dma: Add a Kconfig for legacy DMA
We cannot use the existing DMA config for the MCD driver because it is
not migrated to driver model. In order to move it to drivers/Makefile
we need some sort of option for it. Add a new DMA_LEGACY option, which
also acts as a signal that it should be migrated.
Enable this for devkit3250 which uses CONFIG_DMA_LPC32XX which is not
converted to Kconfig.
For now this is not used in the Makefile. That update happens in a
following patch.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index 1993c1d..e81ae96 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -37,6 +37,7 @@
config TI_EDMA3
bool "TI EDMA3 driver"
+ select DMA_LEGACY
help
Enable the TI EDMA3 driver for DRA7xx and AM43xx evms.
This driver support data transfer between memory
@@ -57,6 +58,15 @@
endif
+config DMA_LEGACY
+ bool "Legacy DMA support"
+ default y if FSLDMAFEC
+ help
+ Enable legacy DMA support. This does not use driver model and should
+ be migrated to the new API.
+
+ It is required for some PowerPC boards.
+
source "drivers/dma/ti/Kconfig"
endmenu # menu "DMA Support"