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authorBartosz Golaszewski <bgolaszewski@baylibre.com>2019-02-05 14:03:44 +0100
committerBartosz Golaszewski <bgolaszewski@baylibre.com>2019-02-14 09:32:25 +0100
commite7224a116f0dac593233143849f25bc095f8d2cc (patch)
tree57a6f5107c886aeccddd8fa110958d0c0a9e1ac4 /Documentation
parent4fa882c9f628b312d697cfcefaa6e973ce8ece3e (diff)
downloadlinux-e7224a116f0dac593233143849f25bc095f8d2cc.tar.bz2
dt-bindings: at24: add the 'num-addresses' property
Currently the at24 driver only creates additional i2c dummies for atmel,24c00 and it's hard-coded. Some other chips (like for example Microchip's 24AA02T) also take more slave addresses despite being otherwise compatible with already supported variants. Add a new property to the device tree binding document that defines the total number of i2c slave addresses taken by the device. The addresses are counted starting from the one in the reg property. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/eeprom/at24.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/eeprom/at24.txt b/Documentation/devicetree/bindings/eeprom/at24.txt
index f9a7c984274c..0e456bbc1213 100644
--- a/Documentation/devicetree/bindings/eeprom/at24.txt
+++ b/Documentation/devicetree/bindings/eeprom/at24.txt
@@ -75,6 +75,8 @@ Optional properties:
- address-width: number of address bits (one of 8, 16).
+ - num-addresses: total number of i2c slave addresses this device takes
+
Example:
eeprom@52 {
@@ -82,4 +84,5 @@ eeprom@52 {
reg = <0x52>;
pagesize = <32>;
wp-gpios = <&gpio1 3 0>;
+ num-addresses = <8>;
};