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author | 2023-08-18 17:37:08 +0100 | |
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committer | 2023-08-18 17:37:08 +0100 | |
commit | 038e0da7bac2f36ca85ca6fc869961d91bc82389 (patch) | |
tree | 988517ae6feaf544f1f9d72558806df9a8ec874e /drivers/soundwire/bus.c | |
parent | Linux 6.5-rc6 (diff) | |
parent | pinctrl: cs42l43: Add support for the cs42l43 (diff) | |
download | linux-038e0da7bac2f36ca85ca6fc869961d91bc82389.tar.gz linux-038e0da7bac2f36ca85ca6fc869961d91bc82389.tar.bz2 linux-038e0da7bac2f36ca85ca6fc869961d91bc82389.zip |
mfd: Immutable branch between MFD, Pinctrl and soundwire due for the v6.6 merge window
Merge tag 'ib-mfd-pinctrl-soundwire-v6.6' of https://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into tmp
Immutable branch between MFD, Pinctrl and soundwire due for the v6.6 merge window
Diffstat (limited to 'drivers/soundwire/bus.c')
-rw-r--r-- | drivers/soundwire/bus.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c index cf78839b3f74..1cc2281cb370 100644 --- a/drivers/soundwire/bus.c +++ b/drivers/soundwire/bus.c @@ -3,6 +3,7 @@ #include <linux/acpi.h> #include <linux/delay.h> +#include <linux/irq.h> #include <linux/mod_devicetable.h> #include <linux/pm_runtime.h> #include <linux/soundwire/sdw_registers.h> @@ -25,6 +26,23 @@ 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 @@ -151,6 +169,14 @@ 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; + } + return 0; } EXPORT_SYMBOL(sdw_bus_master_add); @@ -187,6 +213,9 @@ static int sdw_delete_slave(struct device *dev, void *data) 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_master_device_del(bus); sdw_bus_debugfs_exit(bus); @@ -1725,6 +1754,9 @@ static int sdw_handle_slave_alerts(struct sdw_slave *slave) struct device *dev = &slave->dev; struct sdw_driver *drv = drv_to_sdw_driver(dev->driver); + if (slave->prop.use_domain_irq && slave->irq) + handle_nested_irq(slave->irq); + if (drv->ops && drv->ops->interrupt_callback) { slave_intr.sdca_cascade = sdca_cascade; slave_intr.control_port = clear; |