Commit 1d392a7b authored by Jonas Aaberg's avatar Jonas Aaberg Committed by Dan Williams
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DMAENGINE: ste_dma40: no premature stop 



Correct bug that could cause paused channels to stop.

Signed-off-by: default avatarJonas Aaberg <jonas.aberg@stericsson.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@stericsson.com>
Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent 2123a61e

drivers/dma/ste_dma40.c

+4 −1
Original line number Diff line number Diff line
@@ -508,6 +508,7 @@ static int d40_channel_execute_command(struct d40_chan *d40c, 
	void __iomem *active_reg;

	int ret = 0;

	unsigned long flags;

	u32 wmask;



	spin_lock_irqsave(&d40c->base->execmd_lock, flags);
@@ -525,7 +526,9 @@ static int d40_channel_execute_command(struct d40_chan *d40c, 
			goto done;

	}



	writel(command << D40_CHAN_POS(d40c->phy_chan->num), active_reg);

	wmask = 0xffffffff & ~(D40_CHAN_POS_MASK(d40c->phy_chan->num));

	writel(wmask | (command << D40_CHAN_POS(d40c->phy_chan->num)),

	       active_reg);



	if (command == D40_DMA_SUSPEND_REQ) {