linux-kernel - [PATCH] nand,flctl: Add dependency on HAS_IOMEM and HAS

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Message-Id: <1391171947-17638-1-git-send-email-richard@nod.at>
Date:	Fri, 31 Jan 2014 13:39:07 +0100
From:	Richard Weinberger <richard@....at>
To:	computersforpeace@...il.com
Cc:	dwmw2@...radead.org, artem.bityutskiy@...ux.intel.com,
	ezequiel.garcia@...e-electrons.com, pekon@...com,
	jussi.kivilinna@....fi, acourbot@...dia.com, shc_work@...l.ru,
	ivan.khoronzhuk@...com, linux-mtd@...ts.infradead.org,
	linux-kernel@...r.kernel.org, Richard Weinberger <richard@....at>
Subject: [PATCH] nand,flctl: Add dependency on HAS_IOMEM and HAS_DMA

On archs like S390 or um this driver cannot build nor work.
Make it depend on HAS_IOMEM and HAS_DMA to bypass build failures.

drivers/built-in.o: In function `flctl_probe':
drivers/mtd/nand/sh_flctl.c:1097: undefined reference to `devm_ioremap_resource'
drivers/built-in.o: In function `flctl_dma_fifo0_transfer':
drivers/mtd/nand/sh_flctl.c:368: undefined reference to `dma_map_single'
drivers/mtd/nand/sh_flctl.c:407: undefined reference to `dma_unmap_single'

Signed-off-by: Richard Weinberger <richard@....at>
---
 drivers/mtd/nand/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 90ff447..a5bb738 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -459,6 +459,8 @@ config MTD_NAND_MXC
 config MTD_NAND_SH_FLCTL
 	tristate "Support for NAND on Renesas SuperH FLCTL"
 	depends on SUPERH || ARCH_SHMOBILE || COMPILE_TEST
+	depends on HAS_IOMEM
+	depends on HAS_DMA
 	help
 	  Several Renesas SuperH CPU has FLCTL. This option enables support
 	  for NAND Flash using FLCTL.
-- 
1.8.1.4

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