dmaengine: make QCOM_HIDMA depend 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 QCOM_HIDMA depend on HAS_IOMEM so that it won't be built to
cause below compiling error if PCI is unset.

--------------------------------------------------------
ld: drivers/dma/qcom/hidma.o: in function `hidma_probe':
hidma.c:(.text+0x4b46): undefined reference to `devm_ioremap_resource'
ld: hidma.c:(.text+0x4b9e): undefined reference to `devm_ioremap_resource'
make[1]: *** [scripts/Makefile.vmlinux:35: vmlinux] Error 1
make: *** [Makefile:1264: vmlinux] Error 2

Signed-off-by: Baoquan He <bhe@redhat.com>
Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com>
Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <andersson@kernel.org>
Cc: Konrad Dybcio <konrad.dybcio@linaro.org>
Cc: Vinod Koul <vkoul@kernel.org>
Cc: linux-arm-msm@vger.kernel.org
Cc: dmaengine@vger.kernel.org
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@gmail.com>
Link: https://lore.kernel.org/r/20230506111628.712316-3-bhe@redhat.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/dma/qcom/Kconfig b/drivers/dma/qcom/Kconfig
index 3f926a6..ace75d7 100644 (file)
--- a/drivers/dma/qcom/Kconfig
+++ b/drivers/dma/qcom/Kconfig
@@ -45,6 +45,7 @@ config QCOM_HIDMA_MGMT
 
 config QCOM_HIDMA
        tristate "Qualcomm Technologies HIDMA Channel support"
+       depends on HAS_IOMEM
        select DMA_ENGINE
        help
          Enable support for the Qualcomm Technologies HIDMA controller.