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path: root/drivers/dma/fsl-edma-common.c
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Diffstat (limited to 'drivers/dma/fsl-edma-common.c')
-rw-r--r--drivers/dma/fsl-edma-common.c30
1 files changed, 22 insertions, 8 deletions
diff --git a/drivers/dma/fsl-edma-common.c b/drivers/dma/fsl-edma-common.c
index 443b2430466c..4976d7dde080 100644
--- a/drivers/dma/fsl-edma-common.c
+++ b/drivers/dma/fsl-edma-common.c
@@ -95,7 +95,7 @@ static void fsl_edma3_enable_request(struct fsl_edma_chan *fsl_chan)
}
val = edma_readl_chreg(fsl_chan, ch_csr);
- val |= EDMA_V3_CH_CSR_ERQ;
+ val |= EDMA_V3_CH_CSR_ERQ | EDMA_V3_CH_CSR_EEI;
edma_writel_chreg(fsl_chan, val, ch_csr);
}
@@ -821,7 +821,7 @@ void fsl_edma_issue_pending(struct dma_chan *chan)
int fsl_edma_alloc_chan_resources(struct dma_chan *chan)
{
struct fsl_edma_chan *fsl_chan = to_fsl_edma_chan(chan);
- int ret;
+ int ret = 0;
if (fsl_edma_drvflags(fsl_chan) & FSL_EDMA_DRV_HAS_CHCLK)
clk_prepare_enable(fsl_chan->clk);
@@ -831,17 +831,29 @@ int fsl_edma_alloc_chan_resources(struct dma_chan *chan)
sizeof(struct fsl_edma_hw_tcd64) : sizeof(struct fsl_edma_hw_tcd),
32, 0);
- if (fsl_chan->txirq) {
+ if (fsl_chan->txirq)
ret = request_irq(fsl_chan->txirq, fsl_chan->irq_handler, IRQF_SHARED,
fsl_chan->chan_name, fsl_chan);
- if (ret) {
- dma_pool_destroy(fsl_chan->tcd_pool);
- return ret;
- }
- }
+ if (ret)
+ goto err_txirq;
+
+ if (fsl_chan->errirq > 0)
+ ret = request_irq(fsl_chan->errirq, fsl_chan->errirq_handler, IRQF_SHARED,
+ fsl_chan->errirq_name, fsl_chan);
+
+ if (ret)
+ goto err_errirq;
return 0;
+
+err_errirq:
+ if (fsl_chan->txirq)
+ free_irq(fsl_chan->txirq, fsl_chan);
+err_txirq:
+ dma_pool_destroy(fsl_chan->tcd_pool);
+
+ return ret;
}
void fsl_edma_free_chan_resources(struct dma_chan *chan)
@@ -862,6 +874,8 @@ void fsl_edma_free_chan_resources(struct dma_chan *chan)
if (fsl_chan->txirq)
free_irq(fsl_chan->txirq, fsl_chan);
+ if (fsl_chan->errirq)
+ free_irq(fsl_chan->errirq, fsl_chan);
vchan_dma_desc_free_list(&fsl_chan->vchan, &head);
dma_pool_destroy(fsl_chan->tcd_pool);