diff options
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/lpc_sch.c | 37 |
1 files changed, 31 insertions, 6 deletions
diff --git a/drivers/mfd/lpc_sch.c b/drivers/mfd/lpc_sch.c index bde070a3a3c0..ae614b2aca7e 100644 --- a/drivers/mfd/lpc_sch.c +++ b/drivers/mfd/lpc_sch.c @@ -37,6 +37,9 @@ #define GPIO_IO_SIZE 64 #define GPIO_IO_SIZE_CENTERTON 128 +/* Intel Quark X1000 GPIO IRQ Number */ +#define GPIO_IRQ_QUARK_X1000 9 + #define WDTBASE 0x84 #define WDT_IO_SIZE 64 @@ -44,28 +47,37 @@ enum sch_chipsets { LPC_SCH = 0, /* Intel Poulsbo SCH */ LPC_ITC, /* Intel Tunnel Creek */ LPC_CENTERTON, /* Intel Centerton */ + LPC_QUARK_X1000, /* Intel Quark X1000 */ }; struct lpc_sch_info { unsigned int io_size_smbus; unsigned int io_size_gpio; unsigned int io_size_wdt; + int irq_gpio; }; static struct lpc_sch_info sch_chipset_info[] = { [LPC_SCH] = { .io_size_smbus = SMBUS_IO_SIZE, .io_size_gpio = GPIO_IO_SIZE, + .irq_gpio = -1, }, [LPC_ITC] = { .io_size_smbus = SMBUS_IO_SIZE, .io_size_gpio = GPIO_IO_SIZE, .io_size_wdt = WDT_IO_SIZE, + .irq_gpio = -1, }, [LPC_CENTERTON] = { .io_size_smbus = SMBUS_IO_SIZE, .io_size_gpio = GPIO_IO_SIZE_CENTERTON, .io_size_wdt = WDT_IO_SIZE, + .irq_gpio = -1, + }, + [LPC_QUARK_X1000] = { + .io_size_gpio = GPIO_IO_SIZE, + .irq_gpio = GPIO_IRQ_QUARK_X1000, }, }; @@ -73,6 +85,7 @@ static const struct pci_device_id lpc_sch_ids[] = { { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_SCH_LPC), LPC_SCH }, { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ITC_LPC), LPC_ITC }, { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_CENTERTON_ILB), LPC_CENTERTON }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_QUARK_X1000_ILB), LPC_QUARK_X1000 }, { 0, } }; MODULE_DEVICE_TABLE(pci, lpc_sch_ids); @@ -110,13 +123,13 @@ static int lpc_sch_get_io(struct pci_dev *pdev, int where, const char *name, } static int lpc_sch_populate_cell(struct pci_dev *pdev, int where, - const char *name, int size, int id, - struct mfd_cell *cell) + const char *name, int size, int irq, + int id, struct mfd_cell *cell) { struct resource *res; int ret; - res = devm_kzalloc(&pdev->dev, sizeof(*res), GFP_KERNEL); + res = devm_kcalloc(&pdev->dev, 2, sizeof(*res), GFP_KERNEL); if (!res) return -ENOMEM; @@ -132,6 +145,18 @@ static int lpc_sch_populate_cell(struct pci_dev *pdev, int where, cell->ignore_resource_conflicts = true; cell->id = id; + /* Check if we need to add an IRQ resource */ + if (irq < 0) + return 0; + + res++; + + res->start = irq; + res->end = irq; + res->flags = IORESOURCE_IRQ; + + cell->num_resources++; + return 0; } @@ -143,7 +168,7 @@ static int lpc_sch_probe(struct pci_dev *dev, const struct pci_device_id *id) int ret; ret = lpc_sch_populate_cell(dev, SMBASE, "isch_smbus", - info->io_size_smbus, + info->io_size_smbus, -1, id->device, &lpc_sch_cells[cells]); if (ret < 0) return ret; @@ -151,7 +176,7 @@ static int lpc_sch_probe(struct pci_dev *dev, const struct pci_device_id *id) cells++; ret = lpc_sch_populate_cell(dev, GPIOBASE, "sch_gpio", - info->io_size_gpio, + info->io_size_gpio, info->irq_gpio, id->device, &lpc_sch_cells[cells]); if (ret < 0) return ret; @@ -159,7 +184,7 @@ static int lpc_sch_probe(struct pci_dev *dev, const struct pci_device_id *id) cells++; ret = lpc_sch_populate_cell(dev, WDTBASE, "ie6xx_wdt", - info->io_size_wdt, + info->io_size_wdt, -1, id->device, &lpc_sch_cells[cells]); if (ret < 0) return ret; |