Looks like this code was ever used. It was added by commit
fe3702054f6412aea04373ceb9d27a4a417ff3f0 "OMAP: Fix USB on Nokia 770"
that can be found from linux-omap history if needed.
Signed-off-by: Jarkko Nikula <jhnikula@xxxxxxxxx>
---
drivers/cbus/tahvo-usb.c | 48 +---------------------------------------------
1 files changed, 1 insertions(+), 47 deletions(-)
diff --git a/drivers/cbus/tahvo-usb.c b/drivers/cbus/tahvo-usb.c
index f6b3c1a..be0333f 100644
--- a/drivers/cbus/tahvo-usb.c
+++ b/drivers/cbus/tahvo-usb.c
@@ -236,47 +236,6 @@ static DEVICE_ATTR(vbus_state, 0444, vbus_state_show, NULL);
int vbus_active = 0;
-#if 0
-
-static int host_suspend(struct tahvo_usb *tu)
-{
- struct device *dev;
-
- if (!tu->otg.host)
- return -ENODEV;
-
- /* Currently ASSUMES only the OTG port matters;
- * other ports could be active...
- */
- dev = tu->otg.host->controller;
- return dev->driver->suspend(dev, PMSG_SUSPEND);
-}
-
-static int host_resume(struct tahvo_usb *tu)
-{
- struct device *dev;
-
- if (!tu->otg.host)
- return -ENODEV;
-
- dev = tu->otg.host->controller;
- return dev->driver->resume(dev);
-}
-
-#else
-
-static int host_suspend(struct tahvo_usb *tu)
-{
- return 0;
-}
-
-static int host_resume(struct tahvo_usb *tu)
-{
- return 0;
-}
-
-#endif
-
static void check_vbus_state(struct tahvo_usb *tu)
{
int reg, prev_state;
@@ -303,7 +262,6 @@ static void check_vbus_state(struct tahvo_usb *tu)
case OTG_STATE_A_IDLE:
/* Session is now valid assuming the USB hub is driving Vbus */
tu->otg.state = OTG_STATE_A_HOST;
- host_resume(tu);
break;
default:
break;
@@ -355,7 +313,6 @@ static void tahvo_usb_become_host(struct tahvo_usb *tu)
static void tahvo_usb_stop_host(struct tahvo_usb *tu)
{
- host_suspend(tu);
tu->otg.state = OTG_STATE_A_IDLE;
}
@@ -403,8 +360,6 @@ static void tahvo_usb_power_off(struct tahvo_usb *tu)
if (tu->otg.gadget)
usb_gadget_vbus_disconnect(tu->otg.gadget);
- host_suspend(tu);
-
/* Disable OTG and interrupts */
if (TAHVO_MODE(tu) == TAHVO_MODE_PERIPHERAL)
id = OTG_ID;
@@ -521,8 +476,7 @@ static int tahvo_usb_set_host(struct otg_transceiver *otg, struct usb_bus *host)
if (TAHVO_MODE(tu) == TAHVO_MODE_HOST) {
tu->otg.host = NULL;
tahvo_usb_become_host(tu);
- } else
- host_suspend(tu);
+ }
tu->otg.host = host;
--
1.7.4.1
--
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