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>
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a2c3d6902f
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@ -160,6 +160,8 @@ struct ci13xxx {
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struct ci13xxx_platform_data *platdata;
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int vbus_active;
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/* FIXME: some day, we'll not use global phy */
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bool global_phy;
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struct usb_phy *transceiver;
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struct usb_hcd *hcd;
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};
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@ -419,6 +419,10 @@ static int __devinit ci_hdrc_probe(struct platform_device *pdev)
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ci->dev = dev;
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ci->platdata = dev->platform_data;
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if (ci->platdata->phy)
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ci->transceiver = ci->platdata->phy;
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else
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ci->global_phy = true;
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ret = hw_device_init(ci, base);
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if (ret < 0) {
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@ -117,6 +117,7 @@ static int host_start(struct ci13xxx *ci)
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hcd->has_tt = 1;
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hcd->power_budget = ci->platdata->power_budget;
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hcd->phy = ci->transceiver;
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ehci = hcd_to_ehci(hcd);
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ehci->caps = ci->hw_bank.cap;
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@ -1685,7 +1685,8 @@ static int udc_start(struct ci13xxx *ci)
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ci->gadget.ep0 = &ci->ep0in->ep;
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ci->transceiver = usb_get_phy(USB_PHY_TYPE_USB2);
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if (ci->global_phy)
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ci->transceiver = usb_get_phy(USB_PHY_TYPE_USB2);
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if (ci->platdata->flags & CI13XXX_REQUIRE_TRANSCEIVER) {
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if (ci->transceiver == NULL) {
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@ -1729,7 +1730,8 @@ static int udc_start(struct ci13xxx *ci)
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remove_trans:
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if (!IS_ERR_OR_NULL(ci->transceiver)) {
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otg_set_peripheral(ci->transceiver->otg, &ci->gadget);
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usb_put_phy(ci->transceiver);
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if (ci->global_phy)
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usb_put_phy(ci->transceiver);
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}
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dev_err(dev, "error = %i\n", retval);
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@ -1738,7 +1740,7 @@ remove_dbg:
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unreg_device:
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device_unregister(&ci->gadget.dev);
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put_transceiver:
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if (!IS_ERR_OR_NULL(ci->transceiver))
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if (!IS_ERR_OR_NULL(ci->transceiver) && ci->global_phy)
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usb_put_phy(ci->transceiver);
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free_pools:
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dma_pool_destroy(ci->td_pool);
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@ -1772,7 +1774,8 @@ static void udc_stop(struct ci13xxx *ci)
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if (!IS_ERR_OR_NULL(ci->transceiver)) {
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otg_set_peripheral(ci->transceiver->otg, NULL);
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usb_put_phy(ci->transceiver);
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if (ci->global_phy)
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usb_put_phy(ci->transceiver);
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}
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dbg_remove_files(&ci->gadget.dev);
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device_unregister(&ci->gadget.dev);
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@ -5,12 +5,15 @@
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#ifndef __LINUX_USB_CHIPIDEA_H
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#define __LINUX_USB_CHIPIDEA_H
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#include <linux/usb/otg.h>
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struct ci13xxx;
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struct ci13xxx_platform_data {
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const char *name;
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/* offset of the capability registers */
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uintptr_t capoffset;
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unsigned power_budget;
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struct usb_phy *phy;
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unsigned long flags;
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#define CI13XXX_REGS_SHARED BIT(0)
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#define CI13XXX_REQUIRE_TRANSCEIVER BIT(1)
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