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22 lines
794 B
Diff
22 lines
794 B
Diff
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From fa6d833fecd73b56de962f8538a2cd62bfca59ae Mon Sep 17 00:00:00 2001
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From: Dom Cobley <popcornmix@gmail.com>
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Date: Wed, 6 Jan 2021 18:16:10 +0000
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Subject: [PATCH] bcm2835-dma: Avoid losing CS flags after interrupt
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Signed-off-by: Dom Cobley <popcornmix@gmail.com>
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---
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drivers/dma/bcm2835-dma.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/drivers/dma/bcm2835-dma.c
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+++ b/drivers/dma/bcm2835-dma.c
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@@ -704,7 +704,7 @@ static irqreturn_t bcm2835_dma_callback(
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* if this IRQ handler is threaded.) If the channel is finished, it
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* will remain idle despite the ACTIVE flag being set.
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*/
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- writel(BCM2835_DMA_INT | BCM2835_DMA_ACTIVE,
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+ writel(BCM2835_DMA_INT | BCM2835_DMA_ACTIVE | BCM2835_DMA_CS_FLAGS(c->dreq),
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c->chan_base + BCM2835_DMA_CS);
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d = c->desc;
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