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usb: host: xhci-plat: get the usb3 phy for shared_hcd

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This patch tries to get the USB3 PHY using, and associates
the XHCI shared_hcd device with it.

With this patch, the USB HUB core driver can do USB PHY
operations base on USB PHY framework, e.g. call usb_phy_
notify_connect() or usb_phy_notify_disconnect() to notify
USB PHY driver to do soft connect or soft disconnect.

Change-Id: I3b51181b840a68ae477b764013446f49dbf7ca70
Signed-off-by: William Wu <wulf@rock-chips.com>
This commit is contained in:
William Wu
2017-02-21 17:37:58 +08:00
committed by William Wu
parent cdff9a65d9
commit caa12b70cc
1 changed files with 9 additions and 0 deletions
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9
drivers/usb/host/xhci-plat.c
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@@ -311,6 +311,15 @@ static int xhci_plat_probe(struct platform_device *pdev)
hcd->skip_phy_initialization = 1;
}
xhci->shared_hcd->usb_phy = devm_usb_get_phy(sysdev,
USB_PHY_TYPE_USB3);
if (IS_ERR(xhci->shared_hcd->usb_phy)) {
ret = PTR_ERR(xhci->shared_hcd->usb_phy);
if (ret == -EPROBE_DEFER)
goto put_usb3_hcd;
xhci->shared_hcd->usb_phy = NULL;
}
ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
if (ret)
goto disable_usb_phy;