linux-kernel - [PATCH 1/5] dt-bindings: nvmem: add "label" property to allow more flexible cells names

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Date:   Thu, 23 Dec 2021 12:07:51 +0100
From:   Rafał Miłecki <zajec5@...il.com>
To:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Rob Herring <robh+dt@...nel.org>
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org,
        Rafał Miłecki <rafal@...ecki.pl>
Subject: [PATCH 1/5] dt-bindings: nvmem: add "label" property to allow more flexible cells names

From: Rafał Miłecki <rafal@...ecki.pl>

So far NVMEM cells names were indicated by DT $nodename. That didn't
allow fancy names with characters that are not allowed there.

That wasn't a big problem for cells fully defined in DT. One could just
adjust a name slightly if needed.

This is a problem a however for NVMEM devices with cells defined at
device level. Such vendor defined names can be more fancy and DT needs a
way to match them strictly.

Signed-off-by: Rafał Miłecki <rafal@...ecki.pl>
---
 Documentation/devicetree/bindings/nvmem/nvmem.yaml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/nvmem/nvmem.yaml b/Documentation/devicetree/bindings/nvmem/nvmem.yaml
index 456fb808100a..3392405ee010 100644
--- a/Documentation/devicetree/bindings/nvmem/nvmem.yaml
+++ b/Documentation/devicetree/bindings/nvmem/nvmem.yaml
@@ -49,6 +49,9 @@ patternProperties:
         description:
           Offset and size in bytes within the storage device.
 
+      label:
+        description: name of NVMEM cell
+
       bits:
         maxItems: 1
         items:
-- 
2.31.1