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path: root/drivers/usb/otg/nop-usb-xceiv.c
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Diffstat (limited to 'drivers/usb/otg/nop-usb-xceiv.c')
-rw-r--r--drivers/usb/otg/nop-usb-xceiv.c25
1 files changed, 10 insertions, 15 deletions
diff --git a/drivers/usb/otg/nop-usb-xceiv.c b/drivers/usb/otg/nop-usb-xceiv.c
index c567168f89af..9ed5ea568679 100644
--- a/drivers/usb/otg/nop-usb-xceiv.c
+++ b/drivers/usb/otg/nop-usb-xceiv.c
@@ -22,8 +22,8 @@
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Current status:
- * this is to add "nop" transceiver for all those phy which is
- * autonomous such as isp1504 etc.
+ * This provides a "nop" transceiver for PHYs which are
+ * autonomous such as isp1504, isp1707, etc.
*/
#include <linux/module.h>
@@ -36,30 +36,25 @@ struct nop_usb_xceiv {
struct device *dev;
};
-static u64 nop_xceiv_dmamask = DMA_BIT_MASK(32);
-
-static struct platform_device nop_xceiv_device = {
- .name = "nop_usb_xceiv",
- .id = -1,
- .dev = {
- .dma_mask = &nop_xceiv_dmamask,
- .coherent_dma_mask = DMA_BIT_MASK(32),
- .platform_data = NULL,
- },
-};
+static struct platform_device *pd;
void usb_nop_xceiv_register(void)
{
- if (platform_device_register(&nop_xceiv_device) < 0) {
+ if (pd)
+ return;
+ pd = platform_device_register_simple("nop_usb_xceiv", -1, NULL, 0);
+ if (!pd) {
printk(KERN_ERR "Unable to register usb nop transceiver\n");
return;
}
}
+EXPORT_SYMBOL(usb_nop_xceiv_register);
void usb_nop_xceiv_unregister(void)
{
- platform_device_unregister(&nop_xceiv_device);
+ platform_device_unregister(pd);
}
+EXPORT_SYMBOL(usb_nop_xceiv_unregister);
static inline struct nop_usb_xceiv *xceiv_to_nop(struct otg_transceiver *x)
{