[PATCH 1/1] ARM: OMAP2+: omap2plus_defconfig: enable OMAP DMA engine support
From: Kevin Hilman <hidden>
Date: 2012-07-16 17:12:28
Also in:
linux-omap
Javier Martinez Canillas [off-list ref] writes:
commit 13f30fc893e4610f67dd7a8b0b67aec02eac1775
Author: Russell King [off-list ref]
Date: Sat Apr 21 22:41:10 2012 +0100
mmc: omap: remove private DMA API implementation
removed the private DMA API implementation from the OMAP mmc host to
make it use exclusively the DMA engine API.
Unfortunately the omap2plus_defconfig doesn't enable this feature
leading to the following error on an IGEPv2 Rev.C (and probably on most
boards with MMC support):Personally, I'd rather see this fixed by having the drivers that depend on DMA engine 'select DMADEVICES'. That way, any defconfig will work correctly instead of just omap2plus_defconfig. Kevin
quoted hunk
[ 2.199981] omap_hsmmc omap_hsmmc.1: unable to obtain RX DMA engine channel 48 [ 2.215087] omap_hsmmc omap_hsmmc.0: unable to obtain RX DMA engine channel 62 Signed-off-by: Javier Martinez Canillas <javier@dowhile0.org> --- arch/arm/configs/omap2plus_defconfig | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig index b152de7..e58edc3 100644 --- a/arch/arm/configs/omap2plus_defconfig +++ b/arch/arm/configs/omap2plus_defconfig@@ -193,6 +193,8 @@ CONFIG_MMC_OMAP_HS=y CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_TWL92330=y CONFIG_RTC_DRV_TWL4030=y +CONFIG_DMADEVICES=y +CONFIG_DMA_OMAP=y CONFIG_EXT2_FS=y CONFIG_EXT3_FS=y # CONFIG_EXT3_FS_XATTR is not set