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authorLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>2013-12-16 19:16:08 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-01-15 15:28:51 -0800
commita713b10e08e6d9214d506a55c39b9546b8a0840b (patch)
treeddf90e9f85ba79a5138fd7e4d74c7571086cb72f /arch
parente2a9f5890cf777ed26a1d3f693f79992671662a6 (diff)
downloadlinaro-lsk-a713b10e08e6d9214d506a55c39b9546b8a0840b.tar.gz
ARM: shmobile: kzm9g: Fix coherent DMA mask
commit 4f387323853c495ac589210832fad4503f75a0e7 upstream. Commit 4dcfa60071b3d23f0181f27d8519f12e37cefbb9 ("ARM: DMA-API: better handing of DMA masks for coherent allocations") added an additional check to the coherent DMA mask that results in an error when the mask is larger than what dma_addr_t can address. Set the LCDC coherent DMA mask to DMA_BIT_MASK(32) instead of ~0 to fix the problem. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-shmobile/board-kzm9g.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/mach-shmobile/board-kzm9g.c b/arch/arm/mach-shmobile/board-kzm9g.c
index e6b775a10aa..4d610e6ea98 100644
--- a/arch/arm/mach-shmobile/board-kzm9g.c
+++ b/arch/arm/mach-shmobile/board-kzm9g.c
@@ -332,7 +332,7 @@ static struct platform_device lcdc_device = {
.resource = lcdc_resources,
.dev = {
.platform_data = &lcdc_info,
- .coherent_dma_mask = ~0,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
},
};