mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-29 23:53:32 +00:00
3b6c4a11bf
SoundWire has provisions for a simple callback for the IRQ handling so
has no hard dependency on IRQ_DOMAIN, but the recent addition of IRQ
handling was causing builds without IRQ_DOMAIN to fail. Resolve this by
moving the IRQ handling into its own file and only add it to the build
when IRQ_DOMAIN is included in the kernel.
Fixes: 12a95123bf ("soundwire: bus: Allow SoundWire peripherals to register IRQ handlers")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202309150522.MoKeF4jx-lkp@intel.com/
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230920160401.854052-1-ckeepax@opensource.cirrus.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
// 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));
|
|
}
|