diff options
| -rw-r--r-- | arch/x86/pci/intel_mid_pci.c | 1 | ||||
| -rw-r--r-- | drivers/spi/spi-dw-mid.c | 2 | ||||
| -rw-r--r-- | drivers/spi/spi-dw-pci.c | 38 |
3 files changed, 30 insertions, 11 deletions
diff --git a/arch/x86/pci/intel_mid_pci.c b/arch/x86/pci/intel_mid_pci.c index 44b9271..852aa4c 100644 --- a/arch/x86/pci/intel_mid_pci.c +++ b/arch/x86/pci/intel_mid_pci.c @@ -293,7 +293,6 @@ static void mrst_power_off_unused_dev(struct pci_dev *dev) DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0801, mrst_power_off_unused_dev); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0809, mrst_power_off_unused_dev); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x080C, mrst_power_off_unused_dev); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0812, mrst_power_off_unused_dev); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0815, mrst_power_off_unused_dev); /* diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c index a67d37c..47a8e65 100644 --- a/drivers/spi/spi-dw-mid.c +++ b/drivers/spi/spi-dw-mid.c @@ -270,8 +270,6 @@ int dw_spi_mid_init(struct dw_spi *dws) dws->max_freq = MRST_SPI_CLK_BASE / (clk_cdiv + 1); iounmap(clk_reg); - dws->num_cs = 16; - #ifdef CONFIG_SPI_DW_MID_DMA dws->dma_priv = kzalloc(sizeof(struct mid_dma), GFP_KERNEL); if (!dws->dma_priv) diff --git a/drivers/spi/spi-dw-pci.c b/drivers/spi/spi-dw-pci.c index ba68da1..64f3efa 100644 --- a/drivers/spi/spi-dw-pci.c +++ b/drivers/spi/spi-dw-pci.c @@ -30,10 +30,20 @@ struct dw_spi_pci { struct spi_pci_desc { int (*setup)(struct dw_spi *); + u16 num_cs; + u16 bus_num; }; -static struct spi_pci_desc spi_pci_mid_desc = { +static struct spi_pci_desc spi_pci_mid_desc_1 = { .setup = dw_spi_mid_init, + .num_cs = 32, + .bus_num = 0, +}; + +static struct spi_pci_desc spi_pci_mid_desc_2 = { + .setup = dw_spi_mid_init, + .num_cs = 4, + .bus_num = 1, }; static int spi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) @@ -65,18 +75,23 @@ static int spi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) dws->regs = pcim_iomap_table(pdev)[pci_bar]; - dws->bus_num = 0; - dws->num_cs = 4; dws->irq = pdev->irq; /* * Specific handling for paltforms, like dma setup, * clock rate, FIFO depth. */ - if (desc && desc->setup) { - ret = desc->setup(dws); - if (ret) - return ret; + if (desc) { + if (desc->setup) { + ret = desc->setup(dws); + if (ret) + return ret; + } + + dws->num_cs = desc->num_cs; + dws->bus_num = desc->bus_num; + } else { + return -ENODEV; } ret = dw_spi_add_host(&pdev->dev, dws); @@ -121,7 +136,14 @@ static SIMPLE_DEV_PM_OPS(dw_spi_pm_ops, spi_suspend, spi_resume); static const struct pci_device_id pci_ids[] = { /* Intel MID platform SPI controller 0 */ - { PCI_VDEVICE(INTEL, 0x0800), (kernel_ulong_t)&spi_pci_mid_desc}, + /* + * 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}, + /* Intel MID platform SPI controller 2 */ + { PCI_VDEVICE(INTEL, 0x0812), (kernel_ulong_t)&spi_pci_mid_desc_2}, {}, }; |
