diff options
Diffstat (limited to 'drivers/usb/chipidea/core.c')
-rw-r--r-- | drivers/usb/chipidea/core.c | 38 |
1 files changed, 29 insertions, 9 deletions
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index 939c6ad71068..dee22d8effda 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -851,7 +851,7 @@ static inline void ci_role_destroy(struct ci_hdrc *ci) { ci_hdrc_gadget_destroy(ci); ci_hdrc_host_destroy(ci); - if (ci->is_otg) + if (ci->is_otg && ci->roles[CI_ROLE_GADGET]) ci_hdrc_otg_destroy(ci); } @@ -913,8 +913,15 @@ static int ci_hdrc_probe(struct platform_device *pdev) } else if (ci->platdata->usb_phy) { ci->usb_phy = ci->platdata->usb_phy; } else { + ci->usb_phy = devm_usb_get_phy_by_phandle(dev->parent, "phys", + 0); ci->phy = devm_phy_get(dev->parent, "usb-phy"); - ci->usb_phy = devm_usb_get_phy(dev->parent, USB_PHY_TYPE_USB2); + + /* Fallback to grabbing any registered USB2 PHY */ + if (IS_ERR(ci->usb_phy) && + PTR_ERR(ci->usb_phy) != -EPROBE_DEFER) + ci->usb_phy = devm_usb_get_phy(dev->parent, + USB_PHY_TYPE_USB2); /* if both generic PHY and USB PHY layers aren't enabled */ if (PTR_ERR(ci->phy) == -ENOSYS && @@ -951,27 +958,35 @@ static int ci_hdrc_probe(struct platform_device *pdev) /* initialize role(s) before the interrupt is requested */ if (dr_mode == USB_DR_MODE_OTG || dr_mode == USB_DR_MODE_HOST) { ret = ci_hdrc_host_init(ci); - if (ret) - dev_info(dev, "doesn't support host\n"); + if (ret) { + if (ret == -ENXIO) + dev_info(dev, "doesn't support host\n"); + else + goto deinit_phy; + } } if (dr_mode == USB_DR_MODE_OTG || dr_mode == USB_DR_MODE_PERIPHERAL) { ret = ci_hdrc_gadget_init(ci); - if (ret) - dev_info(dev, "doesn't support gadget\n"); + if (ret) { + if (ret == -ENXIO) + dev_info(dev, "doesn't support gadget\n"); + else + goto deinit_host; + } } if (!ci->roles[CI_ROLE_HOST] && !ci->roles[CI_ROLE_GADGET]) { dev_err(dev, "no supported roles\n"); ret = -ENODEV; - goto deinit_phy; + goto deinit_gadget; } if (ci->is_otg && ci->roles[CI_ROLE_GADGET]) { ret = ci_hdrc_otg_init(ci); if (ret) { dev_err(dev, "init otg fails, ret = %d\n", ret); - goto stop; + goto deinit_gadget; } } @@ -1036,7 +1051,12 @@ static int ci_hdrc_probe(struct platform_device *pdev) ci_extcon_unregister(ci); stop: - ci_role_destroy(ci); + if (ci->is_otg && ci->roles[CI_ROLE_GADGET]) + ci_hdrc_otg_destroy(ci); +deinit_gadget: + ci_hdrc_gadget_destroy(ci); +deinit_host: + ci_hdrc_host_destroy(ci); deinit_phy: ci_usb_phy_exit(ci); |