diff options
Diffstat (limited to 'arch/mips/pci/pci-ar724x.c')
| -rw-r--r-- | arch/mips/pci/pci-ar724x.c | 23 |
1 files changed, 0 insertions, 23 deletions
diff --git a/arch/mips/pci/pci-ar724x.c b/arch/mips/pci/pci-ar724x.c index 785b2659b519..b7a6fcbb8852 100644 --- a/arch/mips/pci/pci-ar724x.c +++ b/arch/mips/pci/pci-ar724x.c @@ -9,7 +9,6 @@ * by the Free Software Foundation. */ -#include <linux/spinlock.h> #include <linux/irq.h> #include <linux/pci.h> #include <linux/module.h> @@ -48,8 +47,6 @@ struct ar724x_pci_controller { bool bar0_is_cached; u32 bar0_value; - spinlock_t lock; - struct pci_controller pci_controller; struct resource io_res; struct resource mem_res; @@ -75,7 +72,6 @@ pci_bus_to_ar724x_controller(struct pci_bus *bus) static int ar724x_pci_local_write(struct ar724x_pci_controller *apc, int where, int size, u32 value) { - unsigned long flags; void __iomem *base; u32 data; int s; @@ -86,8 +82,6 @@ static int ar724x_pci_local_write(struct ar724x_pci_controller *apc, return PCIBIOS_DEVICE_NOT_FOUND; base = apc->crp_base; - - spin_lock_irqsave(&apc->lock, flags); data = __raw_readl(base + (where & ~3)); switch (size) { @@ -105,14 +99,12 @@ static int ar724x_pci_local_write(struct ar724x_pci_controller *apc, data = value; break; default: - spin_unlock_irqrestore(&apc->lock, flags); return PCIBIOS_BAD_REGISTER_NUMBER; } __raw_writel(data, base + (where & ~3)); /* flush write */ __raw_readl(base + (where & ~3)); - spin_unlock_irqrestore(&apc->lock, flags); return PCIBIOS_SUCCESSFUL; } @@ -121,7 +113,6 @@ static int ar724x_pci_read(struct pci_bus *bus, unsigned int devfn, int where, int size, uint32_t *value) { struct ar724x_pci_controller *apc; - unsigned long flags; void __iomem *base; u32 data; @@ -133,8 +124,6 @@ static int ar724x_pci_read(struct pci_bus *bus, unsigned int devfn, int where, return PCIBIOS_DEVICE_NOT_FOUND; base = apc->devcfg_base; - - spin_lock_irqsave(&apc->lock, flags); data = __raw_readl(base + (where & ~3)); switch (size) { @@ -153,13 +142,9 @@ static int ar724x_pci_read(struct pci_bus *bus, unsigned int devfn, int where, case 4: break; default: - spin_unlock_irqrestore(&apc->lock, flags); - return PCIBIOS_BAD_REGISTER_NUMBER; } - spin_unlock_irqrestore(&apc->lock, flags); - if (where == PCI_BASE_ADDRESS_0 && size == 4 && apc->bar0_is_cached) { /* use the cached value */ @@ -175,7 +160,6 @@ static int ar724x_pci_write(struct pci_bus *bus, unsigned int devfn, int where, int size, uint32_t value) { struct ar724x_pci_controller *apc; - unsigned long flags; void __iomem *base; u32 data; int s; @@ -209,8 +193,6 @@ static int ar724x_pci_write(struct pci_bus *bus, unsigned int devfn, int where, } base = apc->devcfg_base; - - spin_lock_irqsave(&apc->lock, flags); data = __raw_readl(base + (where & ~3)); switch (size) { @@ -228,15 +210,12 @@ static int ar724x_pci_write(struct pci_bus *bus, unsigned int devfn, int where, data = value; break; default: - spin_unlock_irqrestore(&apc->lock, flags); - return PCIBIOS_BAD_REGISTER_NUMBER; } __raw_writel(data, base + (where & ~3)); /* flush write */ __raw_readl(base + (where & ~3)); - spin_unlock_irqrestore(&apc->lock, flags); return PCIBIOS_SUCCESSFUL; } @@ -380,8 +359,6 @@ static int ar724x_pci_probe(struct platform_device *pdev) if (apc->irq < 0) return -EINVAL; - spin_lock_init(&apc->lock); - res = platform_get_resource_byname(pdev, IORESOURCE_IO, "io_base"); if (!res) return -EINVAL; |