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ARM: shmobile: kzm9g: Fix coherent DMA mask

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commit 4f38732385 upstream.

Commit 4dcfa60071 ("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>
This commit is contained in:
Laurent Pinchart
2013-12-16 19:16:08 +01:00
committed by Greg Kroah-Hartman
parent e2a9f5890c
commit a713b10e08
1 changed files with 1 additions and 1 deletions
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2
arch/arm/mach-shmobile/board-kzm9g.c
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@@ -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),
},
};