From: Eugen Hristev <eugen.hristev@xxxxxxxxxxxxx>
Add properties for i2c filters for i2c0 and i2c1 on sama5d27_som1_ek.
Noise is affecting communication on i2c for example when connecting i2c
camera sensors.
Signed-off-by: Eugen Hristev <eugen.hristev@xxxxxxxxxxxxx>
---
Changes in v2:
- properties were at the wrong node for i2c0, need to be at the i2c node
not the parent flexcom
arch/arm/boot/dts/at91-sama5d27_som1_ek.dts | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts b/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts
index fca5716..b0853bf 100644
--- a/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts
+++ b/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts
@@ -131,6 +131,9 @@
interrupts = <20 IRQ_TYPE_LEVEL_HIGH 7>;
dmas = <0>, <0>;
dma-names = "tx", "rx";
+ i2c-analog-filter;
+ i2c-digital-filter;
+ i2c-digital-filter-width-ns = <35>;
#address-cells = <1>;
#size-cells = <0>;
clocks = <&pmc PMC_TYPE_PERIPHERAL 20>;
@@ -246,6 +249,9 @@
i2c1: i2c@fc028000 {
dmas = <0>, <0>;
+ i2c-analog-filter;
+ i2c-digital-filter;
+ i2c-digital-filter-width-ns = <35>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c1_default>;
status = "okay";
--
2.7.4
