2  * Multiplexed-IRQs driver for TS-4800's FPGA
4  * Copyright (c) 2015 - Savoir-faire Linux
36 	u16 reg = readw(data->base + IRQ_MASK);  in ts4800_irq_mask()
37 	u16 mask = 1 << d->hwirq;  in ts4800_irq_mask()
39 	writew(reg | mask, data->base + IRQ_MASK);  in ts4800_irq_mask()
45 	u16 reg = readw(data->base + IRQ_MASK);  in ts4800_irq_unmask()
46 	u16 mask = 1 << d->hwirq;  in ts4800_irq_unmask()
48 	writew(reg & ~mask, data->base + IRQ_MASK);  in ts4800_irq_unmask()
55 	seq_puts(p, dev_name(&data->pdev->dev));  in ts4800_irq_print_chip()
67 	struct ts4800_irq_data *data = d->host_data;  in ts4800_irqdomain_map()
85 	u16 status = readw(data->base + IRQ_STATUS);  in ts4800_ic_chained_handle_irq()
97 		generic_handle_domain_irq(data->domain, bit);  in ts4800_ic_chained_handle_irq()
107 	struct device_node *node = pdev->dev.of_node;  in ts4800_ic_probe()
111 	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);  in ts4800_ic_probe()
113 		return -ENOMEM;  in ts4800_ic_probe()
115 	data->pdev = pdev;  in ts4800_ic_probe()
116 	data->base = devm_platform_ioremap_resource(pdev, 0);  in ts4800_ic_probe()
117 	if (IS_ERR(data->base))  in ts4800_ic_probe()
118 		return PTR_ERR(data->base);  in ts4800_ic_probe()
120 	writew(0xFFFF, data->base + IRQ_MASK);  in ts4800_ic_probe()
124 		dev_err(&pdev->dev, "failed to get parent IRQ\n");  in ts4800_ic_probe()
125 		return -EINVAL;  in ts4800_ic_probe()
128 	data->domain = irq_domain_create_linear(dev_fwnode(&pdev->dev), 8, &ts4800_ic_ops, data);  in ts4800_ic_probe()
129 	if (!data->domain) {  in ts4800_ic_probe()
130 		dev_err(&pdev->dev, "cannot add IRQ domain\n");  in ts4800_ic_probe()
131 		return -ENOMEM;  in ts4800_ic_probe()
146 	irq_domain_remove(data->domain);  in ts4800_ic_remove()
150 	{ .compatible = "technologic,ts4800-irqc", },
159 		.name		= "ts4800-irqc",
166 MODULE_DESCRIPTION("Multiplexed-IRQs driver for TS-4800's FPGA");