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authorLinus Walleij <linus.walleij@linaro.org>2012-04-03 14:58:42 +0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2012-04-19 22:31:33 +0400
commit6026aa907b16677d32593c5b7dea134380f51f7f (patch)
tree89506b4f6d409e498886410bbf4f8518fb6a1d63 /drivers
parente816b57a337ea3b755de72bec38c10c864f23015 (diff)
downloadlinux-6026aa907b16677d32593c5b7dea134380f51f7f.tar.xz
ARM: 7369/1: amba: add functions to add devices dynamically
Add two functions to add APB and AHB devices to the amba (PrimeCell) bus dynamically. This is modeled after the static definition macros recently introduced into <linux/amba/bus.h> and can help us in factoring out a bunch of code across the kernel. Since a lot of call sites seem to be using a returned struct amba device* pointer, let's use that. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/amba/bus.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c
index cc273226dbd0..9469d8722038 100644
--- a/drivers/amba/bus.c
+++ b/drivers/amba/bus.c
@@ -543,6 +543,55 @@ int amba_device_add(struct amba_device *dev, struct resource *parent)
}
EXPORT_SYMBOL_GPL(amba_device_add);
+static struct amba_device *
+amba_aphb_device_add(struct device *parent, const char *name,
+ resource_size_t base, size_t size, int irq1, int irq2,
+ void *pdata, unsigned int periphid, u64 dma_mask)
+{
+ struct amba_device *dev;
+ int ret;
+
+ dev = amba_device_alloc(name, base, size);
+ 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;
+ dev->periphid = periphid;
+ dev->dev.platform_data = pdata;
+ dev->dev.parent = parent;
+
+ ret = amba_device_add(dev, &iomem_resource);
+ if (ret) {
+ amba_device_put(dev);
+ return ERR_PTR(ret);
+ }
+
+ return dev;
+}
+
+struct amba_device *
+amba_apb_device_add(struct device *parent, const char *name,
+ resource_size_t base, size_t size, int irq1, int irq2,
+ void *pdata, unsigned int periphid)
+{
+ return amba_aphb_device_add(parent, name, base, size, irq1, irq2, pdata,
+ periphid, 0);
+}
+EXPORT_SYMBOL_GPL(amba_apb_device_add);
+
+struct amba_device *
+amba_ahb_device_add(struct device *parent, const char *name,
+ resource_size_t base, size_t size, int irq1, int irq2,
+ void *pdata, unsigned int periphid)
+{
+ return amba_aphb_device_add(parent, name, base, size, irq1, irq2, pdata,
+ periphid, ~0ULL);
+}
+EXPORT_SYMBOL_GPL(amba_ahb_device_add);
+
static void amba_device_initialize(struct amba_device *dev, const char *name)
{
device_initialize(&dev->dev);