciornei@nxp.com

diff --git a/drivers/bus/simple-pm-bus.c b/drivers/bus/simple-pm-bus.c
index d8e029e7e53f72c226a11287d827bdce0715bff8..3f00d953fb9a0eb3f3225ffa913ab4f12336913f 100644 (file)
--- 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);