ARM: dts: am3517-evm: Add I/O expander for User DIP switches and LEDS

There is a tca6416 GPIO expander on i2c2. This patch enables the
GPIO expander which has several LED's and some connected DIP
switches

Signed-off-by: Derald D. Woods <woods.technical@gmail.com>
Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/am3517-evm.dts b/arch/arm/boot/dts/am3517-evm.dts
index f9ebefa..e5cc930 100644 (file)
--- a/arch/arm/boot/dts/am3517-evm.dts
+++ b/arch/arm/boot/dts/am3517-evm.dts
@@ -105,6 +105,13 @@
 
 &i2c2 {
        clock-frequency = <400000>;
+       /* User DIP swithes [1:8] / User LEDS [1:2] */
+       tca6416: gpio@21 {
+               compatible = "ti,tca6416";
+               reg = <0x21>;
+               gpio-controller;
+               #gpio-cells = <2>;
+       };
 };
 
 &i2c3 {