dsp-kernel: make pm relax vote when process is exiting

If process is exiting and pm wakelock is not released, cpu
can't go to sleep. Relax wakeup source during file_free to
allow cpu to go to sleep.

Change-Id: Ie6161edbd43f1fb11f36fbb8f913ceaf92e89736
Signed-off-by: nishant chaubey <[email protected]>

dsp/adsprpc.c

@@ -3064,6 +3064,24 @@ static inline void fastrpc_pm_awake(struct fastrpc_file *fl, int channel_type)
 		pm_wakeup_ws_event(wake_source, fl->ws_timeout, true);
 }
 
+static inline void fastrpc_pm_relax(struct fastrpc_file *fl, int channel_type)
+{
+	struct fastrpc_apps *me = &gfa;
+	struct wakeup_source *wake_source = NULL;
+
+	if (!fl->wake_enable)
+		return;
+
+	if (channel_type == SECURE_CHANNEL)
+		wake_source = me->wake_source_secure;
+	else if (channel_type == NON_SECURE_CHANNEL)
+		wake_source = me->wake_source;
+
+	ADSPRPC_INFO("done for tgid %d\n", fl->tgid);
+	if (wake_source)
+		__pm_relax(wake_source);
+}
+
 static inline int fastrpc_wait_for_response(struct smq_invoke_ctx *ctx,
 						uint32_t kernel)
 {
@@ -5895,6 +5913,7 @@ skip_dump_wait:
 	} while (lmap);
 	mutex_unlock(&fl->map_mutex);
 	mutex_unlock(&fl->internal_map_mutex);
+	fastrpc_pm_relax(fl, gcinfo[fl->cid].secure);
 
 	if (fl->device && is_driver_closed)
 		device_unregister(&fl->device->dev);