diff options
| author | Roger Quadros <rogerq@ti.com> | 2016-05-02 15:18:57 +0300 |
|---|---|---|
| committer | Peter Chen <peter.chen@nxp.com> | 2016-05-11 15:25:00 +0800 |
| commit | ef073807587887973073e7b9178f6caa1c7d2dfa (patch) | |
| tree | 8302920c39fb567fa432d69bc214dd6fc0b77b9f | |
| parent | 66ece8e1a1ea0d8499792f7a43d7329ea190cb8c (diff) | |
| download | usb-otg-framework.tar.gz | |
usb: host: xhci-plat: Add otg device to platform dataotg-framework
Host controllers that are part of an OTG/dual-role instance
need to somehow pass the OTG controller device information
to the HCD core.
We use platform data to pass the OTG controller device.
Signed-off-by: Roger Quadros <rogerq@ti.com>
| -rw-r--r-- | drivers/usb/host/xhci-plat.c | 35 | ||||
| -rw-r--r-- | include/linux/usb/xhci_pdriver.h | 3 |
2 files changed, 31 insertions, 7 deletions
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 676ea458148b8e..24d030a9dc08be 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -239,11 +239,20 @@ static int xhci_plat_probe(struct platform_device *pdev) goto put_usb3_hcd; } - ret = usb_add_hcd(hcd, irq, IRQF_SHARED); + if (pdata && pdata->otg_dev) + ret = usb_otg_add_hcd(hcd, irq, IRQF_SHARED, pdata->otg_dev); + else + ret = usb_add_hcd(hcd, irq, IRQF_SHARED); + if (ret) goto disable_usb_phy; - ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED); + if (pdata && pdata->otg_dev) + ret = usb_otg_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED, + pdata->otg_dev); + else + ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED); + if (ret) goto dealloc_usb2_hcd; @@ -251,7 +260,10 @@ static int xhci_plat_probe(struct platform_device *pdev) dealloc_usb2_hcd: - usb_remove_hcd(hcd); + if (pdata && pdata->otg_dev) + usb_otg_remove_hcd(hcd); + else + usb_remove_hcd(hcd); disable_usb_phy: usb_phy_shutdown(hcd->usb_phy); @@ -269,16 +281,25 @@ put_hcd: return ret; } -static int xhci_plat_remove(struct platform_device *dev) +static int xhci_plat_remove(struct platform_device *pdev) { - struct usb_hcd *hcd = platform_get_drvdata(dev); + struct usb_hcd *hcd = platform_get_drvdata(pdev); struct xhci_hcd *xhci = hcd_to_xhci(hcd); struct clk *clk = xhci->clk; + struct usb_xhci_pdata *pdata = dev_get_platdata(&pdev->dev); + + if (pdata && pdata->otg_dev) + usb_otg_remove_hcd(xhci->shared_hcd); + else + usb_remove_hcd(xhci->shared_hcd); - usb_remove_hcd(xhci->shared_hcd); usb_phy_shutdown(hcd->usb_phy); - usb_remove_hcd(hcd); + if (pdata && pdata->otg_dev) + usb_otg_remove_hcd(hcd); + else + usb_remove_hcd(hcd); + usb_put_hcd(xhci->shared_hcd); if (!IS_ERR(clk)) diff --git a/include/linux/usb/xhci_pdriver.h b/include/linux/usb/xhci_pdriver.h index 376654b5b0f796..5c68b839eb1ab2 100644 --- a/include/linux/usb/xhci_pdriver.h +++ b/include/linux/usb/xhci_pdriver.h @@ -18,10 +18,13 @@ * * @usb3_lpm_capable: determines if this xhci platform supports USB3 * LPM capability + * @otg_dev: OTG controller device. Only requied if part of + * OTG/dual-role. * */ struct usb_xhci_pdata { unsigned usb3_lpm_capable:1; + struct device *otg_dev; }; #endif /* __USB_CORE_XHCI_PDRIVER_H */ |