From 0494d0591604be7e54c240c0d195a34adcf9bbc2 Mon Sep 17 00:00:00 2001
From: Zydrunas Tamosevicius <z.tamosevicius@limemicro.com>
Date: Tue, 12 Jun 2018 00:29:16 +0200
Subject: [PATCH] lms: fix LMS_StartStream() handling for multiple channels

LMS_StartStream() (in LMSDevice::start()) was moved to separate loop. It
is because LMS_SetupStream() would fail for second channel if streaming
has already been started (LMS_StartStream()) for single channel
configuration.

Change-Id: I6704bb92864aa81417507c4ae24a22f41dc529c1
---
 Transceiver52M/device/lms/LMSDevice.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Transceiver52M/device/lms/LMSDevice.cpp b/Transceiver52M/device/lms/LMSDevice.cpp
index 9c74c0aa..ad6f67bc 100644
--- a/Transceiver52M/device/lms/LMSDevice.cpp
+++ b/Transceiver52M/device/lms/LMSDevice.cpp
@@ -205,6 +205,7 @@ bool LMSDevice::start()
 
 	unsigned int i;
 
+	/* configure the channels/streams */
 	for (i=0; i<chans; i++) {
 		if (LMS_EnableChannel(m_lms_dev, LMS_CH_RX, i, true) < 0)
 			return false;
@@ -235,7 +236,11 @@ bool LMSDevice::start()
 
 		if (LMS_SetupStream(m_lms_dev, &m_lms_stream_tx[i]) < 0)
 			return false;
+	}
 
+	/* now start the streams in a second loop, as we can no longer call
+	 * LMS_SetupStream() after LMS_StartStream() of the first stream */
+	for (i = 0; i < chans; i++) {
 		if (LMS_StartStream(&m_lms_stream_rx[i]) < 0)
 			return false;