[patch 43/47] powerpc: Add missing reference to coherent_dma_mask
From: Greg KH
Date: Tue Jul 22 2008 - 19:33:08 EST
2.6.25-stable review patch. If anyone has any objections, please let us
know.
------------------
From: Vitaly Bordug <vitb@xxxxxxxxxxxxxxxxxxx>
commit ba0fc709e197415aadd46b9ec208dc4abaa21edd upstream
There is dma_mask in of_device upon of_platform_device_create()
but we don't actually set coherent_dma_mask. This may cause weird
behavior of USB subsystem using of_device USB host drivers.
Signed-off-by: Vitaly Bordug <vitb@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
arch/powerpc/kernel/of_platform.c | 2 ++
1 file changed, 2 insertions(+)
--- a/arch/powerpc/kernel/of_platform.c
+++ b/arch/powerpc/kernel/of_platform.c
@@ -76,6 +76,8 @@ struct of_device* of_platform_device_cre
return NULL;
dev->dma_mask = 0xffffffffUL;
+ dev->dev.coherent_dma_mask = DMA_32BIT_MASK;
+
dev->dev.bus = &of_platform_bus_type;
/* We do not fill the DMA ops for platform devices by default.
--
--
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