diff options
Diffstat (limited to 'drivers/spi/spi-dw-pci.c')
| -rw-r--r-- | drivers/spi/spi-dw-pci.c | 99 |
1 files changed, 47 insertions, 52 deletions
diff --git a/drivers/spi/spi-dw-pci.c b/drivers/spi/spi-dw-pci.c index 2ea73809ca34..72d9f5bc87f7 100644 --- a/drivers/spi/spi-dw-pci.c +++ b/drivers/spi/spi-dw-pci.c @@ -24,14 +24,14 @@ #define CLK_SPI_CDIV_MASK 0x00000e00 #define CLK_SPI_DISABLE_OFFSET 8 -struct spi_pci_desc { +struct dw_spi_pci_desc { int (*setup)(struct dw_spi *); u16 num_cs; u16 bus_num; u32 max_freq; }; -static int spi_mid_init(struct dw_spi *dws) +static int dw_spi_pci_mid_init(struct dw_spi *dws) { void __iomem *clk_reg; u32 clk_cdiv; @@ -48,47 +48,41 @@ static int spi_mid_init(struct dw_spi *dws) iounmap(clk_reg); - /* Register hook to configure CTRLR0 */ - dws->update_cr0 = dw_spi_update_cr0; - dw_spi_dma_setup_mfld(dws); return 0; } -static int spi_generic_init(struct dw_spi *dws) +static int dw_spi_pci_generic_init(struct dw_spi *dws) { - /* Register hook to configure CTRLR0 */ - dws->update_cr0 = dw_spi_update_cr0; - dw_spi_dma_setup_generic(dws); return 0; } -static struct spi_pci_desc spi_pci_mid_desc_1 = { - .setup = spi_mid_init, +static struct dw_spi_pci_desc dw_spi_pci_mid_desc_1 = { + .setup = dw_spi_pci_mid_init, .num_cs = 5, .bus_num = 0, }; -static struct spi_pci_desc spi_pci_mid_desc_2 = { - .setup = spi_mid_init, +static struct dw_spi_pci_desc dw_spi_pci_mid_desc_2 = { + .setup = dw_spi_pci_mid_init, .num_cs = 2, .bus_num = 1, }; -static struct spi_pci_desc spi_pci_ehl_desc = { - .setup = spi_generic_init, +static struct dw_spi_pci_desc dw_spi_pci_ehl_desc = { + .setup = dw_spi_pci_generic_init, .num_cs = 2, .bus_num = -1, .max_freq = 100000000, }; -static int spi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) +static int dw_spi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { + struct dw_spi_pci_desc *desc = (struct dw_spi_pci_desc *)ent->driver_data; struct dw_spi *dws; - struct spi_pci_desc *desc = (struct spi_pci_desc *)ent->driver_data; int pci_bar = 0; int ret; @@ -104,15 +98,14 @@ static int spi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) dws->paddr = pci_resource_start(pdev, pci_bar); pci_set_master(pdev); - ret = pcim_iomap_regions(pdev, 1 << pci_bar, pci_name(pdev)); - if (ret) - return ret; - ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES); if (ret < 0) return ret; - dws->regs = pcim_iomap_table(pdev)[pci_bar]; + dws->regs = pcim_iomap_region(pdev, pci_bar, pci_name(pdev)); + if (IS_ERR(dws->regs)) + return PTR_ERR(dws->regs); + dws->irq = pci_irq_vector(pdev, 0); /* @@ -127,18 +120,16 @@ static int spi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (desc->setup) { ret = desc->setup(dws); if (ret) - return ret; + goto err_free_irq_vectors; } } else { - pci_free_irq_vectors(pdev); - return -ENODEV; + ret = -ENODEV; + goto err_free_irq_vectors; } - ret = dw_spi_add_host(&pdev->dev, dws); - if (ret) { - pci_free_irq_vectors(pdev); - return ret; - } + ret = dw_spi_add_controller(&pdev->dev, dws); + if (ret) + goto err_free_irq_vectors; /* PCI hook and SPI hook use the same drv data */ pci_set_drvdata(pdev, dws); @@ -152,68 +143,72 @@ static int spi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) pm_runtime_allow(&pdev->dev); return 0; + +err_free_irq_vectors: + pci_free_irq_vectors(pdev); + return ret; } -static void spi_pci_remove(struct pci_dev *pdev) +static void dw_spi_pci_remove(struct pci_dev *pdev) { struct dw_spi *dws = pci_get_drvdata(pdev); pm_runtime_forbid(&pdev->dev); pm_runtime_get_noresume(&pdev->dev); - dw_spi_remove_host(dws); + dw_spi_remove_controller(dws); pci_free_irq_vectors(pdev); } #ifdef CONFIG_PM_SLEEP -static int spi_suspend(struct device *dev) +static int dw_spi_pci_suspend(struct device *dev) { struct dw_spi *dws = dev_get_drvdata(dev); - return dw_spi_suspend_host(dws); + return dw_spi_suspend_controller(dws); } -static int spi_resume(struct device *dev) +static int dw_spi_pci_resume(struct device *dev) { struct dw_spi *dws = dev_get_drvdata(dev); - return dw_spi_resume_host(dws); + return dw_spi_resume_controller(dws); } #endif -static SIMPLE_DEV_PM_OPS(dw_spi_pm_ops, spi_suspend, spi_resume); +static SIMPLE_DEV_PM_OPS(dw_spi_pci_pm_ops, dw_spi_pci_suspend, dw_spi_pci_resume); -static const struct pci_device_id pci_ids[] = { +static const struct pci_device_id dw_spi_pci_ids[] = { /* Intel MID platform SPI controller 0 */ /* * The access to the device 8086:0801 is disabled by HW, since it's * exclusively used by SCU to communicate with MSIC. */ /* Intel MID platform SPI controller 1 */ - { PCI_VDEVICE(INTEL, 0x0800), (kernel_ulong_t)&spi_pci_mid_desc_1}, + { PCI_VDEVICE(INTEL, 0x0800), (kernel_ulong_t)&dw_spi_pci_mid_desc_1}, /* Intel MID platform SPI controller 2 */ - { PCI_VDEVICE(INTEL, 0x0812), (kernel_ulong_t)&spi_pci_mid_desc_2}, + { PCI_VDEVICE(INTEL, 0x0812), (kernel_ulong_t)&dw_spi_pci_mid_desc_2}, /* Intel Elkhart Lake PSE SPI controllers */ - { PCI_VDEVICE(INTEL, 0x4b84), (kernel_ulong_t)&spi_pci_ehl_desc}, - { PCI_VDEVICE(INTEL, 0x4b85), (kernel_ulong_t)&spi_pci_ehl_desc}, - { PCI_VDEVICE(INTEL, 0x4b86), (kernel_ulong_t)&spi_pci_ehl_desc}, - { PCI_VDEVICE(INTEL, 0x4b87), (kernel_ulong_t)&spi_pci_ehl_desc}, + { PCI_VDEVICE(INTEL, 0x4b84), (kernel_ulong_t)&dw_spi_pci_ehl_desc}, + { PCI_VDEVICE(INTEL, 0x4b85), (kernel_ulong_t)&dw_spi_pci_ehl_desc}, + { PCI_VDEVICE(INTEL, 0x4b86), (kernel_ulong_t)&dw_spi_pci_ehl_desc}, + { PCI_VDEVICE(INTEL, 0x4b87), (kernel_ulong_t)&dw_spi_pci_ehl_desc}, {}, }; -MODULE_DEVICE_TABLE(pci, pci_ids); +MODULE_DEVICE_TABLE(pci, dw_spi_pci_ids); -static struct pci_driver dw_spi_driver = { +static struct pci_driver dw_spi_pci_driver = { .name = DRIVER_NAME, - .id_table = pci_ids, - .probe = spi_pci_probe, - .remove = spi_pci_remove, + .id_table = dw_spi_pci_ids, + .probe = dw_spi_pci_probe, + .remove = dw_spi_pci_remove, .driver = { - .pm = &dw_spi_pm_ops, + .pm = &dw_spi_pci_pm_ops, }, }; - -module_pci_driver(dw_spi_driver); +module_pci_driver(dw_spi_pci_driver); MODULE_AUTHOR("Feng Tang <feng.tang@intel.com>"); MODULE_DESCRIPTION("PCI interface driver for DW SPI Core"); MODULE_LICENSE("GPL v2"); +MODULE_IMPORT_NS("SPI_DW_CORE"); |