Commit 9134c1fd authored by Stanley Chang's avatar Stanley Chang Committed by Greg Kroah-Hartman
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usb: xhci: plat: Add USB 3.0 phy support 



For Realtek SoC, the usb xhci uses different driver for u2phy and u3phy.
Therefore, add a hook to retrieve the USB 3.0 PHY to XHCI plat.

Signed-off-by: default avatarStanley Chang <stanley_chang@realtek.com>
Link: https://lore.kernel.org/r/20230407060731.20537-1-stanley_chang@realtek.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent f3588ea4

drivers/usb/host/xhci-plat.c

+15 −0
Original line number Diff line number Diff line
@@ -291,6 +291,21 @@ int xhci_plat_probe(struct platform_device *pdev, struct device *sysdev, const s 
			goto dealloc_usb2_hcd;

		}



		xhci->shared_hcd->usb_phy = devm_usb_get_phy_by_phandle(sysdev,

			    "usb-phy", 1);

		if (IS_ERR(xhci->shared_hcd->usb_phy)) {

			if (PTR_ERR(xhci->shared_hcd->usb_phy) != -ENODEV)

				dev_err(sysdev, "%s get usb3phy fail (ret=%d)\n",

					     __func__,

					    (int)PTR_ERR(xhci->shared_hcd->usb_phy));

			xhci->shared_hcd->usb_phy = NULL;

		} else {

			ret = usb_phy_init(xhci->shared_hcd->usb_phy);

			if (ret)

				dev_err(sysdev, "%s init usb3phy fail (ret=%d)\n",

					    __func__, ret);

		}



		xhci->shared_hcd->tpl_support = hcd->tpl_support;

	}