usb: chipidea: set usb otg capabilities

Init and update otg capabilities by DT, set gadget's otg capabilities
accordingly.

Acked-by: Peter Chen <peter.chen@freescale.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Li Jun <jun.li@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 15 insertions, 0 deletions

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;