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authorRichard Zhao <richard.zhao@freescale.com>2012-07-07 22:56:46 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-07-09 09:59:23 -0700
commita2c3d6902f6f9916b5376c44baa8c1d08bf92a27 (patch)
tree5148bf5983295422ff66b67a1df66a51b627c790 /drivers/usb
parent526c51382d59144a3704970ab111d668e604a10f (diff)
downloadlinux-stericsson-a2c3d6902f6f9916b5376c44baa8c1d08bf92a27.tar.gz
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')
-rw-r--r--drivers/usb/chipidea/ci.h2
-rw-r--r--drivers/usb/chipidea/core.c4
-rw-r--r--drivers/usb/chipidea/host.c1
-rw-r--r--drivers/usb/chipidea/udc.c11
4 files changed, 14 insertions, 4 deletions
diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h
index 9655e3569d4c..d738603a2757 100644
--- a/drivers/usb/chipidea/ci.h
+++ b/drivers/usb/chipidea/ci.h
@@ -160,6 +160,8 @@ struct ci13xxx {
struct ci13xxx_platform_data *platdata;
int vbus_active;
+ /* FIXME: some day, we'll not use global phy */
+ bool global_phy;
struct usb_phy *transceiver;
struct usb_hcd *hcd;
};
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 39603d7b7916..1083585fad00 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -419,6 +419,10 @@ static int __devinit ci_hdrc_probe(struct platform_device *pdev)
ci->dev = dev;
ci->platdata = dev->platform_data;
+ if (ci->platdata->phy)
+ ci->transceiver = ci->platdata->phy;
+ else
+ ci->global_phy = true;
ret = hw_device_init(ci, base);
if (ret < 0) {
diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
index 4a4fdb8c65f8..ebff9f4f56ec 100644
--- a/drivers/usb/chipidea/host.c
+++ b/drivers/usb/chipidea/host.c
@@ -117,6 +117,7 @@ static int host_start(struct ci13xxx *ci)
hcd->has_tt = 1;
hcd->power_budget = ci->platdata->power_budget;
+ hcd->phy = ci->transceiver;
ehci = hcd_to_ehci(hcd);
ehci->caps = ci->hw_bank.cap;
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);