qcacmn: Add dummy functions to bus_ops table for snoc

Use bus ops table to tunnel into dummy implementations for snoc.
Needed to support both pcie and snoc in the same binary.

Change-Id: I11725ed4dfa5dd7b43a4b29236d3caca58fda41f
CRs-Fixed: 986480

hif/src/dispatcher/dummy.c

@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2016 The Linux Foundation. All rights reserved.
+ *
+ * Previously licensed under the ISC license by Qualcomm Atheros, Inc.
+ *
+ *
+ * Permission to use, copy, modify, and/or distribute this software for
+ * any purpose with or without fee is hereby granted, provided that the
+ * above copyright notice and this permission notice appear in all
+ * copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * This file was originally distributed by Qualcomm Atheros, Inc.
+ * under proprietary terms before Copyright ownership was assigned
+ * to the Linux Foundation.
+ */
+
+#include "qdf_types.h"
+#include "dummy.h"
+#include "hif_debug.h"
+
+/**
+ * hif_dummy_bus_prevent_linkdown() - prevent linkdown
+ * @hif_ctx: hif context
+ * @flag: weather to keep the bus alive or not
+ *
+ * Dummy function for busses and platforms that do not support
+ * link down.  This may need to be replaced with a wakelock.
+ */
+void hif_dummy_bus_prevent_linkdown(struct hif_softc *scn, bool flag)
+{
+	HIF_ERROR("wlan: %s pcie power collapse ignored",
+			(flag ? "disable" : "enable"));
+}
+
+/**
+ * hif_reset_soc(): reset soc
+ *
+ * this function resets soc
+ *
+ * @hif_ctx: HIF context
+ *
+ * Return: void
+ */
+/* Function to reset SoC */
+void hif_dummy_reset_soc(struct hif_softc *hif_ctx)
+{
+}
+
+/**
+ * hif_dummy_suspend() - suspend the bus
+ * @hif_ctx: hif context
+ *
+ * dummy for busses that don't need to suspend.
+ *
+ * Return: 0 for success and non-zero for failure
+ */
+int hif_dummy_bus_suspend(struct hif_softc *hif_ctx)
+{
+	return 0;
+}
+
+/**
+ * hif_dummy_resume() - hif resume API
+ *
+ * This function resumes the bus. but snoc doesn't need to resume.
+ * Therefore do nothing.
+ *
+ * Return: 0 for success and non-zero for failure
+ */
+int hif_dummy_bus_resume(struct hif_softc *hif_ctx)
+{
+	return 0;
+}
+
+/**
+ * hif_dummy_target_sleep_state_adjust() - api to adjust state of target
+ * @scn: hif context
+ * @sleep_ok: allow or deny target to go to sleep
+ * @wait_for_it: ensure target has change
+ */
+int hif_dummy_target_sleep_state_adjust(struct hif_softc *scn,
+						bool sleep_ok, bool wait_for_it)
+{
+	return 0;
+}