linux-kernel - [PATCH 12/18] dma: edma: Add channel number to debug prints

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Date:	Thu, 13 Mar 2014 11:18:34 +0200
From:	Peter Ujfalusi <peter.ujfalusi@...com>
To:	<linux-kernel@...r.kernel.org>, <alsa-devel@...a-project.org>,
	<linux-omap@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <dmaengine@...r.kernel.org>
CC:	<davinci-linux-open-source@...ux.davincidsp.com>, <joelf@...com>,
	Mark Brown <broonie@...nel.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Tony Lindgren <tony@...mide.com>, <nsekhar@...com>,
	Jyri Sarha <jsarha@...com>, <mporter@...aro.org>,
	<vinod.koul@...el.com>, <dan.j.williams@...el.com>
Subject: [PATCH 12/18] dma: edma: Add channel number to debug prints

It helps to identify issues if we have some information regarding to the
channel which the event is associated.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...com>
---
 drivers/dma/edma.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
index 07ac5f4eeb56..47abaac7eb18 100644
--- a/drivers/dma/edma.c
+++ b/drivers/dma/edma.c
@@ -185,7 +185,8 @@ static void edma_execute(struct edma_chan *echan)
 	edma_resume(echan->ch_num);
 
 	if (edesc->processed <= MAX_NR_SG) {
-		dev_dbg(dev, "first transfer starting %d\n", echan->ch_num);
+		dev_dbg(dev, "first transfer starting on channel %d\n",
+			echan->ch_num);
 		edma_start(echan->ch_num);
 	}
 
@@ -195,7 +196,7 @@ static void edma_execute(struct edma_chan *echan)
 	 * MAX_NR_SG
 	 */
 	if (echan->missed) {
-		dev_dbg(dev, "missed event in execute detected\n");
+		dev_dbg(dev, "missed event on channel %d\n", echan->ch_num);
 		edma_clean_channel(echan->ch_num);
 		edma_stop(echan->ch_num);
 		edma_start(echan->ch_num);
@@ -732,7 +733,7 @@ static int edma_alloc_chan_resources(struct dma_chan *chan)
 	echan->alloced = true;
 	echan->slot[0] = echan->ch_num;
 
-	dev_dbg(dev, "allocated channel for %u:%u\n",
+	dev_dbg(dev, "allocated channel %d for %u:%u\n", echan->ch_num,
 		EDMA_CTLR(echan->ch_num), EDMA_CHAN_SLOT(echan->ch_num));
 
 	return 0;
-- 
1.9.0

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