From: Dom Cobley <popcornmix@gmail.com>
Date: Wed, 6 Jan 2021 18:16:10 +0000 (+0000)
Subject: bcm2835-dma: Avoid losing CS flags after interrupt
X-Git-Tag: accepted/tizen/unified/20230118.172025~1236
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5705c846d4e6b8cb5edc85310056bbe2cde1f3aa;p=platform%2Fkernel%2Flinux-rpi.git

bcm2835-dma: Avoid losing CS flags after interrupt

Signed-off-by: Dom Cobley <popcornmix@gmail.com>
---

diff --git a/drivers/dma/bcm2835-dma.c b/drivers/dma/bcm2835-dma.c
index 0cbfa9d559a2..9878d1bed589 100644
--- a/drivers/dma/bcm2835-dma.c
+++ b/drivers/dma/bcm2835-dma.c
@@ -704,7 +704,7 @@ static irqreturn_t bcm2835_dma_callback(int irq, void *data)
 	 * if this IRQ handler is threaded.) If the channel is finished, it
 	 * will remain idle despite the ACTIVE flag being set.
 	 */
-	writel(BCM2835_DMA_INT | BCM2835_DMA_ACTIVE,
+	writel(BCM2835_DMA_INT | BCM2835_DMA_ACTIVE | BCM2835_DMA_CS_FLAGS(c->dreq),
 	       c->chan_base + BCM2835_DMA_CS);
 
 	d = c->desc;