usb: renesas_usbhs: disable attch irq after device attached
attch interrupt might happen infinitely on some USB hub (self power?).
This patch disable attch irq after device attached,
and enable it again when detach irq happen.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/renesas_usbhs/mod_host.c b/drivers/usb/renesas_usbhs/mod_host.c
index 72ee8e5..c947d0a 100644
--- a/drivers/usb/renesas_usbhs/mod_host.c
+++ b/drivers/usb/renesas_usbhs/mod_host.c
@@ -1245,6 +1245,14 @@
usbhsh_port_stat_set(hpriv, USB_PORT_STAT_CONNECTION);
usbhsh_port_stat_set(hpriv, USB_PORT_STAT_C_CONNECTION << 16);
+ /*
+ * attch interrupt might happen infinitely on some device
+ * (on self power USB hub ?)
+ * disable it here.
+ */
+ hpriv->mod.irq_attch = NULL;
+ usbhs_irq_callback_update(priv, &hpriv->mod);
+
return 0;
}
@@ -1259,6 +1267,12 @@
usbhsh_port_stat_clear(hpriv, USB_PORT_STAT_CONNECTION);
usbhsh_port_stat_set(hpriv, USB_PORT_STAT_C_CONNECTION << 16);
+ /*
+ * enable attch interrupt again
+ */
+ hpriv->mod.irq_attch = usbhsh_irq_attch;
+ usbhs_irq_callback_update(priv, &hpriv->mod);
+
return 0;
}