diff options
Diffstat (limited to 'drivers/dma/dw')
| -rw-r--r-- | drivers/dma/dw/pci.c | 33 |
1 files changed, 25 insertions, 8 deletions
diff --git a/drivers/dma/dw/pci.c b/drivers/dma/dw/pci.c index e79a75db0852..8de87b15a988 100644 --- a/drivers/dma/dw/pci.c +++ b/drivers/dma/dw/pci.c @@ -15,10 +15,13 @@ struct dw_dma_pci_data { const struct dw_dma_platform_data *pdata; int (*probe)(struct dw_dma_chip *chip); + int (*remove)(struct dw_dma_chip *chip); + struct dw_dma_chip *chip; }; static const struct dw_dma_pci_data dw_pci_data = { .probe = dw_dma_probe, + .remove = dw_dma_remove, }; static const struct dw_dma_platform_data idma32_pdata = { @@ -34,11 +37,13 @@ static const struct dw_dma_platform_data idma32_pdata = { static const struct dw_dma_pci_data idma32_pci_data = { .pdata = &idma32_pdata, .probe = idma32_dma_probe, + .remove = idma32_dma_remove, }; static int dw_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid) { - const struct dw_dma_pci_data *data = (void *)pid->driver_data; + const struct dw_dma_pci_data *drv_data = (void *)pid->driver_data; + struct dw_dma_pci_data *data; struct dw_dma_chip *chip; int ret; @@ -63,6 +68,10 @@ static int dw_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid) if (ret) return ret; + data = devm_kmemdup(&pdev->dev, drv_data, sizeof(*drv_data), GFP_KERNEL); + if (!data) + return -ENOMEM; + chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL); if (!chip) return -ENOMEM; @@ -73,21 +82,24 @@ static int dw_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pid) chip->irq = pdev->irq; chip->pdata = data->pdata; + data->chip = chip; + ret = data->probe(chip); if (ret) return ret; - pci_set_drvdata(pdev, chip); + pci_set_drvdata(pdev, data); return 0; } static void dw_pci_remove(struct pci_dev *pdev) { - struct dw_dma_chip *chip = pci_get_drvdata(pdev); + struct dw_dma_pci_data *data = pci_get_drvdata(pdev); + struct dw_dma_chip *chip = data->chip; int ret; - ret = dw_dma_remove(chip); + ret = data->remove(chip); if (ret) dev_warn(&pdev->dev, "can't remove device properly: %d\n", ret); } @@ -96,16 +108,16 @@ static void dw_pci_remove(struct pci_dev *pdev) static int dw_pci_suspend_late(struct device *dev) { - struct pci_dev *pci = to_pci_dev(dev); - struct dw_dma_chip *chip = pci_get_drvdata(pci); + struct dw_dma_pci_data *data = dev_get_drvdata(dev); + struct dw_dma_chip *chip = data->chip; return do_dw_dma_disable(chip); }; static int dw_pci_resume_early(struct device *dev) { - struct pci_dev *pci = to_pci_dev(dev); - struct dw_dma_chip *chip = pci_get_drvdata(pci); + struct dw_dma_pci_data *data = dev_get_drvdata(dev); + struct dw_dma_chip *chip = data->chip; return do_dw_dma_enable(chip); }; @@ -131,6 +143,11 @@ static const struct pci_device_id dw_pci_id_table[] = { { PCI_VDEVICE(INTEL, 0x2286), (kernel_ulong_t)&dw_pci_data }, { PCI_VDEVICE(INTEL, 0x22c0), (kernel_ulong_t)&dw_pci_data }, + /* Elkhart Lake iDMA 32-bit (OSE DMA) */ + { PCI_VDEVICE(INTEL, 0x4bb4), (kernel_ulong_t)&idma32_pci_data }, + { PCI_VDEVICE(INTEL, 0x4bb5), (kernel_ulong_t)&idma32_pci_data }, + { PCI_VDEVICE(INTEL, 0x4bb6), (kernel_ulong_t)&idma32_pci_data }, + /* Haswell */ { PCI_VDEVICE(INTEL, 0x9c60), (kernel_ulong_t)&dw_pci_data }, |