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authorVivek Gautam <vivek.gautam@codeaurora.org>2018-06-27 15:50:56 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2018-07-09 13:14:31 +0300
commit1689cac5b32a6db6f812e8063ea418a7cf023d03 (patch)
tree165be23752f68df71466619de2601bcc12d3714d /Documentation/driver-api/device_link.rst
parente88728f46cfbb59cc7e7acf1d230c05ec093764e (diff)
downloadlinux-1689cac5b32a6db6f812e8063ea418a7cf023d03.tar.xz
driver core: Add flag to autoremove device link on supplier unbind
Add a flag to autoremove the device links on supplier driver unbind. This obviates the need to explicitly delete the link in the remove path. We remove these links only when the supplier's link to its consumers has gone to DL_STATE_SUPPLIER_UNBIND state. Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org> Suggested-by: Lukas Wunner <lukas@wunner.de> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'Documentation/driver-api/device_link.rst')
-rw-r--r--Documentation/driver-api/device_link.rst4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/driver-api/device_link.rst b/Documentation/driver-api/device_link.rst
index a005b904a264..d6763272e747 100644
--- a/Documentation/driver-api/device_link.rst
+++ b/Documentation/driver-api/device_link.rst
@@ -86,6 +86,10 @@ automatically purged when the consumer fails to probe or later unbinds.
This obviates the need to explicitly delete the link in the ``->remove``
callback or in the error path of the ``->probe`` callback.
+Similarly, when the device link is added from supplier's ``->probe`` callback,
+``DL_FLAG_AUTOREMOVE_SUPPLIER`` causes the device link to be automatically
+purged when the supplier fails to probe or later unbinds.
+
Limitations
===========