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path: root/drivers/amba/bus.c
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Diffstat (limited to 'drivers/amba/bus.c')
-rw-r--r--drivers/amba/bus.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c
index 4a3ac31c07d0..0cf51d57e4ae 100644
--- a/drivers/amba/bus.c
+++ b/drivers/amba/bus.c
@@ -20,6 +20,7 @@
#include <linux/sizes.h>
#include <linux/limits.h>
#include <linux/clk/clk-conf.h>
+#include <linux/platform_device.h>
#include <asm/irq.h>
@@ -193,14 +194,16 @@ static const struct dev_pm_ops amba_pm = {
/*
* Primecells are part of the Advanced Microcontroller Bus Architecture,
* so we call the bus "amba".
+ * DMA configuration for platform and AMBA bus is same. So here we reuse
+ * platform's DMA config routine.
*/
struct bus_type amba_bustype = {
.name = "amba",
.dev_groups = amba_dev_groups,
.match = amba_match,
.uevent = amba_uevent,
+ .dma_configure = platform_dma_configure,
.pm = &amba_pm,
- .force_dma = true,
};
static int __init amba_init(void)
@@ -248,7 +251,7 @@ static int amba_probe(struct device *dev)
break;
ret = dev_pm_domain_attach(dev, true);
- if (ret == -EPROBE_DEFER)
+ if (ret)
break;
ret = amba_get_enable_pclk(pcdev);
@@ -375,7 +378,7 @@ static int amba_device_try_add(struct amba_device *dev, struct resource *parent)
}
ret = dev_pm_domain_attach(&dev->dev, true);
- if (ret == -EPROBE_DEFER) {
+ if (ret) {
iounmap(tmp);
goto err_release;
}