From 79742351c89b76ebcf82b73103aed50f98ac2ee4 Mon Sep 17 00:00:00 2001 From: Li Jun Date: Thu, 9 Jul 2015 15:18:45 +0800 Subject: [PATCH] usb: chipidea: set usb otg capabilities Init and update otg capabilities by DT, set gadget's otg capabilities accordingly. Acked-by: Peter Chen Reviewed-by: Roger Quadros Signed-off-by: Li Jun Signed-off-by: Felipe Balbi --- drivers/usb/chipidea/core.c | 15 +++++++++++++++ drivers/usb/chipidea/udc.c | 7 ++++++- include/linux/usb/chipidea.h | 1 + 3 files changed, 22 insertions(+), 1 deletion(-) diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index 74fea4fa41b1..1e6d5f0c18f2 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -560,6 +560,8 @@ static irqreturn_t ci_irq(int irq, void *data) static int ci_get_platdata(struct device *dev, struct ci_hdrc_platform_data *platdata) { + int ret; + if (!platdata->phy_mode) platdata->phy_mode = of_usb_get_phy_mode(dev->of_node); @@ -588,6 +590,19 @@ static int ci_get_platdata(struct device *dev, of_usb_host_tpl_support(dev->of_node); } + if (platdata->dr_mode == USB_DR_MODE_OTG) { + /* We can support HNP and SRP of OTG 2.0 */ + platdata->ci_otg_caps.otg_rev = 0x0200; + platdata->ci_otg_caps.hnp_support = true; + platdata->ci_otg_caps.srp_support = true; + + /* Update otg capabilities by DT properties */ + ret = of_usb_update_otg_caps(dev->of_node, + &platdata->ci_otg_caps); + if (ret) + return ret; + } + if (of_usb_get_maximum_speed(dev->of_node) == USB_SPEED_FULL) platdata->flags |= CI_HDRC_FORCE_FULLSPEED; diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 764f668d45a9..b7cca3e597bf 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -1827,6 +1827,7 @@ static irqreturn_t udc_irq(struct ci_hdrc *ci) static int udc_start(struct ci_hdrc *ci) { struct device *dev = ci->dev; + struct usb_otg_caps *otg_caps = &ci->platdata->ci_otg_caps; int retval = 0; spin_lock_init(&ci->lock); @@ -1834,8 +1835,12 @@ static int udc_start(struct ci_hdrc *ci) ci->gadget.ops = &usb_gadget_ops; ci->gadget.speed = USB_SPEED_UNKNOWN; ci->gadget.max_speed = USB_SPEED_HIGH; - ci->gadget.is_otg = ci->is_otg ? 1 : 0; ci->gadget.name = ci->platdata->name; + ci->gadget.otg_caps = otg_caps; + + if (otg_caps->hnp_support || otg_caps->srp_support || + otg_caps->adp_support) + ci->gadget.is_otg = 1; INIT_LIST_HEAD(&ci->gadget.ep_list); diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h index ab94f78c4dd1..e10cefc721ad 100644 --- a/include/linux/usb/chipidea.h +++ b/include/linux/usb/chipidea.h @@ -34,6 +34,7 @@ struct ci_hdrc_platform_data { #define CI_HDRC_CONTROLLER_STOPPED_EVENT 1 void (*notify_event) (struct ci_hdrc *ci, unsigned event); struct regulator *reg_vbus; + struct usb_otg_caps ci_otg_caps; bool tpl_support; }; -- 2.45.2