c0090b0169
[ Upstream commit0cfbb589d6] When CONFIG_HAS_IOMEM is not set/enabled, certain iomap() family functions [including ioremap(), devm_ioremap(), etc.] are not available. Drivers that use these functions should depend on HAS_IOMEM so that they do not cause build errors. Rectifies these build errors: s390-linux-ld: drivers/dma/qcom/hidma_mgmt.o: in function `hidma_mgmt_probe': hidma_mgmt.c:(.text+0x780): undefined reference to `devm_ioremap_resource' s390-linux-ld: drivers/dma/qcom/hidma_mgmt.o: in function `hidma_mgmt_init': hidma_mgmt.c:(.init.text+0x126): undefined reference to `of_address_to_resource' s390-linux-ld: hidma_mgmt.c:(.init.text+0x16e): undefined reference to `of_address_to_resource' Fixes:67a2003e06("dmaengine: add Qualcomm Technologies HIDMA channel driver") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: kernel test robot <lkp@intel.com> Cc: Sinan Kaya <okaya@codeaurora.org> Cc: Vinod Koul <vkoul@kernel.org> Cc: dmaengine@vger.kernel.org Link: https://lore.kernel.org/r/20210522021313.16405-3-rdunlap@infradead.org Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
31 lines
1.2 KiB
Text
31 lines
1.2 KiB
Text
# SPDX-License-Identifier: GPL-2.0-only
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config QCOM_BAM_DMA
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tristate "QCOM BAM DMA support"
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depends on ARCH_QCOM || (COMPILE_TEST && OF && ARM)
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select DMA_ENGINE
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select DMA_VIRTUAL_CHANNELS
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help
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Enable support for the QCOM BAM DMA controller. This controller
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provides DMA capabilities for a variety of on-chip devices.
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config QCOM_HIDMA_MGMT
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tristate "Qualcomm Technologies HIDMA Management support"
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depends on HAS_IOMEM
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select DMA_ENGINE
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help
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Enable support for the Qualcomm Technologies HIDMA Management.
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Each DMA device requires one management interface driver
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for basic initialization before QCOM_HIDMA channel driver can
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start managing the channels. In a virtualized environment,
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the guest OS would run QCOM_HIDMA channel driver and the
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host would run the QCOM_HIDMA_MGMT management driver.
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config QCOM_HIDMA
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tristate "Qualcomm Technologies HIDMA Channel support"
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select DMA_ENGINE
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help
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Enable support for the Qualcomm Technologies HIDMA controller.
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The HIDMA controller supports optimized buffer copies
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(user to kernel, kernel to kernel, etc.). It only supports
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memcpy interface. The core is not intended for general
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purpose slave DMA.
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