qcacld-3.0: Implement uevent call back for snoc

Platform driver icnss can provide uevent notification like FW
ready & FW crashed. Register the call back for notification and
update driver state for FW crashed indication so that driver
doesn't have to wait for shutdown call back to know FW crashed.

CRs-fixed: 2004309
Change-Id: I48afe8e023107aba8362324e3adabf6d50996b67

core/pld/src/pld_snoc.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2016-2017 The Linux Foundation. All rights reserved.
  *
  * Previously licensed under the ISC license by Qualcomm Atheros, Inc.
  *
@@ -205,8 +205,7 @@ static int pld_snoc_suspend_noirq(struct device *dev)
 		return -EINVAL;
 
 	if (pld_context->ops->suspend_noirq)
-		return pld_context->ops->
-			suspend_noirq(dev, PLD_BUS_TYPE_SNOC);
+		return pld_context->ops->suspend_noirq(dev, PLD_BUS_TYPE_SNOC);
 	return 0;
 }
 
@@ -231,8 +230,35 @@ static int pld_snoc_resume_noirq(struct device *dev)
 		return -EINVAL;
 
 	if (pld_context->ops->resume_noirq)
-		return pld_context->ops->
-			resume_noirq(dev, PLD_BUS_TYPE_SNOC);
+		return pld_context->ops->resume_noirq(dev, PLD_BUS_TYPE_SNOC);
+
+	return 0;
+}
+
+static int pld_snoc_uevent(struct device *dev,
+			   struct icnss_uevent_data *uevent)
+{
+	struct pld_context *pld_context;
+	uint32_t status;
+
+	pld_context = pld_get_global_context();
+	if (!pld_context)
+		return -EINVAL;
+
+	if (!pld_context->ops->update_status)
+		goto out;
+
+	switch (uevent->uevent) {
+	case ICNSS_UEVENT_FW_CRASHED:
+		status = PLD_RECOVERY;
+		break;
+	default:
+		goto out;
+	}
+
+	pld_context->ops->update_status(dev, status);
+
+out:
 	return 0;
 }
 
@@ -247,6 +273,7 @@ struct icnss_driver_ops pld_snoc_ops = {
 	.pm_resume  = pld_snoc_pm_resume,
 	.suspend_noirq = pld_snoc_suspend_noirq,
 	.resume_noirq = pld_snoc_resume_noirq,
+	.uevent = pld_snoc_uevent,
 };
 
 /**