[PATCH v2] dt-bindings: gpio: nxp,pcf8575: add gpio-line-names

[Trevor Woerner <twoerner@xxxxxxxxx>]

The family of PCF857x-compatible chips describe 8-bit i2c i/o expanders.
Allow the user to specify names for the 8 gpio lines.

Signed-off-by: Trevor Woerner <twoerner@xxxxxxxxx>
---
changes in v2:
- the original said [PATCH 1/2], there is no 2/2

---
 Documentation/devicetree/bindings/gpio/nxp,pcf8575.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/gpio/nxp,pcf8575.yaml b/Documentation/devicetree/bindings/gpio/nxp,pcf8575.yaml
index f0ff66c4c74e..81b825a4353c 100644
--- a/Documentation/devicetree/bindings/gpio/nxp,pcf8575.yaml
+++ b/Documentation/devicetree/bindings/gpio/nxp,pcf8575.yaml
@@ -39,6 +39,10 @@ properties:
   reg:
     maxItems: 1
 
+  gpio-line-names:
+    minItems: 1
+    maxItems: 8
+
   gpio-controller: true
 
   '#gpio-cells':
-- 
2.36.0.rc2.17.g4027e30c53