linux-kernel - [PATCH v2] mtd: nand: raw: atmel: Add message on DMA usage

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Message-Id: <20240821142006.645306-1-ada@thorsis.com>
Date: Wed, 21 Aug 2024 16:20:05 +0200
From: Alexander Dahl <ada@...rsis.com>
To: linux-mtd@...ts.infradead.org
Cc: Miquel Raynal <miquel.raynal@...tlin.com>,
	Richard Weinberger <richard@....at>,
	Vignesh Raghavendra <vigneshr@...com>,
	Nicolas Ferre <nicolas.ferre@...rochip.com>,
	Alexandre Belloni <alexandre.belloni@...tlin.com>,
	Claudiu Beznea <claudiu.beznea@...on.dev>,
	Kees Cook <kees@...nel.org>,
	Tudor Ambarus <tudor.ambarus@...aro.org>,
	linux-arm-kernel@...ts.infradead.org (moderated list:ARM/Microchip (AT91) SoC support),
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v2] mtd: nand: raw: atmel: Add message on DMA usage

Like for other atmel drivers (serial, crypto, mmc, …), too.

Signed-off-by: Alexander Dahl <ada@...rsis.com>
---

Notes:
    v1 -> v2:
    - make info message conditional (thanks Miquel)

 drivers/mtd/nand/raw/atmel/nand-controller.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/raw/atmel/nand-controller.c b/drivers/mtd/nand/raw/atmel/nand-controller.c
index dc75d50d52e8..f9ccfd02e804 100644
--- a/drivers/mtd/nand/raw/atmel/nand-controller.c
+++ b/drivers/mtd/nand/raw/atmel/nand-controller.c
@@ -2049,7 +2049,10 @@ static int atmel_nand_controller_init(struct atmel_nand_controller *nc,
 		dma_cap_set(DMA_MEMCPY, mask);
 
 		nc->dmac = dma_request_channel(mask, NULL, NULL);
-		if (!nc->dmac)
+		if (nc->dmac)
+			dev_info(nc->dev, "using %s for DMA transfers\n",
+				 dma_chan_name(nc->dmac));
+		else
 			dev_err(nc->dev, "Failed to request DMA channel\n");
 	}
 

base-commit: 47ac09b91befbb6a235ab620c32af719f8208399
-- 
2.39.2