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device property: Introduce fwnode_device_is_available()

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Add fwnode_device_is_available() to tell whether the device corresponding
to a certain fwnode_handle is available for use.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Sakari Ailus
2017-06-06 12:37:39 +03:00
committed by Rafael J. Wysocki
parent 3b27d00e7b
commit 2294b3af05
5 changed files with 27 additions and 0 deletions
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9
drivers/acpi/property.c
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@@ -1121,6 +1121,14 @@ int acpi_graph_get_remote_endpoint(struct fwnode_handle *fwnode,
return 0;
}
static bool acpi_fwnode_device_is_available(struct fwnode_handle *fwnode)
{
if (!is_acpi_device_node(fwnode))
return false;
return acpi_device_is_present(to_acpi_device_node(fwnode));
}
static bool acpi_fwnode_property_present(struct fwnode_handle *fwnode,
const char *propname)
{
@@ -1216,6 +1224,7 @@ static int acpi_fwnode_graph_parse_endpoint(struct fwnode_handle *fwnode,
}
const struct fwnode_operations acpi_fwnode_ops = {
.device_is_available = acpi_fwnode_device_is_available,
.property_present = acpi_fwnode_property_present,
.property_read_int_array = acpi_fwnode_property_read_int_array,
.property_read_string_array = acpi_fwnode_property_read_string_array,