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Date: Fri, 21 Aug 2015 13:34:50 +0800 From: Baolin Wang <baolin.wang@...aro.org> To: balbi@...com Cc: broonie@...nel.org, linus.walleij@...aro.org, linux-kernel@...r.kernel.org, baolin.wang@...aro.org, gregkh@...uxfoundation.org, peter.chen@...escale.com, sojka@...ica.cz, stern@...land.harvard.edu, r.baldyga@...sung.com, yoshihiro.shimoda.uh@...esas.com, linux-usb@...r.kernel.org, device-mainlining@...ts.linuxfoundation.org, sre@...nel.org, dbaryshkov@...il.com, dwmw2@...radead.org, sameo@...ux.intel.com, lee.jones@...aro.org, patches@...nsource.wolfsonmicro.com, linux-pm@...r.kernel.org Subject: [PATCH v4 3/5] gadget: Support for the usb charger framework For supporting the usb charger, it adds the usb_charger_init() and usb_charger_exit() functions for usb charger initialization and exit. Introduce a callback 'get_charger_type' which will implemented by user for usb gadget operations to get the usb charger type. Signed-off-by: Baolin Wang <baolin.wang@...aro.org> --- drivers/usb/gadget/udc/udc-core.c | 8 ++++++++ include/linux/usb/gadget.h | 2 ++ 2 files changed, 10 insertions(+) diff --git a/drivers/usb/gadget/udc/udc-core.c b/drivers/usb/gadget/udc/udc-core.c index 4238fc3..370376e 100644 --- a/drivers/usb/gadget/udc/udc-core.c +++ b/drivers/usb/gadget/udc/udc-core.c @@ -28,6 +28,7 @@ #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> #include <linux/usb.h> +#include <linux/usb/usb_charger.h> /** * struct usb_udc - describes one usb device controller @@ -437,8 +438,14 @@ int usb_add_gadget_udc_release(struct device *parent, struct usb_gadget *gadget, mutex_unlock(&udc_lock); + ret = usb_charger_init(gadget); + if (ret) + goto err5; + return 0; +err5: + device_del(&udc->dev); err4: list_del(&udc->list); mutex_unlock(&udc_lock); @@ -513,6 +520,7 @@ void usb_del_gadget_udc(struct usb_gadget *gadget) kobject_uevent(&udc->dev.kobj, KOBJ_REMOVE); flush_work(&gadget->work); device_unregister(&udc->dev); + usb_charger_exit(gadget); device_unregister(&gadget->dev); } EXPORT_SYMBOL_GPL(usb_del_gadget_udc); diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h index 755e8bc..451ad32 100644 --- a/include/linux/usb/gadget.h +++ b/include/linux/usb/gadget.h @@ -537,6 +537,7 @@ struct usb_gadget_ops { struct usb_ep *(*match_ep)(struct usb_gadget *, struct usb_endpoint_descriptor *, struct usb_ss_ep_comp_descriptor *); + enum usb_charger_type (*get_charger_type)(struct usb_gadget *); }; /** @@ -611,6 +612,7 @@ struct usb_gadget { struct usb_otg_caps *otg_caps; struct raw_notifier_head nh; struct mutex lock; + struct usb_charger *charger; unsigned sg_supported:1; unsigned is_otg:1; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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