linux/drivers/base
Enrico Granata daaef255dc driver: platform: Support parsing GpioInt 0 in platform_get_irq()
ACPI 5 added support for GpioInt resources as a way to provide
information about interrupts mediated via a GPIO controller.

Several device buses (e.g. SPI, I2C) have support for retrieving
an IRQ specified via this type of resource, and providing it
directly to the driver as an IRQ number.

This is not currently done for the platform drivers, as platform_get_irq()
does not try to parse GpioInt() resources. This requires drivers to
either have to support only one possible IRQ resource, or to have code
in place to try both as a failsafe.

While there is a possibility of ambiguity for devices that exposes
multiple IRQs, it is easy and feasible to support the common case
of devices that only expose one IRQ which would be of either type
depending on the underlying system's architecture.

This commit adds support for parsing a GpioInt resource in order
to fulfill a request for the index 0 IRQ for a platform device.

Signed-off-by: Enrico Granata <egranata@chromium.org>
Reviewed-by: Dmitry Torokhov <dtor@chromium.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-12 10:36:49 +01:00
..
firmware_loader firmware_loader: move firmware/ to drivers/base/firmware_loader/builtin/ 2019-01-22 10:23:18 +01:00
power Merge 5.0-rc6 into driver-core-next 2019-02-11 09:09:02 +01:00
regmap regmap-irq: do not write mask register if mask_base is zero 2019-01-14 22:11:22 +00:00
test driver core: Rewrite test_async_driver_probe to cover serialization and NUMA affinity 2019-01-31 14:20:54 +01:00
arch_topology.c sched/topology, drivers/base/arch_topology: Rebuild the sched_domain hierarchy when capacities change 2018-09-10 11:05:47 +02:00
attribute_container.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
base.h driver core: Probe devices asynchronously instead of the driver 2019-01-31 14:20:53 +01:00
bus.c driver core: Probe devices asynchronously instead of the driver 2019-01-31 14:20:53 +01:00
cacheinfo.c cacheinfo: Keep the old value if of_property_read_u32 fails 2019-01-22 13:50:31 +01:00
class.c driver core: move device->knode_class to device_private 2019-01-18 16:55:48 +01:00
component.c components: multiple components for a device 2019-02-08 16:58:03 +01:00
container.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
core.c driver core: Add device link flag DL_FLAG_AUTOPROBE_CONSUMER 2019-02-01 10:04:08 +01:00
cpu.c drivers: base: Use __printf markup to silence compiler 2019-01-31 19:28:40 +01:00
dd.c driver core: Postpone DMA tear-down until after devres release 2019-02-08 12:56:33 +01:00
devcon.c drivers: base: Unified device connection lookup 2018-03-22 13:10:29 +01:00
devcoredump.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
devres.c devres: Align data[] to ARCH_KMALLOC_MINALIGN 2018-11-11 11:40:04 -08:00
devtmpfs.c vfs: Suppress MS_* flag defs within the kernel unless explicitly enabled 2018-12-20 16:32:56 +00:00
driver.c driver-core: return EINVAL error instead of BUG_ON() 2018-05-25 18:18:45 +02:00
firmware.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
hypervisor.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
init.c base: fix order of OF initialization 2018-07-07 17:54:29 +02:00
isa.c Merge 4.15-rc3 into driver-core-next 2017-12-11 08:50:05 +01:00
Kconfig firmware_loader: move kconfig FW_LOADER entries to its own file 2018-05-14 16:43:10 +02:00
Makefile drivers: base: Introducing software nodes to the firmware node framework 2018-11-26 18:19:11 +01:00
map.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
memory.c Driver core patches for 4.21-rc1 2018-12-28 20:44:29 -08:00
module.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
node.c mm, proc: add KReclaimable to /proc/meminfo 2018-10-26 16:26:32 -07:00
pinctrl.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
platform-msi.c platform-msi: Free descriptors in platform_msi_domain_free() 2018-12-13 09:35:31 +00:00
platform.c driver: platform: Support parsing GpioInt 0 in platform_get_irq() 2019-02-12 10:36:49 +01:00
property.c device property: fix fwnode_graph_get_next_endpoint() documentation 2018-12-18 23:39:45 +01:00
soc.c base: soc: use put_device() instead of kfree() 2018-03-15 14:37:03 +01:00
swnode.c drivers: base: swnode: check if swnode is NULL before dereferencing it 2018-12-26 10:50:36 +01:00
syscore.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
topology.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00
transport_class.c driver core: Remove redundant license text 2017-12-07 18:36:44 +01:00