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authorSakari Ailus <sakari.ailus@linux.intel.com>2018-07-17 17:19:15 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2018-07-23 12:44:52 +0200
commit6561eb3d3a23c4d38ba428396b7a14e184804535 (patch)
tree9855bd9c934635ca971810428658b4a647453c24 /drivers/acpi
parentACPI: property: Make the ACPI graph API private (diff)
downloadlinux-dev-6561eb3d3a23c4d38ba428396b7a14e184804535.tar.xz
linux-dev-6561eb3d3a23c4d38ba428396b7a14e184804535.zip
ACPI: property: Allow direct graph endpoint references
By using device and further data node references, allow direct references to endpoints. These are of form Package() { \DEV, "portX", "endpointY" } where X is the number of the port and Y is the number of the endpoint. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/property.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c
index 19bdada64435..10af340eedd2 100644
--- a/drivers/acpi/property.c
+++ b/drivers/acpi/property.c
@@ -1122,9 +1122,9 @@ acpi_graph_get_remote_endpoint(const struct fwnode_handle *__fwnode)
if (ret)
return NULL;
- /* Ensure this is a device node. */
+ /* Direct endpoint reference? */
if (!is_acpi_device_node(args.fwnode))
- return NULL;
+ return args.nargs ? NULL : args.fwnode;
/*
* Always require two arguments with the reference: port and