[PATCH 3/3] arm64: dts: ti: k3-j7200-mcu-wakeup: Split fss node up

[Nishanth Menon <nm@ti.com>]

fss node claims to be entirely a syscon node, but it is really two
parts of it - one a syscon that controls the hbmc mux and a simple bus
where ospi, hbmc peripherals are located. So model it accordingly by
splitting the node up and using ti,j721e-system-controller to describe
the syscon

Signed-off-by: Nishanth Menon <nm@ti.com>
---
 .../boot/dts/ti/k3-j7200-mcu-wakeup.dtsi      | 21 +++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
index b58a31371bf3..7653cb191be1 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
@@ -338,18 +338,27 @@ mcu_spi2: spi@40320000 {
 		status = "disabled";
 	};
 
-	fss: syscon@47000000 {
-		compatible = "syscon", "simple-mfd";
+	hbmc_syscon: syscon@47000000 {
+		compatible = "ti,j721e-system-controller", "syscon", "simple-mfd";
 		reg = <0x00 0x47000000 0x00 0x100>;
-		#address-cells = <2>;
-		#size-cells = <2>;
-		ranges;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0x00 0x00 0x47000000 0x100>;
 
-		hbmc_mux: hbmc-mux {
+		hbmc_mux: mux-controller@4 {
 			compatible = "mmio-mux";
+			reg = <0x4 0x2>;
 			#mux-control-cells = <1>;
 			mux-reg-masks = <0x4 0x2>; /* HBMC select */
 		};
+	};
+
+	fss: bus@47030000 {
+		compatible = "simple-bus";
+		reg = <0x0 0x47030000 0x0 0x100>;
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
 
 		hbmc: hyperbus@47034000 {
 			compatible = "ti,am654-hbmc";
-- 
2.40.0