[PATCH v3 03/17] dt-bindings: pinctrl: allow pin controller device without unit address

Théo Lebrun
2024-01-23T18:47:11Z

Allow a pin controller device to have no address, therefore no unit
address.

The previous $nodename was enforcing a unit address, but
scripts/dtc/checks.c enforced that names with unit addresses have reg
or ranges:

Warning (unit_address_vs_reg): .../pinctrl@0: node has a unit
name, but no reg or ranges property

Fix pinctrl.yaml to adopt a (pinctrl|pinmux)(-[a-z]+)? node name when
neither reg nor ranges are required. Use [a-z]+ to avoid conflicts with
pinctrl-consumer.yaml.

Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
---
Documentation/devicetree/bindings/pinctrl/pinctrl.yaml | 18 +++++++++++++++---
1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/pinctrl.yaml
index d471563119a9..1f1239c9b94d 100644
--- a/Documentation/devicetree/bindings/pinctrl/pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl.yaml
@@ -26,9 +26,6 @@ description: |
controller device.

properties:
- $nodename:
- pattern: "^(pinctrl|pinmux)(@[0-9a-f]+)?$"
-
"#pinctrl-cells":
description: >
Number of pin control cells in addition to the index within the pin
@@ -42,4 +39,19 @@ properties:
This property can be set either globally for the pin controller or in
child nodes for individual pin group control.

+if:
+ anyOf:
+ - required:
+ - reg
+ - required:
+ - ranges
+then:
+ properties:
+ $nodename:
+ pattern: "^(pinctrl|pinmux)(@[0-9a-f]+)?$"
+else:
+ properties:
+ $nodename:
+ pattern: "^(pinctrl|pinmux)(-[a-z]+)?$"
+
additionalProperties: true

--
2.43.0