diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/chipidea/core.c | 57 | ||||
| -rw-r--r-- | drivers/usb/chipidea/udc.c | 39 |
2 files changed, 52 insertions, 44 deletions
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index c47a6b46dea3..b20286de1436 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -474,6 +474,33 @@ static void ci_get_otg_capable(struct ci_hdrc *ci) } } +static int ci_usb_phy_init(struct ci_hdrc *ci) +{ + if (ci->platdata->phy) { + ci->transceiver = ci->platdata->phy; + return usb_phy_init(ci->transceiver); + } else { + ci->global_phy = true; + ci->transceiver = usb_get_phy(USB_PHY_TYPE_USB2); + if (IS_ERR(ci->transceiver)) + ci->transceiver = NULL; + + return 0; + } +} + +static void ci_usb_phy_destroy(struct ci_hdrc *ci) +{ + if (!ci->transceiver) + return; + + otg_set_peripheral(ci->transceiver->otg, NULL); + if (ci->global_phy) + usb_put_phy(ci->transceiver); + else + usb_phy_shutdown(ci->transceiver); +} + static int ci_hdrc_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -501,10 +528,6 @@ static int ci_hdrc_probe(struct platform_device *pdev) ci->dev = dev; ci->platdata = dev->platform_data; - if (ci->platdata->phy) - ci->transceiver = ci->platdata->phy; - else - ci->global_phy = true; ret = hw_device_init(ci, base); if (ret < 0) { @@ -512,12 +535,19 @@ static int ci_hdrc_probe(struct platform_device *pdev) return -ENODEV; } + ret = ci_usb_phy_init(ci); + if (ret) { + dev_err(dev, "unable to init phy: %d\n", ret); + return ret; + } + ci->hw_bank.phys = res->start; ci->irq = platform_get_irq(pdev, 0); if (ci->irq < 0) { dev_err(dev, "missing IRQ\n"); - return -ENODEV; + ret = -ENODEV; + goto destroy_phy; } ci_get_otg_capable(ci); @@ -536,11 +566,23 @@ static int ci_hdrc_probe(struct platform_device *pdev) ret = ci_hdrc_gadget_init(ci); if (ret) dev_info(dev, "doesn't support gadget\n"); + if (!ret && ci->transceiver) { + ret = otg_set_peripheral(ci->transceiver->otg, + &ci->gadget); + /* + * If we implement all USB functions using chipidea drivers, + * it doesn't need to call above API, meanwhile, if we only + * use gadget function, calling above API is useless. + */ + if (ret && ret != -ENOTSUPP) + goto destroy_phy; + } } if (!ci->roles[CI_ROLE_HOST] && !ci->roles[CI_ROLE_GADGET]) { dev_err(dev, "no supported roles\n"); - return -ENODEV; + ret = -ENODEV; + goto destroy_phy; } if (ci->is_otg) { @@ -593,6 +635,8 @@ static int ci_hdrc_probe(struct platform_device *pdev) free_irq(ci->irq, ci); stop: ci_role_destroy(ci); +destroy_phy: + ci_usb_phy_destroy(ci); return ret; } @@ -604,6 +648,7 @@ static int ci_hdrc_remove(struct platform_device *pdev) dbg_remove_files(ci); free_irq(ci->irq, ci); ci_role_destroy(ci); + ci_usb_phy_destroy(ci); kfree(ci->hw_bank.regmap); return 0; diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index b157c95f7a36..2bb7d18ef2d5 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -20,7 +20,6 @@ #include <linux/pm_runtime.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> -#include <linux/usb/otg.h> #include <linux/usb/chipidea.h> #include "ci.h" @@ -1790,34 +1789,9 @@ static int udc_start(struct ci_hdrc *ci) ci->gadget.ep0 = &ci->ep0in->ep; - if (ci->global_phy) { - ci->transceiver = usb_get_phy(USB_PHY_TYPE_USB2); - if (IS_ERR(ci->transceiver)) - ci->transceiver = NULL; - } - - if (ci->platdata->flags & CI_HDRC_REQUIRE_TRANSCEIVER) { - if (ci->transceiver == NULL) { - retval = -ENODEV; - goto destroy_eps; - } - } - - if (ci->transceiver) { - retval = otg_set_peripheral(ci->transceiver->otg, - &ci->gadget); - /* - * If we implement all USB functions using chipidea drivers, - * it doesn't need to call above API, meanwhile, if we only - * use gadget function, calling above API is useless. - */ - if (retval && retval != -ENOTSUPP) - goto put_transceiver; - } - retval = usb_add_gadget_udc(dev, &ci->gadget); if (retval) - goto remove_trans; + goto destroy_eps; pm_runtime_no_callbacks(&ci->gadget.dev); pm_runtime_enable(&ci->gadget.dev); @@ -1827,17 +1801,6 @@ static int udc_start(struct ci_hdrc *ci) return retval; -remove_trans: - if (ci->transceiver) { - otg_set_peripheral(ci->transceiver->otg, NULL); - if (ci->global_phy) - usb_put_phy(ci->transceiver); - } - - dev_err(dev, "error = %i\n", retval); -put_transceiver: - if (ci->transceiver && ci->global_phy) - usb_put_phy(ci->transceiver); destroy_eps: destroy_eps(ci); free_pools: |