From: Eugen Hristev <eugen.hristev@xxxxxxxxxxxxx>
Add binding specificatoin for digital filter inside the i2c controller
Signed-off-by: Eugen Hristev <eugen.hristev@xxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/i2c/i2c-at91.txt | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/i2c/i2c-at91.txt b/Documentation/devicetree/bindings/i2c/i2c-at91.txt
index 2210f43..8268595 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-at91.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-at91.txt
@@ -20,6 +20,9 @@ Optional properties:
capable I2C controllers.
- i2c-sda-hold-time-ns: TWD hold time, only available for "atmel,sama5d4-i2c"
and "atmel,sama5d2-i2c".
+- enable-dig-filt: Enable the built-in digital filter on the i2c lines,
+ specifically required depending on the hardware PCB/board and if the
+ version of the controller includes it.
- Child nodes conforming to i2c bus binding
Examples :
@@ -56,6 +59,7 @@ i2c0: i2c@f8034600 {
clocks = <&flx0>;
atmel,fifo-size = <16>;
i2c-sda-hold-time-ns = <336>;
+ enable-dig-filt;
wm8731: wm8731@1a {
compatible = "wm8731";
--
2.7.4
