iommu: SUN50I_IOMMU should depend on HAS_DMA
If NO_DMA=y (e.g. Sun-3 all{mod,yes}-config):
drivers/iommu/dma-iommu.o: In function `iommu_dma_mmap':
dma-iommu.c:(.text+0x92e): undefined reference to `dma_pgprot'
IOMMU_DMA must not be selected, unless HAS_DMA=y.
Hence fix this by making SUN50I_IOMMU depend on HAS_DMA.
Fixes: 4100b8c229
("iommu: Add Allwinner H6 IOMMU driver")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20200629121146.24011-1-geert@linux-m68k.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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@ -305,6 +305,7 @@ config ROCKCHIP_IOMMU
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config SUN50I_IOMMU
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bool "Allwinner H6 IOMMU Support"
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depends on HAS_DMA
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depends on ARCH_SUNXI || COMPILE_TEST
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select ARM_DMA_USE_IOMMU
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select IOMMU_API
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