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authorAjay Kumar Gupta <ajay.gupta@ti.com>2009-02-06 15:02:35 +0300
committerGreg Kroah-Hartman <gregkh@suse.de>2009-03-25 02:20:30 +0300
commitf6d92a05c86754d62eabc84856d2035d0de3ddc3 (patch)
tree1fad2ac626e83f2f15f6d798a8d6ba40637c9113 /include
parent5d1ca6cf7f80644b07c348d6be870ccd8e3a92ed (diff)
downloadlinux-f6d92a05c86754d62eabc84856d2035d0de3ddc3.tar.xz
USB: otg: adding nop usb transceiver
NOP transceiver is used by all the usb transceiver which are mostly autonomous and doesn't require any programming or which are built into the usb ip itself.NOP transceiver only allocates the memory for struct xceiv and calls otg_set_transceiver() so function call to otg_get_transceiver() will return a valid transceiver. NOP transceiver device should be registered by calling usb_nop_xceiv_register() from platform files. Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com> Cc: Felipe Balbi <felipe.balbi@nokia.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include')
-rw-r--r--include/linux/usb/otg.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
index 60a52576fd5c..1aaa826396a1 100644
--- a/include/linux/usb/otg.h
+++ b/include/linux/usb/otg.h
@@ -80,6 +80,10 @@ struct otg_transceiver {
/* for board-specific init logic */
extern int otg_set_transceiver(struct otg_transceiver *);
+#ifdef CONFIG_NOP_USB_XCEIV
+extern void usb_nop_xceiv_register(void);
+extern void usb_nop_xceiv_unregister(void);
+#endif
/* for usb host and peripheral controller drivers */