diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/i2c/busses/i2c-mpc.c | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c index d41ca31dbcb..03c23ce98ed 100644 --- a/drivers/i2c/busses/i2c-mpc.c +++ b/drivers/i2c/busses/i2c-mpc.c @@ -20,13 +20,7 @@ #include <linux/init.h> #include <linux/pci.h> #include <asm/io.h> -#ifdef CONFIG_FSL_OCP -#include <asm/ocp.h> -#define FSL_I2C_DEV_SEPARATE_DFSRR FS_I2C_SEPARATE_DFSRR -#define FSL_I2C_DEV_CLOCK_5200 FS_I2C_CLOCK_5200 -#else #include <linux/fsl_devices.h> -#endif #include <linux/i2c.h> #include <linux/interrupt.h> #include <linux/delay.h> @@ -294,204 +288,6 @@ static struct i2c_adapter mpc_ops = { .retries = 1 }; -#ifdef CONFIG_FSL_OCP -static int __devinit mpc_i2c_probe(struct ocp_device *ocp) -{ - int result = 0; - struct mpc_i2c *i2c; - - if (!(i2c = kmalloc(sizeof(*i2c), GFP_KERNEL))) { - return -ENOMEM; - } - memset(i2c, 0, sizeof(*i2c)); - - i2c->irq = ocp->def->irq; - i2c->flags = ((struct ocp_fs_i2c_data *)ocp->def->additions)->flags; - init_waitqueue_head(&i2c->queue); - - if (!request_mem_region(ocp->def->paddr, MPC_I2C_REGION, "i2c-mpc")) { - printk(KERN_ERR "i2c-mpc - resource unavailable\n"); - return -ENODEV; - } - - i2c->base = ioremap(ocp->def->paddr, MPC_I2C_REGION); - - if (!i2c->base) { - printk(KERN_ERR "i2c-mpc - failed to map controller\n"); - result = -ENOMEM; - goto fail_map; - } - - if (i2c->irq != OCP_IRQ_NA) - { - if ((result = request_irq(ocp->def->irq, mpc_i2c_isr, - SA_SHIRQ, "i2c-mpc", i2c)) < 0) { - printk(KERN_ERR - "i2c-mpc - failed to attach interrupt\n"); - goto fail_irq; - } - } else - i2c->irq = 0; - - mpc_i2c_setclock(i2c); - ocp_set_drvdata(ocp, i2c); - - i2c->adap = mpc_ops; - i2c_set_adapdata(&i2c->adap, i2c); - - if ((result = i2c_add_adapter(&i2c->adap)) < 0) { - printk(KERN_ERR "i2c-mpc - failed to add adapter\n"); - goto fail_add; - } - - return result; - - fail_add: - if (ocp->def->irq != OCP_IRQ_NA) - free_irq(ocp->def->irq, 0); - fail_irq: - iounmap(i2c->base); - fail_map: - release_mem_region(ocp->def->paddr, MPC_I2C_REGION); - kfree(i2c); - return result; -} -static void __devexit mpc_i2c_remove(struct ocp_device *ocp) -{ - struct mpc_i2c *i2c = ocp_get_drvdata(ocp); - i2c_del_adapter(&i2c->adap); - ocp_set_drvdata(ocp, NULL); - - if (ocp->def->irq != OCP_IRQ_NA) - free_irq(i2c->irq, i2c); - iounmap(i2c->base); - release_mem_region(ocp->def->paddr, MPC_I2C_REGION); - kfree(i2c); -} - -static struct ocp_device_id mpc_iic_ids[] __devinitdata = { - {.vendor = OCP_VENDOR_FREESCALE,.function = OCP_FUNC_IIC}, - {.vendor = OCP_VENDOR_INVALID} -}; - -MODULE_DEVICE_TABLE(ocp, mpc_iic_ids); - -static struct ocp_driver mpc_iic_driver = { - .name = "iic", - .id_table = mpc_iic_ids, - .probe = mpc_i2c_probe, - .remove = __devexit_p(mpc_i2c_remove) -}; - -static int __init iic_init(void) -{ - return ocp_register_driver(&mpc_iic_driver); -} - -static void __exit iic_exit(void) -{ - ocp_unregister_driver(&mpc_iic_driver); -} - -module_init(iic_init); -module_exit(iic_exit); -#else -static int fsl_i2c_probe(struct device *device) -{ - int result = 0; - struct mpc_i2c *i2c; - struct platform_device *pdev = to_platform_device(device); - struct fsl_i2c_platform_data *pdata; - struct resource *r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - - pdata = (struct fsl_i2c_platform_data *) pdev->dev.platform_data; - - if (!(i2c = kmalloc(sizeof(*i2c), GFP_KERNEL))) { - return -ENOMEM; - } - memset(i2c, 0, sizeof(*i2c)); - - i2c->irq = platform_get_irq(pdev, 0); - i2c->flags = pdata->device_flags; - init_waitqueue_head(&i2c->queue); - - i2c->base = ioremap((phys_addr_t)r->start, MPC_I2C_REGION); - - if (!i2c->base) { - printk(KERN_ERR "i2c-mpc - failed to map controller\n"); - result = -ENOMEM; - goto fail_map; - } - - if (i2c->irq != 0) - if ((result = request_irq(i2c->irq, mpc_i2c_isr, - SA_SHIRQ, "i2c-mpc", i2c)) < 0) { - printk(KERN_ERR - "i2c-mpc - failed to attach interrupt\n"); - goto fail_irq; - } - - mpc_i2c_setclock(i2c); - dev_set_drvdata(device, i2c); - - i2c->adap = mpc_ops; - i2c_set_adapdata(&i2c->adap, i2c); - i2c->adap.dev.parent = &pdev->dev; - if ((result = i2c_add_adapter(&i2c->adap)) < 0) { - printk(KERN_ERR "i2c-mpc - failed to add adapter\n"); - goto fail_add; - } - - return result; - - fail_add: - if (i2c->irq != 0) - free_irq(i2c->irq, NULL); - fail_irq: - iounmap(i2c->base); - fail_map: - kfree(i2c); - return result; -}; - -static int fsl_i2c_remove(struct device *device) -{ - struct mpc_i2c *i2c = dev_get_drvdata(device); - - i2c_del_adapter(&i2c->adap); - dev_set_drvdata(device, NULL); - - if (i2c->irq != 0) - free_irq(i2c->irq, i2c); - - iounmap(i2c->base); - kfree(i2c); - return 0; -}; - -/* Structure for a device driver */ -static struct device_driver fsl_i2c_driver = { - .name = "fsl-i2c", - .bus = &platform_bus_type, - .probe = fsl_i2c_probe, - .remove = fsl_i2c_remove, -}; - -static int __init fsl_i2c_init(void) -{ - return driver_register(&fsl_i2c_driver); -} - -static void __exit fsl_i2c_exit(void) -{ - driver_unregister(&fsl_i2c_driver); -} - -module_init(fsl_i2c_init); -module_exit(fsl_i2c_exit); - -#endif /* CONFIG_FSL_OCP */ - MODULE_AUTHOR("Adrian Cox <adrian@humboldt.co.uk>"); MODULE_DESCRIPTION ("I2C-Bus adapter for MPC107 bridge and MPC824x/85xx/52xx processors"); 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