ARM: dts: lpc32xx: Use syscon for system control block

The clock controller is a part of NXP LPC32xx system control block (SCB),
and SCB provides a number of controllers apart of the clock controller.

[vzapolskiy]:
1. kept a simple comment,
2. renamed SoC specific compatible to 'nxp,lpc3220-scb' due to the SoC UM,
3. changed size in 'ranges', since it should cover more SCB functions,
4. updated the commit message.

Link to the original change:
* https://lore.kernel.org/linux-arm-kernel/20240627150046.258795-5-piotr.wojtaszczyk@timesys.com/

Signed-off-by: Piotr Wojtaszczyk <piotr.wojtaszczyk@timesys.com>
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>

diff --git a/arch/arm/boot/dts/nxp/lpc/lpc32xx.dtsi b/arch/arm/boot/dts/nxp/lpc/lpc32xx.dtsi
index 5ddaea8c481a73f9dd81d039f7664e645853e712..e44917324aedaa19a26543268899795900283927 100644 (file)
--- a/arch/arm/boot/dts/nxp/lpc/lpc32xx.dtsi
+++ b/arch/arm/boot/dts/nxp/lpc/lpc32xx.dtsi
@@ -308,17 +308,17 @@
                        ranges = <0x20000000 0x20000000 0x30000000>;
 
                        /* System Control Block */
-                       scb {
-                               compatible = "simple-bus";
-                               ranges = <0x0 0x40004000 0x00001000>;
+                       syscon@40004000 {
+                               compatible = "nxp,lpc3220-scb", "syscon", "simple-mfd";
+                               reg = <0x40004000 0x1000>;
                                #address-cells = <1>;
                                #size-cells = <1>;
+                               ranges = <0 0x40004000 0x1000>;
 
                                clk: clock-controller@0 {
                                        compatible = "nxp,lpc3220-clk";
                                        reg = <0x00 0x114>;
                                        #clock-cells = <1>;
-
                                        clocks = <&xtal_32k>, <&xtal>;
                                        clock-names = "xtal_32k", "xtal";
                                };