drivers/irqchip/exynos-combiner.c

1 // SPDX-License-Identifier: GPL-2.0-only
3  * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
6  * Combiner irqchip for EXYNOS
48 	return combiner_data->base;  in combiner_base()
53 	u32 mask = 1 << (data->hwirq % 32);  in combiner_mask_irq()
60 	u32 mask = 1 << (data->hwirq % 32);  in combiner_unmask_irq()
76 	status = readl_relaxed(chip_data->base + COMBINER_INT_STATUS);  in combiner_handle_cascade_irq()
78 	status &= chip_data->irq_mask;  in combiner_handle_cascade_irq()
83 	combiner_irq = chip_data->hwirq_offset + __ffs(status);  in combiner_handle_cascade_irq()
97 	struct irq_chip *chip = irq_get_chip(chip_data->parent_irq);  in combiner_set_affinity()
98 	struct irq_data *data = irq_get_irq_data(chip_data->parent_irq);  in combiner_set_affinity()
100 	if (chip && chip->irq_set_affinity)  in combiner_set_affinity()
101 		return chip->irq_set_affinity(data, mask_val, force);  in combiner_set_affinity()
103 		return -EINVAL;  in combiner_set_affinity()
108 	.name			= "COMBINER",
127 	combiner_data->base = base;  in combiner_init_one()
128 	combiner_data->hwirq_offset = (combiner_nr & ~3) * IRQ_IN_COMBINER;  in combiner_init_one()
129 	combiner_data->irq_mask = 0xff << ((combiner_nr % 4) << 3);  in combiner_init_one()
130 	combiner_data->parent_irq = irq;  in combiner_init_one()
133 	writel_relaxed(combiner_data->irq_mask, base + COMBINER_ENABLE_CLEAR);  in combiner_init_one()
143 		return -EINVAL;  in combiner_irq_domain_xlate()
146 		return -EINVAL;  in combiner_irq_domain_xlate()
157 	struct combiner_chip_data *combiner_data = d->host_data;  in combiner_irq_domain_map()
202  * combiner_suspend - save interrupt combiner state before suspend
204  * Save the interrupt enable set register for all combiner groups since
220  * combiner_resume - restore interrupt combiner state after resume
222  * Restore the interrupt enable set register for all combiner groups since
255 		pr_err("%s: failed to map combiner registers\n", __func__);  in combiner_of_init()
256 		return -ENXIO;  in combiner_of_init()
259 	if (of_property_read_u32(np, "samsung,combiner-nr", &max_nr)) {  in combiner_of_init()
271 IRQCHIP_DECLARE(exynos4210_combiner, "samsung,exynos4210-combiner",