nfs: disintegrate UAPI for nfs

This is to complete part of the Userspace API (UAPI) disintegration for which
the preparatory patches were pulled recently.  After these patches, userspace
headers will be segregated into:

        include/uapi/linux/.../foo.h

for the userspace interface stuff, and:

        include/linux/.../foo.h

for the strictly kernel internal stuff.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>

1 files changed, 15 insertions, 9 deletions

diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 1083585fad0..f69d029b460 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -273,14 +273,13 @@ static void ci_role_work(struct work_struct *work)
 	struct ci13xxx *ci = container_of(work, struct ci13xxx, work);
 	enum ci_role role = ci_otg_role(ci);
 
-	hw_write(ci, OP_OTGSC, OTGSC_IDIS, OTGSC_IDIS);
-
 	if (role != ci->role) {
 		dev_dbg(ci->dev, "switching from %s to %s\n",
 			ci_role(ci)->name, ci->roles[role]->name);
 
 		ci_role_stop(ci);
 		ci_role_start(ci, role);
+		enable_irq(ci->irq);
 	}
 }
 
@@ -320,17 +319,22 @@ static irqreturn_t ci_irq(int irq, void *data)
 {
 	struct ci13xxx *ci = data;
 	irqreturn_t ret = IRQ_NONE;
+	u32 otgsc = 0;
+
+	if (ci->is_otg)
+		otgsc = hw_read(ci, OP_OTGSC, ~0);
 
-	if (ci->is_otg) {
-		u32 sts = hw_read(ci, OP_OTGSC, ~0);
+	if (ci->role != CI_ROLE_END)
+		ret = ci_role(ci)->irq(ci);
 
-		if (sts & OTGSC_IDIS) {
-			queue_work(ci->wq, &ci->work);
-			ret = IRQ_HANDLED;
-		}
+	if (ci->is_otg && (otgsc & OTGSC_IDIS)) {
+		hw_write(ci, OP_OTGSC, OTGSC_IDIS, OTGSC_IDIS);
+		disable_irq_nosync(ci->irq);
+		queue_work(ci->wq, &ci->work);
+		ret = IRQ_HANDLED;
 	}
 
-	return ci->role == CI_ROLE_END ? ret : ci_role(ci)->irq(ci);
+	return ret;
 }
 
 static DEFINE_IDA(ci_ida);
@@ -462,6 +466,8 @@ 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]