USB: chipidea: delay 2ms before read ID status at probe time

[~andy/linux] / drivers / usb / chipidea / core.c

diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 1083585fad003ecee9e67ec0c70655f5482e085f..3c3ed77a55bb974853a22ef8e9545465379209dc 100644 (file)
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -462,6 +462,8 @@ static int __devinit ci_hdrc_probe(struct platform_device *pdev)
 
        if (ci->roles[CI_ROLE_HOST] && ci->roles[CI_ROLE_GADGET]) {
                ci->is_otg = true;
+               /* ID pin needs 1ms debouce time, we delay 2ms for safe */
+               mdelay(2);
                ci->role = ci_otg_role(ci);
        } else {
                ci->role = ci->roles[CI_ROLE_HOST]