[PATCH 2/3] riscv: dts: th1520: Add pin controllers

[Yao Zi]

Describe the three pin controllers integrated in TH1520 SoC. Since we
don't have support for clocks in the AON region, a dummy fixed-clock
node is added to supply the pin controller locating in it.

Signed-off-by: Yao Zi <ziyao at disroot.org>
---
 arch/riscv/dts/th1520.dtsi | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/arch/riscv/dts/th1520.dtsi b/arch/riscv/dts/th1520.dtsi
index e773d2e6a80..8306eda5521 100644
--- a/arch/riscv/dts/th1520.dtsi
+++ b/arch/riscv/dts/th1520.dtsi
@@ -128,6 +128,13 @@
 		#clock-cells = <0>;
 	};
 
+	aonsys_clk: clock-73728000 {
+		compatible = "fixed-clock";
+		clock-frequency = <73728000>;
+		clock-output-names = "aonsys_clk";
+		#clock-cells = <0>;
+	};
+
 	soc {
 		compatible = "simple-bus";
 		interrupt-parent = <&plic>;
@@ -259,6 +266,13 @@
 			};
 		};
 
+		padctrl1_apsys: pinctrl at ffe7f3c000 {
+			compatible = "thead,th1520-pinctrl";
+			reg = <0xff 0xe7f3c000 0x0 0x1000>;
+			clocks = <&clk CLK_PADCTRL1>;
+			thead,pad-group = <2>;
+		};
+
 		gpio0: gpio at ffec005000 {
 			compatible = "snps,dw-apb-gpio";
 			reg = <0xff 0xec005000 0x0 0x1000>;
@@ -299,6 +313,13 @@
 			};
 		};
 
+		padctrl0_apsys: pinctrl at ffec007000 {
+			compatible = "thead,th1520-pinctrl";
+			reg = <0xff 0xec007000 0x0 0x1000>;
+			clocks = <&clk CLK_PADCTRL0>;
+			thead,pad-group = <3>;
+		};
+
 		uart2: serial at ffec010000 {
 			compatible = "snps,dw-apb-uart";
 			reg = <0xff 0xec010000 0x0 0x4000>;
@@ -439,6 +460,13 @@
 			};
 		};
 
+		padctrl_aosys: pinctrl at fffff4a000 {
+			compatible = "thead,th1520-pinctrl";
+			reg = <0xff 0xfff4a000 0x0 0x2000>;
+			clocks = <&aonsys_clk>;
+			thead,pad-group = <1>;
+		};
+
 		ao_gpio1: gpio at fffff52000 {
 			compatible = "snps,dw-apb-gpio";
 			reg = <0xff 0xfff52000 0x0 0x1000>;
-- 
2.49.0