dts: bingdings: timer: add sifli,sf32lb-atim

add sifli,sf32lb-atim bingdings

Signed-off-by: Qingsong Gou <[email protected]>

Author: ck-telecom

dts/bindings/timer/sifli,sf32lb-atim.yaml

@@ -0,0 +1,28 @@
+# Copyright (c) 2025, Qingsong Gou <[email protected]>
+# SPDX-License-Identifier: Apache-2.0
+
+description: Sifli SF32LB ATIM
+
+compatible: "sifli,sf32lb-atim"
+
+include: base.yaml
+
+properties:
+  reg:
+    required: true
+
+  interrupts:
+    required: true
+
+  clocks:
+    required: true
+
+  sifli,prescaler:
+    type: int
+    default: 0
+    required: true
+    description: |
+      Counter prescaler from 0 to 65535. default reset value is 'not divided'
+      The clock frequency to the counter is the input frequency divided by (prescaler + 1).
+      For example, if the input clock is 48 MHz and the desired counter clock is 1 MHz,
+      set this property to 47.