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DMA-API: amba: get rid of separate dma_mask 

AMBA Primecell devices always treat streaming and coherent DMA exactly
the same, so there's no point in having the masks separated.

Acked-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2013-06-27 10:25:33 +01:00
parent 01edb5e12c
commit 446b2a9380
3 changed files with 1 additions and 10 deletions
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6
drivers/amba/bus.c
View File

@ -552,7 +552,6 @@ amba_aphb_device_add(struct device *parent, const char *name,
if (!dev)
return ERR_PTR(-ENOMEM);
dev->dma_mask = dma_mask;
dev->dev.coherent_dma_mask = dma_mask;
dev->irq[0] = irq1;
dev->irq[1] = irq2;
@ -619,7 +618,7 @@ static void amba_device_initialize(struct amba_device *dev, const char *name)
dev_set_name(&dev->dev, "%s", name);
dev->dev.release = amba_device_release;
dev->dev.bus = &amba_bustype;
dev->dev.dma_mask = &dev->dma_mask;
dev->dev.dma_mask = &dev->dev.coherent_dma_mask;
dev->res.name = dev_name(&dev->dev);
}
@ -663,9 +662,6 @@ int amba_device_register(struct amba_device *dev, struct resource *parent)
amba_device_initialize(dev, dev->dev.init_name);
dev->dev.init_name = NULL;
if (!dev->dev.coherent_dma_mask && dev->dma_mask)
dev_warn(&dev->dev, "coherent dma mask is unset\n");
return amba_device_add(dev, parent);
}

3
drivers/of/platform.c
View File

@ -284,9 +284,6 @@ static struct amba_device *of_amba_device_create(struct device_node *node,
else
of_device_make_bus_id(&dev->dev);
/* setup amba-specific device info */
dev->dma_mask = ~0;
/* Allow the HW Peripheral ID to be overridden */
prop = of_get_property(node, "arm,primecell-periphid", NULL);
if (prop)

2
include/linux/amba/bus.h
View File

@ -30,7 +30,6 @@ struct amba_device {
struct device dev;
struct resource res;
struct clk *pclk;
u64 dma_mask;
unsigned int periphid;
unsigned int irq[AMBA_NR_IRQS];
};
@ -131,7 +130,6 @@ struct amba_device name##_device = { \
struct amba_device name##_device = { \
.dev = __AMBA_DEV(busid, data, ~0ULL), \
.res = DEFINE_RES_MEM(base, SZ_4K), \
.dma_mask = ~0ULL, \
.irq = irqs, \
.periphid = id, \
}