This commit documents bindings to be added to the eeprom_93xx46 driver
which allow device word size and read-only attributes to be specified
via devicetree.
Currently the only supported device is a generic "eeprom-93xx46", which
mirrors the configuration options previously available as a platform
device.
Signed-off-by: Cory Tusar <cory.tusar@xxxxxxxxxxxxxxxxx>
---
.../devicetree/bindings/misc/eeprom-93xx46.txt | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/Documentation/devicetree/bindings/misc/eeprom-93xx46.txt b/Documentation/devicetree/bindings/misc/eeprom-93xx46.txt
new file mode 100644
index 0000000..ba493a8
--- /dev/null
+++ b/Documentation/devicetree/bindings/misc/eeprom-93xx46.txt
@@ -0,0 +1,20 @@
+EEPROMs (SPI) compatible with Microchip Technology 93xx46 family.
+
+Required properties:
+- compatible : "eeprom-93xx46"
+- data-size : number of data bits per word (either 8 or 16)
+
+Optional properties:
+- read-only : parameter-less property which disables writes to the EEPROM
+
+Property rules described in Documentation/devicetree/bindings/spi/spi-bus.txt
+apply. In particular, "reg" and "spi-max-frequency" properties must be given.
+
+Example:
+ 93c46c@0 {
+ compatible = "eeprom-93xx46";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ spi-cs-high;
+ data-size = <8>;
+ };
--
2.4.10
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