linux-kernel - [PATCH 6/7] dmaengine: at_xdmac: add a warning message regarding for unpaused channels

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Date:   Tue, 14 Feb 2023 17:18:26 +0200
From:   Claudiu Beznea <claudiu.beznea@...rochip.com>
To:     <ludovic.desroches@...rochip.com>, <tudor.ambarus@...aro.org>,
        <vkoul@...nel.org>, <nicolas.ferre@...rochip.com>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <dmaengine@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>
Subject: [PATCH 6/7] dmaengine: at_xdmac: add a warning message regarding for unpaused channels

Add a warning message on suspend to let the user that there are channels
not paused by their consumers.

Signed-off-by: Claudiu Beznea <claudiu.beznea@...rochip.com>
---
 drivers/dma/at_xdmac.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c
index 96f1b69f8a75..7ff6ca01e0b5 100644
--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -2154,6 +2154,8 @@ static int __maybe_unused atmel_xdmac_suspend(struct device *dev)
 		atchan->save_cc = at_xdmac_chan_read(atchan, AT_XDMAC_CC);
 		if (at_xdmac_chan_is_cyclic(atchan)) {
 			if (!at_xdmac_chan_is_paused(atchan)) {
+				dev_warn(chan2dev(chan), "%s: channel %d not paused\n",
+					 __func__, chan->chan_id);
 				at_xdmac_device_pause_internal(atchan);
 				at_xdmac_runtime_suspend_descriptors(atchan);
 			}
-- 
2.34.1