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From e33724530848154c9302a720427bd46bf8a6700c Mon Sep 17 00:00:00 2001
From: Ajay Kumar Gupta <ajay.gupta@ti.com>
Date: Wed, 14 Apr 2010 16:08:37 +0530
Subject: [PATCH 40/45] musb: allow host io without gadget module
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
---
drivers/usb/musb/musb_core.c | 14 +++++++++-----
drivers/usb/musb/musb_gadget.c | 26 --------------------------
2 files changed, 9 insertions(+), 31 deletions(-)
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 7ed7f6a..649b689 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -2101,10 +2101,12 @@ bad_config:
* (We expect the ID pin to be forcibly grounded!!)
* Otherwise, wait till the gadget driver hooks up.
*/
- if (!is_otg_enabled(musb) && is_host_enabled(musb)) {
- MUSB_HST_MODE(musb);
- musb->xceiv->default_a = 1;
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ if (is_host_enabled(musb)) {
+ if (!is_otg_enabled(musb)) {
+ MUSB_HST_MODE(musb);
+ musb->xceiv->default_a = 1;
+ musb->xceiv->state = OTG_STATE_A_IDLE;
+ }
status = usb_add_hcd(musb_to_hcd(musb), -1, 0);
@@ -2115,7 +2117,9 @@ bad_config:
& MUSB_DEVCTL_BDEVICE
? 'B' : 'A'));
- } else /* peripheral is enabled */ {
+ }
+ /* peripheral is enabled */
+ if (is_peripheral_enabled(musb)) {
MUSB_DEV_MODE(musb);
musb->xceiv->default_a = 0;
musb->xceiv->state = OTG_STATE_B_IDLE;
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index c0e2efc..e0a6015 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -1765,24 +1765,6 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver)
otg_set_peripheral(musb->xceiv, &musb->g);
spin_unlock_irqrestore(&musb->lock, flags);
-
- if (is_otg_enabled(musb)) {
- DBG(3, "OTG startup...\n");
-
- /* REVISIT: funcall to other code, which also
- * handles power budgeting ... this way also
- * ensures HdrcStart is indirectly called.
- */
- retval = usb_add_hcd(musb_to_hcd(musb), -1, 0);
- if (retval < 0) {
- DBG(1, "add_hcd failed, %d\n", retval);
- spin_lock_irqsave(&musb->lock, flags);
- otg_set_peripheral(musb->xceiv, NULL);
- musb->gadget_driver = NULL;
- musb->g.dev.driver = NULL;
- spin_unlock_irqrestore(&musb->lock, flags);
- }
- }
}
return retval;
@@ -1878,14 +1860,6 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
retval = -EINVAL;
spin_unlock_irqrestore(&musb->lock, flags);
- if (is_otg_enabled(musb) && retval == 0) {
- usb_remove_hcd(musb_to_hcd(musb));
- /* FIXME we need to be able to register another
- * gadget driver here and have everything work;
- * that currently misbehaves.
- */
- }
-
return retval;
}
EXPORT_SYMBOL(usb_gadget_unregister_driver);
--
1.6.6.1
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