idmaengine: make FSL_EDMA and INTEL_IDMA64 depends on HAS_IOMEM

On s390 systems (aka mainframes), it has classic channel devices for
networking and permanent storage that are currently even more common
than PCI devices. Hence it could have a fully functional s390 kernel
with CONFIG_PCI=n, then the relevant iomem mapping functions
[including ioremap(), devm_ioremap(), etc.] are not available.

Here let FSL_EDMA and INTEL_IDMA64 depend on HAS_IOMEM so that it
won't be built to cause below compiling error if PCI is unset.

--------
ERROR: modpost: "devm_platform_ioremap_resource" [drivers/dma/fsl-edma.ko] undefined!
ERROR: modpost: "devm_platform_ioremap_resource" [drivers/dma/idma64.ko] undefined!
--------

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202306211329.ticOJCSv-lkp@intel.com/
Signed-off-by: Baoquan He <bhe@redhat.com>
Cc: Vinod Koul <vkoul@kernel.org>
Cc: dmaengine@vger.kernel.org
Link: https://lore.kernel.org/r/20230707135852.24292-2-bhe@redhat.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index 644c188d6a1103ebf6877337dc418fbffe7ea754..08fdd0e2ed1bf01a4be5baf462fabb32dd5b88d3 100644 (file)
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -211,6 +211,7 @@ config FSL_DMA
 config FSL_EDMA
        tristate "Freescale eDMA engine support"
        depends on OF
+       depends on HAS_IOMEM
        select DMA_ENGINE
        select DMA_VIRTUAL_CHANNELS
        help
@@ -280,6 +281,7 @@ config IMX_SDMA
 
 config INTEL_IDMA64
        tristate "Intel integrated DMA 64-bit support"
+       depends on HAS_IOMEM
        select DMA_ENGINE
        select DMA_VIRTUAL_CHANNELS
        help