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Merge branch 'fix/hsu' into fixes

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This commit is contained in:
Vinod Koul 2016-04-16 22:44:32 +05:30
commit 09c505ced3
2 changed files with 11 additions and 5 deletions
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13
drivers/dma/hsu/hsu.c
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@ -64,10 +64,10 @@ static void hsu_dma_chan_start(struct hsu_dma_chan *hsuc)
if (hsuc->direction == DMA_MEM_TO_DEV) {
bsr = config->dst_maxburst;
mtsr = config->dst_addr_width;
mtsr = config->src_addr_width;
} else if (hsuc->direction == DMA_DEV_TO_MEM) {
bsr = config->src_maxburst;
mtsr = config->src_addr_width;
mtsr = config->dst_addr_width;
}
hsu_chan_disable(hsuc);
@ -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);

3
drivers/dma/hsu/hsu.h
View file

@ -41,6 +41,9 @@
#define HSU_CH_SR_DESCTO(x) BIT(8 + (x))
#define HSU_CH_SR_DESCTO_ANY (BIT(11) | BIT(10) | BIT(9) | BIT(8))
#define HSU_CH_SR_CHE BIT(15)
#define HSU_CH_SR_DESCE(x) BIT(16 + (x))
#define HSU_CH_SR_DESCE_ANY (BIT(19) | BIT(18) | BIT(17) | BIT(16))
#define HSU_CH_SR_CDESC_ANY (BIT(31) | BIT(30))
/* Bits in HSU_CH_CR */
#define HSU_CH_CR_CHA BIT(0)