Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit b6f688ec authored by Joonwoo Park's avatar Joonwoo Park Committed by Michael Bohan
Browse files

arm: add pdev_archdata for dma_mask 



The dma_mask which tells if device is dma capable is not being set by
arm platform device so that set_dma_mask() results in return -EIO always.
Add dma_mask in the platform_device arch data to set it to dma_mask.

Change-Id: Ia0c4ade7731d792b2538f374fffd99f927a6db74
Signed-off-by: default avatarJoonwoo Park <joonwoop@codeaurora.org>
parent b7dbbd5b

arch/arm/include/asm/device.h

+1 −0
Original line number Diff line number Diff line
@@ -25,6 +25,7 @@ struct pdev_archdata { 
#ifdef CONFIG_ARCH_OMAP

	struct omap_device *od;

#endif

	u64 dma_mask;

};



#ifdef CONFIG_ARM_DMA_USE_IOMMU

arch/arm/kernel/setup.c

+7 −0
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ 
#include <linux/bug.h>

#include <linux/compiler.h>

#include <linux/sort.h>

#include <linux/dma-mapping.h>



#include <asm/unified.h>

#include <asm/cp15.h>
@@ -967,3 +968,9 @@ const struct seq_operations cpuinfo_op = { 
	.stop	= c_stop,

	.show	= c_show

};



void arch_setup_pdev_archdata(struct platform_device *pdev)

{

	pdev->archdata.dma_mask = DMA_BIT_MASK(32);

	pdev->dev.dma_mask = &pdev->archdata.dma_mask;

}