Unified clock_time subsystem replacing hwtimer/ktime/cputime

components/drivers/Kconfig

@@ -5,7 +5,6 @@ rsource "ipc/Kconfig"
 
 rsource "serial/Kconfig"
 rsource "can/Kconfig"
-rsource "cputime/Kconfig"
 rsource "i2c/Kconfig"
 rsource "phy/Kconfig"
 rsource "misc/Kconfig"
@@ -46,9 +45,8 @@ rsource "pci/Kconfig"
 rsource "pic/Kconfig"
 rsource "pin/Kconfig"
 rsource "pinctrl/Kconfig"
-rsource "ktime/Kconfig"
+rsource "clock_time/Kconfig"
 rsource "clk/Kconfig"
-rsource "hwtimer/Kconfig"
 rsource "usb/Kconfig"
 
 endmenu

components/drivers/clock_time/Kconfig

@@ -0,0 +1,28 @@
+menuconfig RT_USING_CLOCK_TIME
+    bool "Using unified clock_time subsystem"
+    default n
+    help
+        Unified time subsystem that consolidates hwtimer, ktime, and cputime.
+        Provides clock source, clock event, and high-resolution timer support.
+
+if RT_USING_CLOCK_TIME
+
+    config RT_USING_CLOCK_HRTIMER
+        bool "Enable high-resolution timer support"
+        default y
+        help
+            Enable high-resolution software timers built on clock_time devices.
+
+    config RT_USING_CLOCK_CPUTIME
+        bool "Enable CPU time APIs"
+        default y
+        help
+            Enable CPU time measurement and delay APIs.
+
+    config RT_USING_CLOCK_BOOTTIME
+        bool "Enable boottime APIs"
+        default y
+        help
+            Enable system boottime (monotonic time since boot) APIs.
+
+endif