Commit Graph

3 Commits

Author SHA1 Message Date
Rob Herring
cfda05c1dd dt-bindings: vexpress-sysreg: Allow for no child nodes
It is valid for arm,vexpress-sysreg to have no child nodes when either
the deprecated binding without child nodes is used or a platform
has no GPIOs. If there are no child nodes, then "#address-cells" and
"#size-cells" should not be required. However, "reg" should be present
in all cases, so let's add it now.

Cc: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220613171809.3928949-2-robh@kernel.org
2022-06-17 13:14:51 -06:00
Rob Herring
67fcaf2877 dt-bindings: vexpress-sysreg: Add deprecated GPIO provider properties
While the current binding expects a child GPIO node, the old style binding
with GPIO provider properties in the parent vexpress-sysreg node is
still in use. Add the GPIO provider properties as deprecated.

Cc: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220613171809.3928949-1-robh@kernel.org
2022-06-17 13:14:38 -06:00
Andre Przywara
47db321666 dt-bindings: arm: convert vexpress-sysregs to DT schema
The Arm Versatile Express system control register block provides GPIO
functionality to some devices and is also used for board identification.

Extract the first half of the informal vexpress-sysreg.txt binding and
make it proper DT schema compliant.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220506140533.3566431-7-andre.przywara@arm.com
2022-05-09 11:03:49 -05:00