Messages in this thread | | | From | Alan Tull <> | Subject | [PATCH 0/2] of: dynamic: restrict overlay by targets | Date | Mon, 4 Dec 2017 13:13:55 -0600 |
| |
Restrict which nodes are valid targets for a DT overlay.
Add a flag bit to struct device_node allowing nodes to be marked as valid target for overlays.
A driver that is always intended to handle DT overlays can enable overlays by calling a function for its DT node.
For individual nodes that need to be opened up for a specific use, adding the property "overlay-allowed" enables overlays targeting that node. I'll need to document the DT property, not sure where specifically. New file bindings/overlay.txt?
This patchset differs from the RFC: * Added a flag bit and got rid of the whitelist * Renamed the functions that enable a node * Added a DT property
Alan Tull (2): of: overlay: add flag enabling overlays and enable fpga-region overlays of: dynamic: add overlay-allowed DT property
drivers/fpga/of-fpga-region.c | 4 ++++ drivers/of/base.c | 4 ++-- drivers/of/dynamic.c | 3 +++ drivers/of/fdt.c | 3 +++ drivers/of/of_private.h | 2 ++ drivers/of/overlay.c | 26 ++++++++++++++++++++++++++ include/linux/of.h | 19 +++++++++++++++++++ 7 files changed, 59 insertions(+), 2 deletions(-)
-- 2.7.4
| |