drivers/irqchip/irq-realtek-rtl.c

1 // SPDX-License-Identifier: GPL-2.0-only
3  * Copyright (C) 2020 Birger Koblitz <mail@birger-koblitz.de>
32  * IRR0-IRR3 store 4 bits per interrupt, but Realtek uses inverted numbering,
37 #define IRR_OFFSET(idx)		(4 * (3 - (idx * 4) / 32))
59 	value |= BIT(i->hwirq);  in realtek_ictl_unmask_irq()
73 	value &= ~BIT(i->hwirq);  in realtek_ictl_mask_irq()
80 	.name = "realtek-rtl-intc",
135 		return -ENXIO;  in realtek_rtl_of_init()
146 		 * all known hardware anyway. "interrupt-map" is deprecated, so  in realtek_rtl_of_init()
149 		oirq.np = of_find_compatible_node(NULL, NULL, "mti,cpu-interrupt-controller");  in realtek_rtl_of_init()
163 		return -ENODEV;  in realtek_rtl_of_init()
167 		return -ENOMEM;  in realtek_rtl_of_init()
174 IRQCHIP_DECLARE(realtek_rtl_intc, "realtek,rtl-intc", realtek_rtl_of_init);