diff options
Diffstat (limited to 'arch/mips/pci/pci-ar2315.c')
| -rw-r--r-- | arch/mips/pci/pci-ar2315.c | 34 |
1 files changed, 16 insertions, 18 deletions
diff --git a/arch/mips/pci/pci-ar2315.c b/arch/mips/pci/pci-ar2315.c index 490953f51528..17fa97ec6ffb 100644 --- a/arch/mips/pci/pci-ar2315.c +++ b/arch/mips/pci/pci-ar2315.c @@ -2,7 +2,7 @@ /* */ -/** +/* * Both AR2315 and AR2316 chips have PCI interface unit, which supports DMA * and interrupt. PCI interface supports MMIO access method, but does not * seem to support I/O ports. @@ -16,7 +16,7 @@ * the CFG_SEL bit in the PCI_MISC_CONFIG register. * * Devices on the bus can perform DMA requests via chip BAR1. PCI host - * controller BARs are programmend as if an external device is programmed. + * controller BARs are programmed as if an external device is programmed. * Which means that during configuration, IDSEL pin of the chip should be * asserted. * @@ -31,6 +31,7 @@ #include <linux/platform_device.h> #include <linux/kernel.h> #include <linux/init.h> +#include <linux/dma-direct.h> #include <linux/mm.h> #include <linux/delay.h> #include <linux/bitops.h> @@ -170,12 +171,12 @@ static inline dma_addr_t ar2315_dev_offset(struct device *dev) return 0; } -dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr) +dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr) { return paddr + ar2315_dev_offset(dev); } -phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t dma_addr) +phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dma_addr) { return dma_addr - ar2315_dev_offset(dev); } @@ -336,14 +337,12 @@ static void ar2315_pci_irq_handler(struct irq_desc *desc) struct ar2315_pci_ctrl *apc = irq_desc_get_handler_data(desc); u32 pending = ar2315_pci_reg_read(apc, AR2315_PCI_ISR) & ar2315_pci_reg_read(apc, AR2315_PCI_IMR); - unsigned pci_irq = 0; + int ret = 0; if (pending) - pci_irq = irq_find_mapping(apc->domain, __ffs(pending)); + ret = generic_handle_domain_irq(apc->domain, __ffs(pending)); - if (pci_irq) - generic_handle_irq(pci_irq); - else + if (!pending || ret) spurious_interrupt(); } @@ -385,7 +384,7 @@ static int ar2315_pci_irq_map(struct irq_domain *d, unsigned irq, return 0; } -static struct irq_domain_ops ar2315_pci_irq_domain_ops = { +static const struct irq_domain_ops ar2315_pci_irq_domain_ops = { .map = ar2315_pci_irq_map, }; @@ -423,9 +422,8 @@ static int ar2315_pci_probe(struct platform_device *pdev) return -EINVAL; apc->irq = irq; - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, - "ar2315-pci-ctrl"); - apc->mmr_mem = devm_ioremap_resource(dev, res); + apc->mmr_mem = devm_platform_ioremap_resource_byname(pdev, + "ar2315-pci-ctrl"); if (IS_ERR(apc->mmr_mem)) return PTR_ERR(apc->mmr_mem); @@ -471,8 +469,8 @@ static int ar2315_pci_probe(struct platform_device *pdev) if (err) return err; - apc->domain = irq_domain_add_linear(NULL, AR2315_PCI_IRQ_COUNT, - &ar2315_pci_irq_domain_ops, apc); + apc->domain = irq_domain_create_linear(NULL, AR2315_PCI_IRQ_COUNT, + &ar2315_pci_irq_domain_ops, apc); if (!apc->domain) { dev_err(dev, "failed to add IRQ domain\n"); return -ENOMEM; @@ -484,11 +482,11 @@ static int ar2315_pci_probe(struct platform_device *pdev) apc->io_res.name = "AR2315 IO space"; apc->io_res.start = 0; apc->io_res.end = 0; - apc->io_res.flags = IORESOURCE_IO, + apc->io_res.flags = IORESOURCE_IO; apc->pci_ctrl.pci_ops = &ar2315_pci_ops; - apc->pci_ctrl.mem_resource = &apc->mem_res, - apc->pci_ctrl.io_resource = &apc->io_res, + apc->pci_ctrl.mem_resource = &apc->mem_res; + apc->pci_ctrl.io_resource = &apc->io_res; register_pci_controller(&apc->pci_ctrl); |