[PATCH v2 1/2] dt-bindings: at24: Add address-width property

[alanx . chiang]

From: "alanx.chiang" <alanx.chiang@xxxxxxxxx>

The AT24 series chips use 8-bit address by default. If some
chips would like to support more than 8 bits, should add the compatible
field for specfic chips in the driver.

Provide a flexible way to determine the addressing bits through
address-width in this patch.

Signed-off-by: Alan Chiang <alanx.chiang@xxxxxxxxx>
Signed-off-by: Andy Yeh <andy.yeh@xxxxxxxxx>

---
since v1:
-- Remove the address-width field in the example.

---
 Documentation/devicetree/bindings/eeprom/at24.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/eeprom/at24.txt b/Documentation/devicetree/bindings/eeprom/at24.txt
index 61d833a..9467482 100644
--- 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 {
-- 
2.7.4