diff options
Diffstat (limited to 'drivers/usb/otg/nop-usb-xceiv.c')
| -rw-r--r-- | drivers/usb/otg/nop-usb-xceiv.c | 25 |
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) { |