From 3b6c4a11bf2b810f772f5c2c1ef6eef3fc268246 Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Wed, 20 Sep 2023 17:04:01 +0100 Subject: [PATCH] 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/Makefile | 4 +++ drivers/soundwire/bus.c | 31 +++---------------- drivers/soundwire/bus_type.c | 11 +++---- drivers/soundwire/irq.c | 59 ++++++++++++++++++++++++++++++++++++ drivers/soundwire/irq.h | 43 ++++++++++++++++++++++++++ 5 files changed, 115 insertions(+), 33 deletions(-) create mode 100644 drivers/soundwire/irq.c create mode 100644 drivers/soundwire/irq.h diff --git a/drivers/soundwire/Makefile b/drivers/soundwire/Makefile index c3d3ab3262d3..657f5888a77b 100644 --- a/drivers/soundwire/Makefile +++ b/drivers/soundwire/Makefile @@ -15,6 +15,10 @@ ifdef CONFIG_DEBUG_FS soundwire-bus-y += debugfs.o endif +ifdef CONFIG_IRQ_DOMAIN +soundwire-bus-y += irq.o +endif + #AMD driver soundwire-amd-y := amd_manager.o obj-$(CONFIG_SOUNDWIRE_AMD) += soundwire-amd.o diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c index 1720031f35a3..0e7bc3c40f9d 100644 --- a/drivers/soundwire/bus.c +++ b/drivers/soundwire/bus.c @@ -3,13 +3,13 @@ #include #include -#include #include #include #include #include #include #include "bus.h" +#include "irq.h" #include "sysfs_local.h" static DEFINE_IDA(sdw_bus_ida); @@ -25,23 +25,6 @@ static int sdw_get_id(struct sdw_bus *bus) return 0; } -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, -}; - /** * sdw_bus_master_add() - add a bus Master instance * @bus: bus instance @@ -168,13 +151,9 @@ int sdw_bus_master_add(struct sdw_bus *bus, struct device *parent, bus->params.curr_bank = SDW_BANK0; bus->params.next_bank = SDW_BANK1; - 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; - } + ret = sdw_irq_create(bus, fwnode); + if (ret) + return ret; return 0; } @@ -213,7 +192,7 @@ void sdw_bus_master_delete(struct sdw_bus *bus) { device_for_each_child(bus->dev, NULL, sdw_delete_slave); - irq_domain_remove(bus->domain); + sdw_irq_delete(bus); sdw_master_device_del(bus); diff --git a/drivers/soundwire/bus_type.c b/drivers/soundwire/bus_type.c index fafbc284e82d..9fa93bb923d7 100644 --- a/drivers/soundwire/bus_type.c +++ b/drivers/soundwire/bus_type.c @@ -7,6 +7,7 @@ #include #include #include "bus.h" +#include "irq.h" #include "sysfs_local.h" /** @@ -122,11 +123,8 @@ static int sdw_drv_probe(struct device *dev) if (drv->ops && drv->ops->read_prop) drv->ops->read_prop(slave); - if (slave->prop.use_domain_irq) { - slave->irq = irq_create_mapping(slave->bus->domain, slave->dev_num); - if (!slave->irq) - dev_warn(dev, "Failed to map IRQ\n"); - } + if (slave->prop.use_domain_irq) + sdw_irq_create_mapping(slave); /* init the sysfs as we have properties now */ ret = sdw_slave_sysfs_init(slave); @@ -176,8 +174,7 @@ static int sdw_drv_remove(struct device *dev) slave->probed = false; if (slave->prop.use_domain_irq) - irq_dispose_mapping(irq_find_mapping(slave->bus->domain, - slave->dev_num)); + sdw_irq_dispose_mapping(slave); mutex_unlock(&slave->sdw_dev_lock); 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)); +} diff --git a/drivers/soundwire/irq.h b/drivers/soundwire/irq.h new file mode 100644 index 000000000000..58a58046d92b --- /dev/null +++ b/drivers/soundwire/irq.h @@ -0,0 +1,43 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2023 Cirrus Logic, Inc. and + * Cirrus Logic International Semiconductor Ltd. + */ + +#ifndef __SDW_IRQ_H +#define __SDW_IRQ_H + +#include +#include + +#if IS_ENABLED(CONFIG_IRQ_DOMAIN) + +int sdw_irq_create(struct sdw_bus *bus, + struct fwnode_handle *fwnode); +void sdw_irq_delete(struct sdw_bus *bus); +void sdw_irq_create_mapping(struct sdw_slave *slave); +void sdw_irq_dispose_mapping(struct sdw_slave *slave); + +#else /* CONFIG_IRQ_DOMAIN */ + +static inline int sdw_irq_create(struct sdw_bus *bus, + struct fwnode_handle *fwnode) +{ + return 0; +} + +static inline void sdw_irq_delete(struct sdw_bus *bus) +{ +} + +static inline void sdw_irq_create_mapping(struct sdw_slave *slave) +{ +} + +static inline void sdw_irq_dispose_mapping(struct sdw_slave *slave) +{ +} + +#endif /* CONFIG_IRQ_DOMAIN */ + +#endif /* __SDW_IRQ_H */