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ARM: shmobile: defconfig: Enable CMA for DMA 

To be able to use VIN with larger frame sizes CMA memory are needed for
DMA. If this is not enabled trying to capture large frames can result in
errors such as:

rcar-vin e6ef0000.video: dma_alloc_coherent of size 8388608 failed

A CMA area of 64MB are needed for v4l2-compliance to pass on all formats
on the largest possible frame size of 2048x2048.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Niklas Söderlund 2016-11-18 16:00:45 +01:00 committed by Simon Horman
parent 1682a9c569
commit 77af670a76
1 changed files with 3 additions and 0 deletions
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arch/arm/configs/shmobile_defconfig
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@ -33,6 +33,7 @@ CONFIG_HAVE_ARM_ARCH_TIMER=y
CONFIG_NR_CPUS=8
CONFIG_AEABI=y
CONFIG_HIGHMEM=y
CONFIG_CMA=y
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_ARM_APPENDED_DTB=y
@ -58,6 +59,8 @@ CONFIG_CAN_RCAR=y
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
CONFIG_DMA_CMA=y
CONFIG_CMA_SIZE_MBYTES=64
CONFIG_SIMPLE_PM_BUS=y
CONFIG_MTD=y
CONFIG_MTD_BLOCK=y