diff options
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/dw-edma/dw-edma-core.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/dma/dw-edma/dw-edma-core.c b/drivers/dma/dw-edma/dw-edma-core.c index db401eb11322..306ab50462be 100644 --- a/drivers/dma/dw-edma/dw-edma-core.c +++ b/drivers/dma/dw-edma/dw-edma-core.c @@ -13,6 +13,7 @@ #include <linux/dmaengine.h> #include <linux/err.h> #include <linux/interrupt.h> +#include <linux/irq.h> #include <linux/dma/edma.h> #include <linux/dma-mapping.h> @@ -773,6 +774,7 @@ static int dw_edma_irq_request(struct dw_edma_chip *chip, u32 rd_mask = 1; int i, err = 0; u32 ch_cnt; + int irq; ch_cnt = dw->wr_ch_cnt + dw->rd_ch_cnt; @@ -781,16 +783,16 @@ static int dw_edma_irq_request(struct dw_edma_chip *chip, if (dw->nr_irqs == 1) { /* Common IRQ shared among all channels */ - err = request_irq(dw->ops->irq_vector(dev, 0), - dw_edma_interrupt_common, + irq = dw->ops->irq_vector(dev, 0); + err = request_irq(irq, dw_edma_interrupt_common, IRQF_SHARED, dw->name, &dw->irq[0]); if (err) { dw->nr_irqs = 0; return err; } - get_cached_msi_msg(dw->ops->irq_vector(dev, 0), - &dw->irq[0].msi); + if (irq_get_msi_desc(irq)) + get_cached_msi_msg(irq, &dw->irq[0].msi); } else { /* Distribute IRQs equally among all channels */ int tmp = dw->nr_irqs; @@ -804,7 +806,8 @@ static int dw_edma_irq_request(struct dw_edma_chip *chip, dw_edma_add_irq_mask(&rd_mask, *rd_alloc, dw->rd_ch_cnt); for (i = 0; i < (*wr_alloc + *rd_alloc); i++) { - err = request_irq(dw->ops->irq_vector(dev, i), + irq = dw->ops->irq_vector(dev, i); + err = request_irq(irq, i < *wr_alloc ? dw_edma_interrupt_write : dw_edma_interrupt_read, @@ -815,8 +818,8 @@ static int dw_edma_irq_request(struct dw_edma_chip *chip, return err; } - get_cached_msi_msg(dw->ops->irq_vector(dev, i), - &dw->irq[i].msi); + if (irq_get_msi_desc(irq)) + get_cached_msi_msg(irq, &dw->irq[i].msi); } dw->nr_irqs = i; |