docs: dt: convert changesets to ReST

- 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@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>

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 cb488eeb635372e09ecb2db906c0cdafc1551158..c7fd8cd6a270d9dca4784c7898c7088f460f88ca 100644 (file)
--- 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 7a6aad7d384a52c9198c02d5406625b41a75644d..a9757ec5070ea210cd2274af56657e54c7325c6e 100644 (file)
--- a/Documentation/devicetree/index.rst
+++ b/Documentation/devicetree/index.rst
@@ -9,3 +9,4 @@ Open Firmware and Device Tree
 
    usage-model
    writing-schema
+   changesets