ARM: dts: at91: sama5d27_som1_ek: add i2c filters properties

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@microchip.com>
Link: https://lore.kernel.org/r/1575531818-21332-1-git-send-email-eugen.hristev@microchip.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

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 (file)
--- 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";