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ARM: 7481/1: OMAP2+: omap2plus_defconfig: enable OMAP DMA engine
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commit 13f30fc893e4610f67dd7a8b0b67aec02eac1775
Author: Russell King <rmk+kernel@arm.linux.org.uk>
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 exclusively use the DMA engine API.

Unfortunately OMAP MMC and High Speed MMC host drivers don't support poll mode and only works with DMA.

Since omap2plus_defconfig doesn't enable this feature by default, the
following error is happens on an IGEPv2 Rev.C (and probably on most OMAP 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 <javier@dowhile0.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Javier Martinez Canillas authored and Russell King committed Jul 31, 2012
1 parent 04e8c7b commit 89269ef
Showing 1 changed file with 2 additions and 0 deletions.
2 changes: 2 additions & 0 deletions arch/arm/configs/omap2plus_defconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -194,6 +194,8 @@ 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
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