Messages in this thread Patch in this message | | | From | Randy Dunlap <> | Subject | [PATCH 4/4] DMA: XILINX_ZYNQMP_DPDMA depends on HAS_IOMEM | Date | Fri, 21 May 2021 19:13:13 -0700 |
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When CONFIG_HAS_IOMEM is not set/enabled, most 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.
Cures this build error: s390-linux-ld: drivers/dma/xilinx/xilinx_dpdma.o: in function `xilinx_dpdma_probe': xilinx_dpdma.c:(.text+0x336a): undefined reference to `devm_platform_ioremap_resource'
Fixes: 7cbb0c63de3fc ("dmaengine: xilinx: dpdma: Add the Xilinx DisplayPort DMA engine driver") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: kernel test robot <lkp@intel.com> Cc: Vinod Koul <vkoul@kernel.org> CC: dmaengine@vger.kernel.org Cc: Hyun Kwon <hyun.kwon@xilinx.com> Cc: Tejas Upadhyay <tejasu@xilinx.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- drivers/dma/Kconfig | 1 + 1 file changed, 1 insertion(+)
--- linux-next-20210521.orig/drivers/dma/Kconfig +++ linux-next-20210521/drivers/dma/Kconfig @@ -702,6 +702,7 @@ config XILINX_ZYNQMP_DMA config XILINX_ZYNQMP_DPDMA tristate "Xilinx DPDMA Engine" + depends on HAS_IOMEM select DMA_ENGINE select DMA_VIRTUAL_CHANNELS help
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