[PATCH 1/2] dt-bindings: nvmem: fixed-layout: Allow optional bit positions

[Sven Peter <sven@kernel.org>]

NVMEM nodes can optionally include the bits property to specify the bit
position of the cell within a byte.
Extend patternProperties to allow adding the bit offset to the node
address to be able to distinguish nodes with the same address but
different bit positions, e.g.

   trim@54,4 {
        reg = <0x54 1>;
        bits = <4 2>;
    };
    trim@54,0 {
        reg = <0x54 1>;
        bits = <0 4>;
    };

Before the conversion to NVMEM layouts in commit bd912c991d2e
("dt-bindings: nvmem: layouts: add fixed-layout") this extension was
originally added with commit 4b2545dd19ed ("dt-bindings: nvmem: Extend
patternProperties to optionally indicate bit position") to the now
deprecated layout.

Signed-off-by: Sven Peter <sven@kernel.org>
---
 Documentation/devicetree/bindings/nvmem/layouts/fixed-layout.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/nvmem/layouts/fixed-layout.yaml b/Documentation/devicetree/bindings/nvmem/layouts/fixed-layout.yaml
index 9bd34bd5af30d83ae03d48b10f3b2c5be2ee9586..b01567f9928443fd0f6d4f252cf2632dbec0de9a 100644
--- a/Documentation/devicetree/bindings/nvmem/layouts/fixed-layout.yaml
+++ b/Documentation/devicetree/bindings/nvmem/layouts/fixed-layout.yaml
@@ -27,7 +27,7 @@ properties:
     const: 1
 
 patternProperties:
-  "@[a-f0-9]+$":
+  "@[a-f0-9]+(,[0-7])?$":
     type: object
     $ref: fixed-cell.yaml
     unevaluatedProperties: false

-- 
2.34.1