ARM: dts: am335x-sl50: Enable the MCP23017 GPIO Expander.

Add support for the 16-Bit I/O Expander connected via the I2C bus.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/am335x-sl50.dts b/arch/arm/boot/dts/am335x-sl50.dts
index fddef183481efd83a59fa8a3ff396c7c75966109..010c99e804245570daa7db1b9277a0cd64ef3e52 100644 (file)
--- a/arch/arm/boot/dts/am335x-sl50.dts
+++ b/arch/arm/boot/dts/am335x-sl50.dts
@@ -313,6 +313,10 @@
                reg = <0x50>;
        };
 
+       gpio_exp: mcp23017@20 {
+               compatible = "microchip,mcp23017";
+               reg = <0x20>;
+       };
 
 };