usb: musb: ignore disconnect on suspend

This still needed, otherwise tusb2.0 won't connect after
a power cycle.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 8f7671cd5fc4ba3bbecb477307c6ea64114dfc2b..75c3013544b6c2b9bacb5705120634aca42ce613 100644 (file)
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -661,7 +661,11 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
                        switch (musb->xceiv.state) {
 #ifdef CONFIG_USB_OTG
                        case OTG_STATE_A_SUSPEND:
-                               musb->ignore_disconnect = 0;
+                               /* We need to ignore disconnect on suspend
+                                * otherwise tusb 2.0 won't reconnect after a
+                                * power cycle, which breaks otg compliance.
+                                */
+                               musb->ignore_disconnect = 1;
                                musb_g_reset(musb);
                                /* FALLTHROUGH */
                        case OTG_STATE_A_WAIT_BCON:     /* OPT TD.4.7-900ms */