applications: nrf_desktop: nrf54h20: disable LTO in the IPC Radio image

Disabled the Link Time Optimization (LTO) for the
nrf54h20dk/nrf54h20/cpurad board target in the IPC Radio image
configuration of the nRF Desktop application. This change is done
to prevent the LTO warnings about the type mismatch
(-Wlto-type-mismatch) in the device_deps.c file, which is
autogenerated if the CONFIG_DEVICE_DEPS Kconfig option is enabled.
This file is required by the Zephyr domain driver to notify child
devices in the domain to turn on or off when the domain itself is
powered up or down.

Ref: NCSDK-35587

Signed-off-by: Kamil Piszczek <[email protected]>

Author: kapi-no

applications/nrf_desktop/configuration/nrf54h20dk_nrf54h20_cpurad/images/ipc_radio/prj.conf

@@ -39,9 +39,13 @@ CONFIG_RESET_ON_FATAL_ERROR=n
 
 CONFIG_SPEED_OPTIMIZATIONS=y
 
-# Activate Link Time Optimization (LTO)
-CONFIG_LTO=y
-CONFIG_ISR_TABLES_LOCAL_DECLARATION=y
+# Temporarily disable Link Time Optimization (LTO) to prevent linker warnings about the type
+# mismatch (-Wlto-type-mismatch) that are caused by the device_deps.c file. The device_deps.c
+# file is autogenerated and its generation is controlled by the CONFIG_DEVICE_DEPS Kconfig option.
+# This file is required by the Zephyr domain driver to notify child devices in the domain to turn
+# on or off when the domain itself is powered up or down.
+CONFIG_LTO=n
+CONFIG_ISR_TABLES_LOCAL_DECLARATION=n
 
 # Enable Zephyr system power management
 CONFIG_PM=y

applications/nrf_desktop/configuration/nrf54h20dk_nrf54h20_cpurad/images/ipc_radio/prj_dongle.conf

@@ -43,9 +43,13 @@ CONFIG_RESET_ON_FATAL_ERROR=n
 
 CONFIG_SPEED_OPTIMIZATIONS=y
 
-# Activate Link Time Optimization (LTO)
-CONFIG_LTO=y
-CONFIG_ISR_TABLES_LOCAL_DECLARATION=y
+# Temporarily disable Link Time Optimization (LTO) to prevent linker warnings about the type
+# mismatch (-Wlto-type-mismatch) that are caused by the device_deps.c file. The device_deps.c
+# file is autogenerated and its generation is controlled by the CONFIG_DEVICE_DEPS Kconfig option.
+# This file is required by the Zephyr domain driver to notify child devices in the domain to turn
+# on or off when the domain itself is powered up or down.
+CONFIG_LTO=n
+CONFIG_ISR_TABLES_LOCAL_DECLARATION=n
 
 # Enable Zephyr system power management
 CONFIG_PM=y

applications/nrf_desktop/configuration/nrf54h20dk_nrf54h20_cpurad/images/ipc_radio/prj_release.conf

@@ -39,9 +39,13 @@ CONFIG_RESET_ON_FATAL_ERROR=y
 
 CONFIG_SPEED_OPTIMIZATIONS=y
 
-# Activate Link Time Optimization (LTO)
-CONFIG_LTO=y
-CONFIG_ISR_TABLES_LOCAL_DECLARATION=y
+# Temporarily disable Link Time Optimization (LTO) to prevent linker warnings about the type
+# mismatch (-Wlto-type-mismatch) that are caused by the device_deps.c file. The device_deps.c
+# file is autogenerated and its generation is controlled by the CONFIG_DEVICE_DEPS Kconfig option.
+# This file is required by the Zephyr domain driver to notify child devices in the domain to turn
+# on or off when the domain itself is powered up or down.
+CONFIG_LTO=n
+CONFIG_ISR_TABLES_LOCAL_DECLARATION=n
 
 # Enable Zephyr system power management
 CONFIG_PM=y

applications/nrf_desktop/configuration/nrf54h20dk_nrf54h20_cpurad/images/ipc_radio/prj_release_dongle.conf

@@ -43,9 +43,13 @@ CONFIG_RESET_ON_FATAL_ERROR=y
 
 CONFIG_SPEED_OPTIMIZATIONS=y
 
-# Activate Link Time Optimization (LTO)
-CONFIG_LTO=y
-CONFIG_ISR_TABLES_LOCAL_DECLARATION=y
+# Temporarily disable Link Time Optimization (LTO) to prevent linker warnings about the type
+# mismatch (-Wlto-type-mismatch) that are caused by the device_deps.c file. The device_deps.c
+# file is autogenerated and its generation is controlled by the CONFIG_DEVICE_DEPS Kconfig option.
+# This file is required by the Zephyr domain driver to notify child devices in the domain to turn
+# on or off when the domain itself is powered up or down.
+CONFIG_LTO=n
+CONFIG_ISR_TABLES_LOCAL_DECLARATION=n
 
 # Enable Zephyr system power management
 CONFIG_PM=y