diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-05-09 07:47:14 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-05-09 07:58:48 -0300 |
commit | a5cdf7364020a61375af3c8aa23e09181f5c2c6c (patch) | |
tree | 6a7aacf0e34c69ae57200ba59eafda251b3e0e80 /drivers/dma/hsu/hsu.c | |
parent | 394569928e2f17dff4ae367ac700048138e318c7 (diff) |
Linux-libre 4.5.3-gnupck-4.5.3-gnu
Diffstat (limited to 'drivers/dma/hsu/hsu.c')
-rw-r--r-- | drivers/dma/hsu/hsu.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/dma/hsu/hsu.c b/drivers/dma/hsu/hsu.c index eef145edb..025d375fc 100644 --- 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) @@ -254,10 +254,13 @@ static void hsu_dma_issue_pending(struct dma_chan *chan) static size_t hsu_dma_active_desc_size(struct hsu_dma_chan *hsuc) { struct hsu_dma_desc *desc = hsuc->desc; - size_t bytes = desc->length; + size_t bytes = 0; int i; - i = desc->active % HSU_DMA_CHAN_NR_DESC; + for (i = desc->active; i < desc->nents; i++) + bytes += desc->sg[i].len; + + i = HSU_DMA_CHAN_NR_DESC - 1; do { bytes += hsu_chan_readl(hsuc, HSU_CH_DxTSR(i)); } while (--i >= 0); |