modules: hal_ambiq: fix cmake warning when no BLE

Added CONFIG_AMBIQ_COMPONENT_USE_BT and CONFIG_SOC_AMBIQ_BT_SUPPORTED
to fix empty zephyr_library() warning when BLE is not needed for compile.
Added CMake message if BT related Ambiq specific Kconfig is overriden for
not supported SoC.

Signed-off-by: Swift Tian <swift.tian@ambiq.com>

drivers/bluetooth/hci/Kconfig

@@ -224,6 +224,7 @@ config BT_AMBIQ_HCI
 	select GPIO if SOC_SERIES_APOLLO4X
 	select CLOCK_CONTROL if SOC_SERIES_APOLLO4X
 	select BT_HCI_SETUP
+	select AMBIQ_COMPONENT_USE_BT
 	help
 	  Supports Ambiq Bluetooth SoC using SPI as the communication protocol.
 	  HCI packets are sent and received as single Byte transfers.

modules/hal_ambiq/Kconfig

@@ -1,78 +1,7 @@
 # SPDX-License-Identifier: Apache-2.0
 #
 # Copyright (c) 2023 Antmicro <www.antmicro.com>
+# Copyright (c) 2025, Ambiq Micro Inc. <www.ambiq.com>
 
-config AMBIQ_HAL
-	bool "Ambiq HAL drivers support"
-	depends on SOC_SERIES_APOLLO4X || SOC_SERIES_APOLLO3X
-	help
-	  Use the Ambiq HAL
-
-if AMBIQ_HAL
-
-config AMBIQ_HAL_USE_ADC
-	bool
-	help
-	  Use the ADC driver from Ambiq HAL
-
-config AMBIQ_HAL_USE_GPIO
-	bool
-	help
-	  Use the GPIO driver from Ambiq HAL
-
-config AMBIQ_HAL_USE_STIMER
-	bool
-	help
-	  Use the STIMER driver from Ambiq HAL
-
-config AMBIQ_HAL_USE_TIMER
-	bool
-	help
-	  Use the TIMER driver from Ambiq HAL
-
-config AMBIQ_HAL_USE_WDT
-	bool
-	help
-	  Use the WDT driver from Ambiq HAL
-
-config AMBIQ_HAL_USE_I2C
-	bool
-	help
-	  Use the I2C driver from Ambiq HAL
-
-config AMBIQ_HAL_USE_SPIC
-	bool
-	help
-	  Use the SPI Controller driver from Ambiq HAL
-
-config AMBIQ_HAL_USE_SPID
-	bool
-	help
-	  Use the SPI Device driver from Ambiq HAL
-
-config AMBIQ_HAL_USE_MSPI
-	bool
-	help
-	  Use the MSPI driver from Ambiq HAL
-
-config AMBIQ_HAL_USE_HWINFO
-	bool
-	help
-	  Use the HWINFO driver from Ambiq HAL
-
-config AMBIQ_HAL_USE_BLEIF
-	bool
-	help
-	  Use the BLEIF driver from Ambiq HAL
-
-config AMBIQ_HAL_USE_ADC
-	bool
-	help
-	  Use the ADC driver from Ambiq HAL
-
-config AMBIQ_HAL_USE_USB
-	bool
-	help
-	  Use the USB driver from Ambiq HAL
-
-endif # AMBIQ_HAL
+rsource "Kconfig.hal"
+rsource "Kconfig.components"

modules/hal_ambiq/Kconfig.components

@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: Apache-2.0
+#
+# Copyright (c) 2023 Antmicro <www.antmicro.com>
+# Copyright (c) 2025, Ambiq Micro Inc. <www.ambiq.com>
+
+config AMBIQ_COMPONENT_USE_BT
+	bool
+	depends on SOC_AMBIQ_BT_SUPPORTED
+	help
+	  Use Bluetooth component from Ambiq

modules/hal_ambiq/Kconfig.hal

@@ -0,0 +1,114 @@
+# SPDX-License-Identifier: Apache-2.0
+#
+# Copyright (c) 2023 Antmicro <www.antmicro.com>
+# Copyright (c) 2025, Ambiq Micro Inc. <www.ambiq.com>
+
+config AMBIQ_HAL
+	bool "Ambiq HAL drivers support"
+	depends on SOC_SERIES_APOLLO3X || SOC_SERIES_APOLLO4X
+	help
+	  Use the Ambiq HAL
+
+if AMBIQ_HAL
+
+config AMBIQ_HAL_USE_ADC
+	bool
+	help
+	  Use the ADC driver from Ambiq HAL
+
+config AMBIQ_HAL_USE_ITM
+	bool
+	help
+	  Use the ITM HAL from Ambiq
+
+config AMBIQ_HAL_USE_TPIU
+	bool
+	help
+	  Use the TPIU HAL from Ambiq
+
+config AMBIQ_HAL_USE_DCU
+	bool
+	help
+	  Use the DCU HAL from Ambiq
+
+config AMBIQ_HAL_USE_GPIO
+	bool
+	help
+	  Use the GPIO driver from Ambiq HAL
+
+config AMBIQ_HAL_USE_STIMER
+	bool
+	help
+	  Use the STIMER driver from Ambiq HAL
+
+config AMBIQ_HAL_USE_TIMER
+	bool
+	help
+	  Use the TIMER driver from Ambiq HAL
+
+config AMBIQ_HAL_USE_WDT
+	bool
+	help
+	  Use the WDT driver from Ambiq HAL
+
+config AMBIQ_HAL_USE_I2C
+	bool
+	help
+	  Use the I2C driver from Ambiq HAL
+
+config AMBIQ_HAL_USE_SPIC
+	bool
+	help
+	  Use the SPI Controller driver from Ambiq HAL
+
+config AMBIQ_HAL_USE_SPID
+	bool
+	help
+	  Use the SPI Device driver from Ambiq HAL
+
+config AMBIQ_HAL_USE_MSPI
+	bool
+	help
+	  Use the MSPI driver from Ambiq HAL
+
+config AMBIQ_HAL_USE_HWINFO
+	bool
+	help
+	  Use the HWINFO driver from Ambiq HAL
+
+config AMBIQ_HAL_USE_BLEIF
+	bool
+	help
+	  Use the BLEIF driver from Ambiq HAL
+
+config AMBIQ_HAL_USE_ADC
+	bool
+	help
+	  Use the ADC driver from Ambiq HAL
+
+config AMBIQ_HAL_USE_USB
+	bool
+	help
+	  Use the USB driver from Ambiq HAL
+
+config AMBIQ_HAL_USE_SDIO
+	bool
+	help
+	  Use the SDIO driver from Ambiq HAL
+
+config AMBIQ_HAL_USE_ADC
+	bool
+	help
+	  Use the ADC driver from Ambiq HAL
+
+config AMBIQ_HAL_USE_DSI
+	bool
+	help
+	  Use the DSI driver from Ambiq HAL
+
+config AMBIQ_HAL_USE_USB
+	bool
+	help
+	  Use the USB driver from Ambiq HAL
+
+endif # AMBIQ_HAL

soc/ambiq/CMakeLists.txt

@@ -5,3 +5,15 @@
 add_subdirectory(${SOC_SERIES})
 
 zephyr_include_directories(.)
+
+if(CONFIG_SOC_AMBIQ_BT_SUPPORTED)
+  if(CONFIG_SOC_APOLLO4P)
+    if(CONFIG_AMBIQ_COMPONENT_USE_BT)
+      message(FATAL_ERROR "AMBIQ_COMPONENT_USE_BT is set to ${CONFIG_AMBIQ_COMPONENT_USE_BT} \
+for not supported SoC ${CONFIG_SOC}")
+    else()
+      message(WARNING "SOC_AMBIQ_BT_SUPPORTED is set to ${CONFIG_SOC_AMBIQ_BT_SUPPORTED} \
+for not supported SoC ${CONFIG_SOC}")
+    endif()
+  endif()
+endif()

soc/ambiq/Kconfig.soc

@@ -8,4 +8,7 @@ config SOC_FAMILY_AMBIQ
 config SOC_FAMILY
 	default "ambiq" if SOC_FAMILY_AMBIQ
 
+config SOC_AMBIQ_BT_SUPPORTED
+	bool
+
 rsource "*/Kconfig.soc"

soc/ambiq/apollo3x/Kconfig.soc

@@ -11,12 +11,14 @@ config SOC_SERIES_APOLLO3X
 config SOC_APOLLO3P_BLUE
 	bool
 	select SOC_SERIES_APOLLO3X
+	select SOC_AMBIQ_BT_SUPPORTED
 	help
 	  Apollo3P Blue
 
 config SOC_APOLLO3_BLUE
 	bool
 	select SOC_SERIES_APOLLO3X
+	select SOC_AMBIQ_BT_SUPPORTED
 	help
 	  Apollo3 Blue
 

soc/ambiq/apollo4x/Kconfig.soc

@@ -18,6 +18,7 @@ config SOC_APOLLO4P
 config SOC_APOLLO4P_BLUE
 	bool
 	select SOC_SERIES_APOLLO4X
+	select SOC_AMBIQ_BT_SUPPORTED
 	help
 	  Apollo4 Blue Plus
 

west.yml

@@ -152,7 +152,7 @@ manifest:
       groups:
         - hal
     - name: hal_ambiq
-      revision: 87a188b91aca22ce3ce7deb4a1cbf7780d784673
+      revision: 77d99efc16c7de7c17e9507693e4e3d8be1a5cb7
       path: modules/hal/ambiq
       groups:
         - hal