diff options
Diffstat (limited to 'drivers/usb/host/xhci-dwc3.c')
-rw-r--r-- | drivers/usb/host/xhci-dwc3.c | 80 |
1 files changed, 62 insertions, 18 deletions
diff --git a/drivers/usb/host/xhci-dwc3.c b/drivers/usb/host/xhci-dwc3.c index 258d1cd00a..1022dd5512 100644 --- a/drivers/usb/host/xhci-dwc3.c +++ b/drivers/usb/host/xhci-dwc3.c @@ -23,6 +23,7 @@ DECLARE_GLOBAL_DATA_PTR; struct xhci_dwc3_platdata { struct phy usb_phy; + struct phy usb3_phy; }; void dwc3_set_mode(struct dwc3 *dwc3_reg, u32 mode) @@ -112,6 +113,50 @@ void dwc3_set_fladj(struct dwc3 *dwc3_reg, u32 val) } #ifdef CONFIG_DM_USB +static int xhci_dwc3_setup_phy(struct udevice *dev, int index, struct phy *phy) +{ + int ret = 0; + + ret = generic_phy_get_by_index(dev, index, phy); + if (ret) { + if (ret != -ENOENT) { + pr_err("Failed to get USB PHY for %s\n", dev->name); + return ret; + } + } else { + ret = generic_phy_init(phy); + if (ret) { + pr_err("Can't init USB PHY for %s\n", dev->name); + return ret; + } + ret = generic_phy_power_on(phy); + if (ret) { + pr_err("Can't power on USB PHY for %s\n", dev->name); + generic_phy_exit(phy); + return ret; + } + } + + return 0; +} + +static int xhci_dwc3_shutdown_phy(struct phy *phy) +{ + int ret = 0; + + if (generic_phy_valid(phy)) { + ret = generic_phy_power_off(phy); + if (ret) + return ret; + + ret = generic_phy_exit(phy); + if (ret) + return ret; + } + + return 0; +} + static int xhci_dwc3_probe(struct udevice *dev) { struct xhci_dwc3_platdata *plat = dev_get_platdata(dev); @@ -125,18 +170,17 @@ static int xhci_dwc3_probe(struct udevice *dev) hcor = (struct xhci_hcor *)((uintptr_t)hccr + HC_LENGTH(xhci_readl(&(hccr)->cr_capbase))); - ret = generic_phy_get_by_index(dev, 0, &plat->usb_phy); + ret = xhci_dwc3_setup_phy(dev, 0, &plat->usb_phy); if (ret) { - if (ret != -ENOENT) { - pr_err("Failed to get USB PHY for %s\n", dev->name); - return ret; - } - } else { - ret = generic_phy_init(&plat->usb_phy); - if (ret) { - pr_err("Can't init USB PHY for %s\n", dev->name); - return ret; - } + pr_err("Failed to setup USB PHY for %s\n", dev->name); + return ret; + } + + ret = xhci_dwc3_setup_phy(dev, 1, &plat->usb3_phy); + if (ret) { + pr_err("Failed to setup USB3 PHY for %s\n", dev->name); + xhci_dwc3_shutdown_phy(&plat->usb_phy); + return ret; } dwc3_reg = (struct dwc3 *)((char *)(hccr) + DWC3_REG_OFFSET); @@ -158,13 +202,13 @@ static int xhci_dwc3_remove(struct udevice *dev) struct xhci_dwc3_platdata *plat = dev_get_platdata(dev); int ret; - if (generic_phy_valid(&plat->usb_phy)) { - ret = generic_phy_exit(&plat->usb_phy); - if (ret) { - pr_err("Can't deinit USB PHY for %s\n", dev->name); - return ret; - } - } + ret = xhci_dwc3_shutdown_phy(&plat->usb_phy); + if (ret) + pr_err("Can't shutdown USB PHY for %s\n", dev->name); + + ret = xhci_dwc3_shutdown_phy(&plat->usb3_phy); + if (ret) + pr_err("Can't shutdown USB3 PHY for %s\n", dev->name); return xhci_deregister(dev); } |