From 01bd2f0f1196ad3a7e6fb2f66551140923452d96 Mon Sep 17 00:00:00 2001
From: Stefan Wahren <stefan.wahren@i2se.com>
Date: Fri, 23 Jun 2017 22:27:25 +0200
Subject: [PATCH] ARM: bcm2835_defconfig: Increase CMA for VC4

The VC4 needs more memory than the default setting:

    cma: cma_alloc: alloc failed, req-size: 4096 pages, ret: -12
    vc4-drm soc:gpu: failed to allocate buffer with size 16777216

So increase the value to 32 MB and fix this issue.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 arch/arm/configs/bcm2835_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/configs/bcm2835_defconfig b/arch/arm/configs/bcm2835_defconfig
index 14bb272..fe06038 100644
--- a/arch/arm/configs/bcm2835_defconfig
+++ b/arch/arm/configs/bcm2835_defconfig
@@ -55,6 +55,7 @@ CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
 # CONFIG_STANDALONE is not set
 CONFIG_DMA_CMA=y
+CONFIG_CMA_SIZE_MBYTES=32
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_SCSI_CONSTANTS=y
-- 
2.7.4