From mboxrd@z Thu Jan 1 00:00:00 1970 From: maxime.ripard@free-electrons.com (Maxime Ripard) Date: Mon, 19 Jan 2015 14:01:13 +0100 Subject: [PATCH v2 2/3] usb: xhci: plat: Add USB phy support In-Reply-To: <1421672474-2945-1-git-send-email-maxime.ripard@free-electrons.com> References: <1421672474-2945-1-git-send-email-maxime.ripard@free-electrons.com> Message-ID: <1421672474-2945-3-git-send-email-maxime.ripard@free-electrons.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org The Marvell Armada 385 AP needs a dumb phy in order to enable the USB3 VBUS. Add a call to retrieve a USB PHY to XHCI plat in order to support this. Signed-off-by: Maxime Ripard --- drivers/usb/host/xhci-plat.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 0e11d61408ff..783e819139a7 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include @@ -155,12 +156,27 @@ static int xhci_plat_probe(struct platform_device *pdev) if (HCC_MAX_PSA(xhci->hcc_params) >= 4) xhci->shared_hcd->can_do_streams = 1; + hcd->usb_phy = devm_usb_get_phy_by_phandle(&pdev->dev, "usb-phy", 0); + if (IS_ERR(hcd->usb_phy)) { + ret = PTR_ERR(hcd->usb_phy); + if (ret == -EPROBE_DEFER) + goto put_usb3_hcd; + hcd->usb_phy = NULL; + } else { + ret = usb_phy_init(hcd->usb_phy); + if (ret) + goto put_usb3_hcd; + } + ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED); if (ret) - goto put_usb3_hcd; + goto disable_usb_phy; return 0; +disable_usb_phy: + usb_phy_shutdown(hcd->usb_phy); + put_usb3_hcd: usb_put_hcd(xhci->shared_hcd); @@ -184,6 +200,7 @@ static int xhci_plat_remove(struct platform_device *dev) struct clk *clk = xhci->clk; usb_remove_hcd(xhci->shared_hcd); + usb_phy_shutdown(hcd->usb_phy); usb_put_hcd(xhci->shared_hcd); usb_remove_hcd(hcd); -- 2.2.2