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Subject[PATCH 1/2] mailbox: stm32-ipcc: add COMPILE_TEST dependency
This allows compiling the driver on architectures where the hardware is not
available. Most other mailbox drivers support this as well.

Signed-off-by: Martin Kaiser <>

I used this for testing the trivial patch that removes the duplicate error
message. Also, compiling the driver on x86_64 worked without errors.

drivers/mailbox/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mailbox/Kconfig b/drivers/mailbox/Kconfig
index 05b1009e2820..abbf5d67ffa2 100644
--- a/drivers/mailbox/Kconfig
+++ b/drivers/mailbox/Kconfig
@@ -201,7 +201,7 @@ config BCM_FLEXRM_MBOX

config STM32_IPCC
tristate "STM32 IPCC Mailbox"
- depends on MACH_STM32MP157
+ depends on MACH_STM32MP157 || COMPILE_TEST
Mailbox implementation for STMicroelectonics STM32 family chips
with hardware for Inter-Processor Communication Controller (IPCC)
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