[PATCH v3 1/2] dt-bindings: at24: Add address-width property

From: alanx . chiang
Date: Wed Jun 27 2018 - 01:47:04 EST


From: Alan 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, the at24 driver
should be added the compatible field for specfic chips.

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.
since v2:
-- Remove redundant space.

---
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..aededdb 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