From 3b6c4a11bf2b810f772f5c2c1ef6eef3fc268246 Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Wed, 20 Sep 2023 17:04:01 +0100 Subject: soundwire: bus: Make IRQ handling conditionally built 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: 12a95123bfe1 ("soundwire: bus: Allow SoundWire peripherals to register IRQ handlers") Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202309150522.MoKeF4jx-lkp@intel.com/ Acked-by: Randy Dunlap Tested-by: Randy Dunlap Signed-off-by: Charles Keepax Link: https://lore.kernel.org/r/20230920160401.854052-1-ckeepax@opensource.cirrus.com Signed-off-by: Vinod Koul --- drivers/soundwire/irq.c | 59 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 drivers/soundwire/irq.c (limited to 'drivers/soundwire/irq.c') diff --git a/drivers/soundwire/irq.c b/drivers/soundwire/irq.c new file mode 100644 index 000000000000..0c08cebb1235 --- /dev/null +++ b/drivers/soundwire/irq.c @@ -0,0 +1,59 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (C) 2023 Cirrus Logic, Inc. and +// Cirrus Logic International Semiconductor Ltd. + +#include +#include +#include +#include +#include +#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)); +} -- cgit