- Add a SPDX header; - Add a document title; - Some whitespace fixes and new line breaks; - Add it to devicetree/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx> --- .../{changesets.txt => changesets.rst} | 24 ++++++++++++------- Documentation/devicetree/index.rst | 1 + 2 files changed, 16 insertions(+), 9 deletions(-) rename Documentation/devicetree/{changesets.txt => changesets.rst} (59%) diff --git a/Documentation/devicetree/changesets.txt b/Documentation/devicetree/changesets.rst similarity index 59% rename from Documentation/devicetree/changesets.txt rename to Documentation/devicetree/changesets.rst index cb488eeb6353..c7fd8cd6a270 100644 --- a/Documentation/devicetree/changesets.txt +++ b/Documentation/devicetree/changesets.rst @@ -1,3 +1,9 @@ +.. SPDX-License-Identifier: GPL-2.0 + +============= +DT Changesets +============= + A DT changeset is a method which allows one to apply changes in the live tree in such a way that either the full set of changes will be applied, or none of them will be. If an error occurs partway @@ -15,17 +21,17 @@ The sequence of a changeset is as follows. 1. of_changeset_init() - initializes a changeset 2. A number of DT tree change calls, of_changeset_attach_node(), -of_changeset_detach_node(), of_changeset_add_property(), -of_changeset_remove_property, of_changeset_update_property() to prepare -a set of changes. No changes to the active tree are made at this point. -All the change operations are recorded in the of_changeset 'entries' -list. + of_changeset_detach_node(), of_changeset_add_property(), + of_changeset_remove_property, of_changeset_update_property() to prepare + a set of changes. No changes to the active tree are made at this point. + All the change operations are recorded in the of_changeset 'entries' + list. 3. of_changeset_apply() - Apply the changes to the tree. Either the -entire changeset will get applied, or if there is an error the tree will -be restored to the previous state. The core ensures proper serialization -through locking. An unlocked version __of_changeset_apply is available, -if needed. + entire changeset will get applied, or if there is an error the tree will + be restored to the previous state. The core ensures proper serialization + through locking. An unlocked version __of_changeset_apply is available, + if needed. If a successfully applied changeset needs to be removed, it can be done with of_changeset_revert(). diff --git a/Documentation/devicetree/index.rst b/Documentation/devicetree/index.rst index 6b4daf252375..64c78c3ffea6 100644 --- a/Documentation/devicetree/index.rst +++ b/Documentation/devicetree/index.rst @@ -10,3 +10,4 @@ Open Firmware and Device Tree usage-model writing-schema booting-without-of + changesets -- 2.25.2