usb: chipidea: add vbus interrupt handler
We add vbus interrupt handler at ci_otg_work, it uses OTGSC_BSV(at otgsc)
to know it is connect or disconnet event.
Meanwhile, we introduce two flags id_event and b_sess_valid_event to
indicate it is an id interrupt or a vbus interrupt.
Tested-by: Marek Vasut <marex@denx.de>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index 24a100d..c70ce38 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -85,8 +85,10 @@
/* interrupt, error, port change, reset, sleep/suspend */
hw_write(ci, OP_USBINTR, ~0,
USBi_UI|USBi_UEI|USBi_PCI|USBi_URI|USBi_SLI);
+ hw_write(ci, OP_USBCMD, USBCMD_RS, USBCMD_RS);
} else {
hw_write(ci, OP_USBINTR, ~0, 0);
+ hw_write(ci, OP_USBCMD, USBCMD_RS, 0);
}
return 0;
}
@@ -1460,6 +1462,7 @@
pm_runtime_get_sync(&_gadget->dev);
hw_device_reset(ci, USBMODE_CM_DC);
hw_device_state(ci, ci->ep0out->qh.dma);
+ dev_dbg(ci->dev, "Connected to host\n");
} else {
hw_device_state(ci, 0);
if (ci->platdata->notify_event)
@@ -1467,6 +1470,7 @@
CI_HDRC_CONTROLLER_STOPPED_EVENT);
_gadget_stop_activity(&ci->gadget);
pm_runtime_put_sync(&_gadget->dev);
+ dev_dbg(ci->dev, "Disconnected from host\n");
}
}
@@ -1822,6 +1826,9 @@
pm_runtime_no_callbacks(&ci->gadget.dev);
pm_runtime_enable(&ci->gadget.dev);
+ /* Update ci->vbus_active */
+ ci_handle_vbus_change(ci);
+
return retval;
remove_trans: