[PATCH v2] drivers: fpga: Specify HAS_IOMEM dependency for FPGA_DFL

[David Gow]

Because dfl.c uses the 'devm_ioremap', 'devm_iounmap',
'devm_ioremap_resource', and 'devm_platform_ioremap_resource'
functions, it should depend on HAS_IOMEM.

This fixes make allyesconfig under UML (ARCH=um), which doesn't provide
HAS_IOMEM.

Fixes: 89eb35e810a8 ("fpga: dfl: map feature mmio resources in their own feature drivers")
Signed-off-by: David Gow <davidgow at google.com>
---

Changes since v1:
( https://lore.kernel.org/linux-fpga/20201119082209.3598354-1-davidgow@google.com/ )
- Add Fixes tag

 drivers/fpga/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/fpga/Kconfig b/drivers/fpga/Kconfig
index 7cd5a29fc437..5645226ca3ce 100644
--- a/drivers/fpga/Kconfig
+++ b/drivers/fpga/Kconfig
@@ -142,6 +142,7 @@ config FPGA_DFL
 	tristate "FPGA Device Feature List (DFL) support"
 	select FPGA_BRIDGE
 	select FPGA_REGION
+	depends on HAS_IOMEM
 	help
 	  Device Feature List (DFL) defines a feature list structure that
 	  creates a linked list of feature headers within the MMIO space
-- 
2.29.2.454.gaff20da3a2-goog