drivers: debug: Add debug driver class

Add a new driver class for drivers related to debugging, such as
trace hardware, performance counters etc.

Signed-off-by: Aksel Skauge Mellbye <aksel.mellbye@silabs.com>

MAINTAINERS.yml

@@ -1340,6 +1340,18 @@ Release Notes:
   labels:
     - "area: DAI"
 
+"Drivers: Debug":
+  status: maintained
+  maintainers:
+    - asmellby
+  collaborators:
+    - nordic-krch
+  files:
+    - drivers/debug/
+    - dts/bindings/debug/
+  labels:
+    - "area: Debugging"
+
 "Drivers: Devmux":
   status: maintained
   maintainers:

drivers/CMakeLists.txt

@@ -31,6 +31,7 @@ add_subdirectory_ifdef(CONFIG_COUNTER counter)
 add_subdirectory_ifdef(CONFIG_CRYPTO crypto)
 add_subdirectory_ifdef(CONFIG_DAC dac)
 add_subdirectory_ifdef(CONFIG_DAI dai)
+add_subdirectory_ifdef(CONFIG_DEBUG_DRIVER debug)
 add_subdirectory_ifdef(CONFIG_DISPLAY display)
 add_subdirectory_ifdef(CONFIG_DMA dma)
 add_subdirectory_ifdef(CONFIG_DP_DRIVER dp)

drivers/Kconfig

@@ -23,6 +23,7 @@ source "drivers/counter/Kconfig"
 source "drivers/crypto/Kconfig"
 source "drivers/dac/Kconfig"
 source "drivers/dai/Kconfig"
+source "drivers/debug/Kconfig"
 source "drivers/disk/Kconfig"
 source "drivers/display/Kconfig"
 source "drivers/dma/Kconfig"

drivers/debug/CMakeLists.txt

@@ -0,0 +1,7 @@
+# Copyright (c) 2025 Silicon Laboratories Inc.
+# SPDX-License-Identifier: Apache-2.0
+
+zephyr_library()
+
+# zephyr-keep-sorted-start
+# zephyr-keep-sorted-stop

drivers/debug/Kconfig

@@ -0,0 +1,24 @@
+# Copyright (c) 2025 Silicon Laboratories Inc.
+# SPDX-License-Identifier: Apache-2.0
+
+menuconfig DEBUG_DRIVER
+	bool "Debug drivers"
+	help
+	  Enable support for debug drivers
+
+if DEBUG_DRIVER
+
+config DEBUG_DRIVER_INIT_PRIORITY
+	int "Initialization priority"
+	default KERNEL_INIT_PRIORITY_DEVICE
+	help
+	  Debug drivers initialization priority.
+
+# zephyr-keep-sorted-start
+# zephyr-keep-sorted-stop
+
+module = DEBUG_DRIVER
+module-str = debug_driver
+source "subsys/logging/Kconfig.template.log_config"
+
+endif