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ACPI: bus: Add iterator for dependent devices 

Add a helper macro to iterate over ACPI devices that are flagged
as consumers of an initial supplier ACPI device.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Daniel Scally <djrscally@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Daniel Scally 2022-09-22 00:04:36 +01:00 committed by Rafael J. Wysocki
parent cca8a7efea
commit 62c8bc0d27
1 changed files with 11 additions and 0 deletions
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11
include/acpi/acpi_bus.h
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@ -745,6 +745,17 @@ bool acpi_dev_ready_for_enumeration(const struct acpi_device *device);
struct acpi_device *acpi_dev_get_next_consumer_dev(struct acpi_device *supplier,
struct acpi_device *start);
/**
* for_each_acpi_consumer_dev - iterate over the consumer ACPI devices for a
* given supplier
* @supplier: Pointer to the supplier's ACPI device
* @consumer: Pointer to &struct acpi_device to hold the consumer, initially NULL
*/
#define for_each_acpi_consumer_dev(supplier, consumer) \
for (consumer = acpi_dev_get_next_consumer_dev(supplier, NULL); \
consumer; \
consumer = acpi_dev_get_next_consumer_dev(supplier, consumer))
struct acpi_device *
acpi_dev_get_next_match_dev(struct acpi_device *adev, const char *hid, const char *uid, s64 hrv);
struct acpi_device *