ARM: OMAP2+: omap2plus_defconfig: enable OMAP DMA engine support

commit 13f30fc893e4610f67dd7a8b0b67aec02eac1775

Author: Russell King <[email protected]>
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):

[    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 <[email protected]>

---
 arch/arm/configs/omap2plus_defconfig |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

arch/arm/configs/omap2plus_defconfig +2 -0

index b152de7..e58edc3 100644
@@ -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

Quoted 4 lines · Javier Martinez Canillas

commit 13f30fc893e4610f67dd7a8b0b67aec02eac1775

Author: Russell King <[email protected]>
Date:   Sat Apr 21 22:41:10 2012 +0100

Quoted 8 lines

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 19 lines · Kevin Hilman

Quoted 4 lines · Javier Martinez Canillas

commit 13f30fc893e4610f67dd7a8b0b67aec02eac1775

Author: Russell King <[email protected]>
Date:   Sat Apr 21 22:41:10 2012 +0100

Quoted 8 lines

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.

Quoted 2 lines

Kevin

Hi Kevin,

Thanks a lot for your feedback. I'll do what you suggest and send a v2 of the patch.