dt-bindings: at24: Add address-width property

Alan Chiang · brgl · commit 21d04054501f · 2018-07-25T09:17:24.000+02:00
Currently the only way to use a variant of a supported model with
a different address width is to define a new compatible string and
the corresponding chip data structure.

Provide a flexible way to specify the size of the address pointer
by defining a new property: address-width.

Signed-off-by: Alan Chiang &lt;alanx.chiang@intel.com&gt;
Signed-off-by: Andy Yeh &lt;andy.yeh@intel.com&gt;
Acked-by: Sakari Ailus &lt;sakari.ailus@linux.intel.com&gt;
Reviewed-by: Rob Herring &lt;robh@kernel.org&gt;
[Bartosz: fixed the commit message]
Signed-off-by: Bartosz Golaszewski &lt;brgl@bgdev.pl&gt;
diff --git a/Documentation/devicetree/bindings/eeprom/at24.txt b/Documentation/devicetree/bindings/eeprom/at24.txt
@@ -72,6 +72,8 @@ Optional properties:
 
   - wp-gpios: GPIO to which the write-protect pin of the chip is connected.
 
+  - address-width: number of address bits (one of 8, 16).
+
 Example:
 
 eeprom@52 {
