diff options
| -rw-r--r-- | drivers/dma/dw-edma/dw-edma-core.c | 29 | ||||
| -rw-r--r-- | drivers/dma/dw-edma/dw-edma-core.h | 4 | ||||
| -rw-r--r-- | drivers/dma/dw-edma/dw-edma-pcie.c | 10 |
3 files changed, 34 insertions, 9 deletions
diff --git a/drivers/dma/dw-edma/dw-edma-core.c b/drivers/dma/dw-edma/dw-edma-core.c index ff392c01bad1..db401eb11322 100644 --- a/drivers/dma/dw-edma/dw-edma-core.c +++ b/drivers/dma/dw-edma/dw-edma-core.c @@ -14,7 +14,7 @@ #include <linux/err.h> #include <linux/interrupt.h> #include <linux/dma/edma.h> -#include <linux/pci.h> +#include <linux/dma-mapping.h> #include "dw-edma-core.h" #include "dw-edma-v0-core.h" @@ -781,7 +781,7 @@ 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(pci_irq_vector(to_pci_dev(dev), 0), + err = request_irq(dw->ops->irq_vector(dev, 0), dw_edma_interrupt_common, IRQF_SHARED, dw->name, &dw->irq[0]); if (err) { @@ -789,7 +789,7 @@ static int dw_edma_irq_request(struct dw_edma_chip *chip, return err; } - get_cached_msi_msg(pci_irq_vector(to_pci_dev(dev), 0), + get_cached_msi_msg(dw->ops->irq_vector(dev, 0), &dw->irq[0].msi); } else { /* Distribute IRQs equally among all channels */ @@ -804,7 +804,7 @@ 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(pci_irq_vector(to_pci_dev(dev), i), + err = request_irq(dw->ops->irq_vector(dev, i), i < *wr_alloc ? dw_edma_interrupt_write : dw_edma_interrupt_read, @@ -815,7 +815,7 @@ static int dw_edma_irq_request(struct dw_edma_chip *chip, return err; } - get_cached_msi_msg(pci_irq_vector(to_pci_dev(dev), i), + get_cached_msi_msg(dw->ops->irq_vector(dev, i), &dw->irq[i].msi); } @@ -827,12 +827,23 @@ static int dw_edma_irq_request(struct dw_edma_chip *chip, int dw_edma_probe(struct dw_edma_chip *chip) { - struct device *dev = chip->dev; - struct dw_edma *dw = chip->dw; + struct device *dev; + struct dw_edma *dw; u32 wr_alloc = 0; u32 rd_alloc = 0; int i, err; + if (!chip) + return -EINVAL; + + dev = chip->dev; + if (!dev) + return -EINVAL; + + dw = chip->dw; + if (!dw || !dw->irq || !dw->ops || !dw->ops->irq_vector) + return -EINVAL; + raw_spin_lock_init(&dw->lock); /* Find out how many write channels are supported by hardware */ @@ -884,7 +895,7 @@ int dw_edma_probe(struct dw_edma_chip *chip) err_irq_free: for (i = (dw->nr_irqs - 1); i >= 0; i--) - free_irq(pci_irq_vector(to_pci_dev(dev), i), &dw->irq[i]); + free_irq(dw->ops->irq_vector(dev, i), &dw->irq[i]); dw->nr_irqs = 0; @@ -904,7 +915,7 @@ int dw_edma_remove(struct dw_edma_chip *chip) /* Free irqs */ for (i = (dw->nr_irqs - 1); i >= 0; i--) - free_irq(pci_irq_vector(to_pci_dev(dev), i), &dw->irq[i]); + free_irq(dw->ops->irq_vector(dev, i), &dw->irq[i]); /* Power management */ pm_runtime_disable(dev); diff --git a/drivers/dma/dw-edma/dw-edma-core.h b/drivers/dma/dw-edma/dw-edma-core.h index 4e5f9f6e901b..31fc50d31792 100644 --- a/drivers/dma/dw-edma/dw-edma-core.h +++ b/drivers/dma/dw-edma/dw-edma-core.h @@ -103,6 +103,10 @@ struct dw_edma_irq { struct dw_edma *dw; }; +struct dw_edma_core_ops { + int (*irq_vector)(struct device *dev, unsigned int nr); +}; + struct dw_edma { char name[20]; diff --git a/drivers/dma/dw-edma/dw-edma-pcie.c b/drivers/dma/dw-edma/dw-edma-pcie.c index dc85f55e1bb8..1eafc602e17e 100644 --- a/drivers/dma/dw-edma/dw-edma-pcie.c +++ b/drivers/dma/dw-edma/dw-edma-pcie.c @@ -54,6 +54,15 @@ static const struct dw_edma_pcie_data snps_edda_data = { .irqs = 1, }; +static int dw_edma_pcie_irq_vector(struct device *dev, unsigned int nr) +{ + return pci_irq_vector(to_pci_dev(dev), nr); +} + +static const struct dw_edma_core_ops dw_edma_pcie_core_ops = { + .irq_vector = dw_edma_pcie_irq_vector, +}; + static int dw_edma_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *pid) { @@ -151,6 +160,7 @@ static int dw_edma_pcie_probe(struct pci_dev *pdev, dw->version = pdata->version; dw->mode = pdata->mode; dw->nr_irqs = nr_irqs; + dw->ops = &dw_edma_pcie_core_ops; /* Debug info */ pci_dbg(pdev, "Version:\t%u\n", dw->version); |