diff options
| -rw-r--r-- | arch/powerpc/platforms/cell/axon_msi.c | 76 |
1 files changed, 34 insertions, 42 deletions
diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c index 095988f13bf..ea3dc8c64a3 100644 --- a/arch/powerpc/platforms/cell/axon_msi.c +++ b/arch/powerpc/platforms/cell/axon_msi.c @@ -13,7 +13,7 @@ #include <linux/kernel.h> #include <linux/pci.h> #include <linux/msi.h> -#include <linux/reboot.h> +#include <linux/of_platform.h> #include <asm/dcr.h> #include <asm/machdep.h> @@ -67,12 +67,9 @@ struct axon_msic { struct irq_host *irq_host; __le32 *fifo; dcr_host_t dcr_host; - struct list_head list; u32 read_offset; }; -static LIST_HEAD(axon_msic_list); - static void msic_dcr_write(struct axon_msic *msic, unsigned int dcr_n, u32 val) { pr_debug("axon_msi: dcr_write(0x%x, 0x%x)\n", val, dcr_n); @@ -292,30 +289,25 @@ static struct irq_host_ops msic_host_ops = { .map = msic_host_map, }; -static int axon_msi_notify_reboot(struct notifier_block *nb, - unsigned long code, void *data) +static int axon_msi_shutdown(struct of_device *device) { - struct axon_msic *msic; + struct axon_msic *msic = device->dev.platform_data; u32 tmp; - list_for_each_entry(msic, &axon_msic_list, list) { - pr_debug("axon_msi: disabling %s\n", - msic->irq_host->of_node->full_name); - tmp = dcr_read(msic->dcr_host, MSIC_CTRL_REG); - tmp &= ~MSIC_CTRL_ENABLE & ~MSIC_CTRL_IRQ_ENABLE; - msic_dcr_write(msic, MSIC_CTRL_REG, tmp); - } + pr_debug("axon_msi: disabling %s\n", + msic->irq_host->of_node->full_name); + tmp = dcr_read(msic->dcr_host, MSIC_CTRL_REG); + tmp &= ~MSIC_CTRL_ENABLE & ~MSIC_CTRL_IRQ_ENABLE; + msic_dcr_write(msic, MSIC_CTRL_REG, tmp); return 0; } -static struct notifier_block axon_msi_reboot_notifier = { - .notifier_call = axon_msi_notify_reboot -}; - -static int axon_msi_setup_one(struct device_node *dn) +static int axon_msi_probe(struct of_device *device, + const struct of_device_id *device_id) { struct page *page; + struct device_node *dn = device->node; struct axon_msic *msic; unsigned int virq; int dcr_base, dcr_len; @@ -385,7 +377,11 @@ static int axon_msi_setup_one(struct device_node *dn) MSIC_CTRL_IRQ_ENABLE | MSIC_CTRL_ENABLE | MSIC_CTRL_FIFO_SIZE); - list_add(&msic->list, &axon_msic_list); + device->dev.platform_data = msic; + + ppc_md.setup_msi_irqs = axon_msi_setup_msi_irqs; + ppc_md.teardown_msi_irqs = axon_msi_teardown_msi_irqs; + ppc_md.msi_check_device = axon_msi_check_device; printk(KERN_DEBUG "axon_msi: setup MSIC on %s\n", dn->full_name); @@ -402,28 +398,24 @@ out: return -1; } -static int axon_msi_init(void) -{ - struct device_node *dn; - int found = 0; - - pr_debug("axon_msi: initialising ...\n"); - - for_each_compatible_node(dn, NULL, "ibm,axon-msic") { - if (axon_msi_setup_one(dn) == 0) - found++; - } - - if (found) { - ppc_md.setup_msi_irqs = axon_msi_setup_msi_irqs; - ppc_md.teardown_msi_irqs = axon_msi_teardown_msi_irqs; - ppc_md.msi_check_device = axon_msi_check_device; - - register_reboot_notifier(&axon_msi_reboot_notifier); +static const struct of_device_id axon_msi_device_id[] = { + { + .compatible = "ibm,axon-msic" + }, + {} +}; - pr_debug("axon_msi: registered callbacks!\n"); - } +static struct of_platform_driver axon_msi_driver = { + .match_table = axon_msi_device_id, + .probe = axon_msi_probe, + .shutdown = axon_msi_shutdown, + .driver = { + .name = "axon-msi" + }, +}; - return 0; +static int __init axon_msi_init(void) +{ + return of_register_platform_driver(&axon_msi_driver); } -arch_initcall(axon_msi_init); +subsys_initcall(axon_msi_init); |