[PATCHv2] dmaengine: ste_dma40: allow COMPILE_TEST

[Rosen Penev]

The driver only uses portable kernel APIs and AMBA bit-field macros from
<linux/amba/bus.h>. Allow building on other architectures via
COMPILE_TEST for wider compile coverage.

Also add missing HAS_IOMEM as COMPILE_TEST also enables configs that
don't necessarily have it.

Signed-off-by: Rosen Penev <rosenp@xxxxxxxxx>
Reviewed-by: Frank Li <Frank.Li@xxxxxxx>
---
 v2: add HAS_IOMEM
 drivers/dma/Kconfig | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index ae6a682c9f76..04a2410d94a4 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -448,7 +448,7 @@ config MOXART_DMA
 	select DMA_VIRTUAL_CHANNELS
 	help
 	  Enable support for the MOXA ART SoC DMA controller.
- 
+
 	  Say Y here if you enabled MMP ADMA, otherwise say N.
 
 config MPC512X_DMA
@@ -559,7 +559,8 @@ config SOPHGO_CV1800B_DMAMUX
 
 config STE_DMA40
 	bool "ST-Ericsson DMA40 support"
-	depends on ARCH_U8500
+	depends on ARCH_U8500 || COMPILE_TEST
+	depends on HAS_IOMEM
 	select DMA_ENGINE
 	select SRAM
 	help
-- 
2.55.0