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authorRichard Zhao <richard.zhao@freescale.com>2012-07-07 16:56:46 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-07-09 18:59:23 +0200
commita2c3d6902f6f9916b5376c44baa8c1d08bf92a27 (patch)
tree5148bf5983295422ff66b67a1df66a51b627c790 /drivers/usb/chipidea/udc.c
parentusb: otg: add notify_connect/notify_disconnect callback (diff)
downloadlinux-a2c3d6902f6f9916b5376c44baa8c1d08bf92a27.tar.xz
linux-a2c3d6902f6f9916b5376c44baa8c1d08bf92a27.zip
usb: chipidea: permit driver bindings pass phy pointer
Sometimes, the driver bindings may know what phy they use. For example, when using device tree, the usb controller may have a phandler pointing to usb phy. Signed-off-by: Richard Zhao <richard.zhao@freescale.com> Reviewed-by: Marek Vasut <marex@denx.de> Acked-by: Felipe Balbi <balbi@ti.com> Tested-by: Subodh Nijsure <snijsure@grid-net.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/chipidea/udc.c')
-rw-r--r--drivers/usb/chipidea/udc.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index ba8284e2a237..c7a032a4f0c5 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -1685,7 +1685,8 @@ static int udc_start(struct ci13xxx *ci)
ci->gadget.ep0 = &ci->ep0in->ep;
- ci->transceiver = usb_get_phy(USB_PHY_TYPE_USB2);
+ if (ci->global_phy)
+ ci->transceiver = usb_get_phy(USB_PHY_TYPE_USB2);
if (ci->platdata->flags & CI13XXX_REQUIRE_TRANSCEIVER) {
if (ci->transceiver == NULL) {
@@ -1729,7 +1730,8 @@ static int udc_start(struct ci13xxx *ci)
remove_trans:
if (!IS_ERR_OR_NULL(ci->transceiver)) {
otg_set_peripheral(ci->transceiver->otg, &ci->gadget);
- usb_put_phy(ci->transceiver);
+ if (ci->global_phy)
+ usb_put_phy(ci->transceiver);
}
dev_err(dev, "error = %i\n", retval);
@@ -1738,7 +1740,7 @@ remove_dbg:
unreg_device:
device_unregister(&ci->gadget.dev);
put_transceiver:
- if (!IS_ERR_OR_NULL(ci->transceiver))
+ if (!IS_ERR_OR_NULL(ci->transceiver) && ci->global_phy)
usb_put_phy(ci->transceiver);
free_pools:
dma_pool_destroy(ci->td_pool);
@@ -1772,7 +1774,8 @@ static void udc_stop(struct ci13xxx *ci)
if (!IS_ERR_OR_NULL(ci->transceiver)) {
otg_set_peripheral(ci->transceiver->otg, NULL);
- usb_put_phy(ci->transceiver);
+ if (ci->global_phy)
+ usb_put_phy(ci->transceiver);
}
dbg_remove_files(&ci->gadget.dev);
device_unregister(&ci->gadget.dev);