From: Gregory Herrero <gregory.herrero@xxxxxxxxx>
Correctly update lx_state on gadget connection and disconnection.
When usb cable is disconnected, lx_state must be updated to L3 as
controller could be in power off state.
When usb cable is connected, lx_state must be updated to L0 as
controller is powered.
Signed-off-by: Gregory Herrero <gregory.herrero@xxxxxxxxx>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@xxxxxxxxx>
Tested-by: Robert Baldyga <r.baldyga@xxxxxxxxxxx>
---
drivers/usb/dwc2/gadget.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 2ed9ad8..d1a2656 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -2189,6 +2189,7 @@ void dwc2_hsotg_disconnect(struct dwc2_hsotg *hsotg)
}
call_gadget(hsotg, disconnect);
+ hsotg->lx_state = DWC2_L3;
}
/**
@@ -2415,6 +2416,7 @@ void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg,
mdelay(3);
hsotg->last_rst = jiffies;
+ hsotg->lx_state = DWC2_L0;
}
static void dwc2_hsotg_core_disconnect(struct dwc2_hsotg *hsotg)
@@ -2514,7 +2516,6 @@ irq_retry:
kill_all_requests(hsotg, hsotg->eps_out[0],
-ECONNRESET);
- hsotg->lx_state = DWC2_L0;
dwc2_hsotg_core_init_disconnected(hsotg, true);
}
}
@@ -3205,10 +3206,9 @@ static int dwc2_hsotg_vbus_session(struct usb_gadget *gadget, int is_active)
* If controller is hibernated, it must exit from hibernation
* before being initialized
*/
- if (hsotg->lx_state == DWC2_L2) {
+ if (hsotg->lx_state == DWC2_L2)
dwc2_exit_hibernation(hsotg, false);
- hsotg->lx_state = DWC2_L0;
- }
+
/* Kill any ep0 requests as controller will be reinitialized */
kill_all_requests(hsotg, hsotg->eps_out[0], -ECONNRESET);
dwc2_hsotg_core_init_disconnected(hsotg, false);
--
2.3.3
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