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dmaengine: hsu: correct use of channel status register
[firefly-linux-kernel-4.4.55.git]
/
drivers
/
dma
/
hsu
/
hsu.c
diff --git
a/drivers/dma/hsu/hsu.c
b/drivers/dma/hsu/hsu.c
index 823ad728aecff9b0e2b9810a6aad297bb1bb7d54..efc02b98e6bafe6bc802a530c2e2d508f12dd86d 100644
(file)
--- a/
drivers/dma/hsu/hsu.c
+++ b/
drivers/dma/hsu/hsu.c
@@
-135,7
+135,7
@@
static u32 hsu_dma_chan_get_sr(struct hsu_dma_chan *hsuc)
sr = hsu_chan_readl(hsuc, HSU_CH_SR);
spin_unlock_irqrestore(&hsuc->vchan.lock, flags);
- return sr;
+ return sr
& ~(HSU_CH_SR_DESCE_ANY | HSU_CH_SR_CDESC_ANY)
;
}
irqreturn_t hsu_dma_irq(struct hsu_dma_chip *chip, unsigned short nr)