add xenomai

hc

2024-11-01 2f529f9b558ca1c1bd74be7437a84e4711743404

 kernel/drivers/gpio/gpio-pca953x.c
..
..
@@ -855,6 +855,7 @@
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 	irq_chip->irq_bus_sync_unlock = pca953x_irq_bus_sync_unlock;
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 	irq_chip->irq_set_type = pca953x_irq_set_type;
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 	irq_chip->irq_shutdown = pca953x_irq_shutdown;
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+	irq_chip->flags |= IRQCHIP_PIPELINE_SAFE;
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 	girq = &chip->gpio_chip.irq;
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 	girq->chip = irq_chip;