linux-kernel - [PATCH] dmaengine: dw-axi-dmac: Simplify assignment in dma_chan

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Date:   Tue, 26 Oct 2021 17:56:07 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Eugeniy Paltsev <Eugeniy.Paltsev@...opsys.com>,
        Vinod Koul <vkoul@...nel.org>
Cc:     dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org,
        Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: [PATCH] dmaengine: dw-axi-dmac: Simplify assignment in dma_chan_pause()

Simplify assigning zero and performing a logical OR to a single
assignment.

Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>
---
 drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
index e8c98b16ae991a59..b907f3acf5c1f31e 100644
--- a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
+++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
@@ -1191,9 +1191,8 @@ static int dma_chan_pause(struct dma_chan *dchan)
 			BIT(chan->id) << DMAC_CHAN_SUSP_WE_SHIFT;
 		axi_dma_iowrite32(chan->chip, DMAC_CHEN, val);
 	} else {
-		val = 0;
-		val |= BIT(chan->id) << DMAC_CHAN_SUSP2_SHIFT |
-			BIT(chan->id) << DMAC_CHAN_SUSP2_WE_SHIFT;
+		val = BIT(chan->id) << DMAC_CHAN_SUSP2_SHIFT |
+		      BIT(chan->id) << DMAC_CHAN_SUSP2_WE_SHIFT;
 		axi_dma_iowrite32(chan->chip, DMAC_CHSUSPREG, val);
 	}
 
-- 
2.25.1