dma: sh: add Kconfig

This patch adds Kconfig in the drivers/dma/sh. This patch also adds
a new config "SH_DMAE_BASE" and the "config SH_DMAE" depends on it.
Since some drivers (e.g. sh_mmcif.c) depends on shdma-base.c if
CONFIG_DMA_ENGINE=y, the "config SH_DMAE_BASE" is set as "bool".

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

2 files changed, 19 insertions, 1 deletions

diff --git a/drivers/dma/sh/Kconfig b/drivers/dma/sh/Kconfig
new file mode 100644
index 000000000000..c0f7a3763f3d
--- /dev/null
+++ b/drivers/dma/sh/Kconfig
@@ -0,0 +1,18 @@
+#
+# DMA engine configuration for sh
+#
+
+config SH_DMAE_BASE
+        bool "Renesas SuperH DMA Engine support"
+        depends on (SUPERH && SH_DMA) || (ARM && ARCH_SHMOBILE)
+        depends on !SH_DMA_API
+        default y
+        select DMA_ENGINE
+        help
+          Enable support for the Renesas SuperH DMA controllers.
+
+config SH_DMAE
+        tristate "Renesas SuperH DMAC support"
+        depends on SH_DMAE_BASE
+        help
+          Enable support for the Renesas SuperH DMA controllers.
diff --git a/drivers/dma/sh/Makefile b/drivers/dma/sh/Makefile
index 54ae9572b0ac..eceaf469f5e3 100644
--- a/drivers/dma/sh/Makefile
+++ b/drivers/dma/sh/Makefile
@@ -1,2 +1,2 @@
-obj-$(CONFIG_SH_DMAE) += shdma-base.o
+obj-$(CONFIG_SH_DMAE_BASE) += shdma-base.o
 obj-$(CONFIG_SH_DMAE) += shdma.o