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path: root/drivers/usb/musb/musbhsdma.c
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Diffstat (limited to 'drivers/usb/musb/musbhsdma.c')
-rw-r--r--drivers/usb/musb/musbhsdma.c17
1 files changed, 2 insertions, 15 deletions
diff --git a/drivers/usb/musb/musbhsdma.c b/drivers/usb/musb/musbhsdma.c
index 3d1fd52a15a9..e8e9f9aab203 100644
--- a/drivers/usb/musb/musbhsdma.c
+++ b/drivers/usb/musb/musbhsdma.c
@@ -37,18 +37,10 @@
#include "musb_core.h"
#include "musbhsdma.h"
-static int dma_controller_start(struct dma_controller *c)
-{
- /* nothing to do */
- return 0;
-}
-
static void dma_channel_release(struct dma_channel *channel);
-static int dma_controller_stop(struct dma_controller *c)
+static void dma_controller_stop(struct musb_dma_controller *controller)
{
- struct musb_dma_controller *controller = container_of(c,
- struct musb_dma_controller, controller);
struct musb *musb = controller->private_data;
struct dma_channel *channel;
u8 bit;
@@ -67,8 +59,6 @@ static int dma_controller_stop(struct dma_controller *c)
}
}
}
-
- return 0;
}
static struct dma_channel *dma_channel_allocate(struct dma_controller *c,
@@ -371,8 +361,7 @@ void dma_controller_destroy(struct dma_controller *c)
struct musb_dma_controller *controller = container_of(c,
struct musb_dma_controller, controller);
- if (!controller)
- return;
+ dma_controller_stop(controller);
if (controller->irq)
free_irq(controller->irq, c);
@@ -400,8 +389,6 @@ struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *ba
controller->private_data = musb;
controller->base = base;
- controller->controller.start = dma_controller_start;
- controller->controller.stop = dma_controller_stop;
controller->controller.channel_alloc = dma_channel_allocate;
controller->controller.channel_release = dma_channel_release;
controller->controller.channel_program = dma_channel_program;