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// SPDX-License-Identifier: GPL-2.0
// Copyright (C) 2023 Cirrus Logic, Inc. and
// Cirrus Logic International Semiconductor Ltd.
#include <linux/device.h>
#include <linux/fwnode.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/soundwire/sdw.h>
#include "irq.h"
static int sdw_irq_map(struct irq_domain *h, unsigned int virq,
irq_hw_number_t hw)
{
struct sdw_bus *bus = h->host_data;
irq_set_chip_data(virq, bus);
irq_set_chip(virq, &bus->irq_chip);
irq_set_nested_thread(virq, 1);
irq_set_noprobe(virq);
return 0;
}
static const struct irq_domain_ops sdw_domain_ops = {
.map = sdw_irq_map,
};
int sdw_irq_create(struct sdw_bus *bus,
struct fwnode_handle *fwnode)
{
bus->irq_chip.name = dev_name(bus->dev);
bus->domain = irq_domain_create_linear(fwnode, SDW_MAX_DEVICES,
&sdw_domain_ops, bus);
if (!bus->domain) {
dev_err(bus->dev, "Failed to add IRQ domain\n");
return -EINVAL;
}
return 0;
}
void sdw_irq_delete(struct sdw_bus *bus)
{
irq_domain_remove(bus->domain);
}
void sdw_irq_create_mapping(struct sdw_slave *slave)
{
slave->irq = irq_create_mapping(slave->bus->domain, slave->dev_num);
if (!slave->irq)
dev_warn(&slave->dev, "Failed to map IRQ\n");
}
void sdw_irq_dispose_mapping(struct sdw_slave *slave)
{
irq_dispose_mapping(irq_find_mapping(slave->bus->domain, slave->dev_num));
}
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