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| author | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2013-12-16 19:16:09 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-01-15 15:27:11 -0800 |
| commit | 925ece07657be96df688f010dbfec851a0306341 (patch) | |
| tree | 85ad677bfb28d1c6333ac9e0dacdff5f806fe967 | |
| parent | 10252aa2278e1d53c420bacdf9ee239784712541 (diff) | |
| download | lwn-925ece07657be96df688f010dbfec851a0306341.tar.gz lwn-925ece07657be96df688f010dbfec851a0306341.zip | |
ARM: shmobile: mackerel: Fix coherent DMA mask
commit b6328a6b7ba57fc84c38248f6f0e387e1170f1a8 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>
| -rw-r--r-- | arch/arm/mach-shmobile/board-mackerel.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/mach-shmobile/board-mackerel.c b/arch/arm/mach-shmobile/board-mackerel.c index 8c6202bb6aeb..9c19b45db36d 100644 --- a/arch/arm/mach-shmobile/board-mackerel.c +++ b/arch/arm/mach-shmobile/board-mackerel.c @@ -422,7 +422,7 @@ 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), }, }; @@ -498,7 +498,7 @@ static struct platform_device hdmi_lcdc_device = { .id = 1, .dev = { .platform_data = &hdmi_lcdc_info, - .coherent_dma_mask = ~0, + .coherent_dma_mask = DMA_BIT_MASK(32), }, }; |