diff --git a/litex/tools/litex_json2dts.py b/litex/tools/litex_json2dts.py
index 0349a0bd0..835192709 100755
--- a/litex/tools/litex_json2dts.py
+++ b/litex/tools/litex_json2dts.py
@@ -287,6 +287,8 @@ def generate_dts(d, initrd_start=None, initrd_size=None, polling=False):
             leds: gpio@{leds_csr_base:x} {{
                 compatible = "litex,gpio";
                 reg = <0x{leds_csr_base:x} 0x4>;
+                gpio-controller;
+                #gpio-cells = <2>;
                 litex,direction = "out";
                 status = "disabled";
             }};
@@ -313,6 +315,8 @@ def generate_dts(d, initrd_start=None, initrd_size=None, polling=False):
             switches: gpio@{switches_csr_base:x} {{
                 compatible = "litex,gpio";
                 reg = <0x{switches_csr_base:x} 0x4>;
+                gpio-controller;
+                #gpio-cells = <2>;
                 litex,direction = "in";
                 status = "disabled";
             }};