1 files changed, 11 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/power/rockchip-io-domain.txt b/Documentation/devicetree/bindings/power/rockchip-io-domain.txt
index b8627e763dba..c84fb47265eb 100644
--- a/Documentation/devicetree/bindings/power/rockchip-io-domain.txt
+++ b/Documentation/devicetree/bindings/power/rockchip-io-domain.txt
@@ -35,6 +35,8 @@ Required properties:
   - "rockchip,rk3288-io-voltage-domain" for rk3288
   - "rockchip,rk3368-io-voltage-domain" for rk3368
   - "rockchip,rk3368-pmu-io-voltage-domain" for rk3368 pmu-domains
+  - "rockchip,rk3399-io-voltage-domain" for rk3399
+  - "rockchip,rk3399-pmu-io-voltage-domain" for rk3399 pmu-domains
 - rockchip,grf: phandle to the syscon managing the "general register files"
 
 
@@ -79,6 +81,15 @@ Possible supplies for rk3368 pmu-domains:
 - pmu-supply:    The supply connected to PMUIO_VDD.
 - vop-supply:    The supply connected to LCDC_VDD.
 
+Possible supplies for rk3399:
+- bt656-supply:  The supply connected to APIO2_VDD.
+- audio-supply:  The supply connected to APIO5_VDD.
+- sdmmc-supply:  The supply connected to SDMMC0_VDD.
+- gpio1830       The supply connected to APIO4_VDD.
+
+Possible supplies for rk3399 pmu-domains:
+- pmu1830-supply:The supply connected to PMUIO2_VDD.
+
 Example:
 
         io-domains {