diff options
Diffstat (limited to 'drivers/i2c/busses/i2c-ibm_iic.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-ibm_iic.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c index 0599bbd65d93..1898e9987021 100644 --- a/drivers/i2c/busses/i2c-ibm_iic.c +++ b/drivers/i2c/busses/i2c-ibm_iic.c @@ -1,5 +1,5 @@ /* - * drivers/i2c/i2c-ibm_iic.c + * drivers/i2c/busses/i2c-ibm_iic.c * * Support for the IIC peripheral on IBM PPC 4xx * @@ -320,7 +320,7 @@ err: /* * IIC interrupt handler */ -static irqreturn_t iic_handler(int irq, void *dev_id, struct pt_regs *regs) +static irqreturn_t iic_handler(int irq, void *dev_id) { struct ibm_iic_private* dev = (struct ibm_iic_private*)dev_id; volatile struct iic_regs __iomem *iic = dev->vaddr; @@ -625,7 +625,7 @@ static u32 iic_func(struct i2c_adapter *adap) return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_10BIT_ADDR; } -static struct i2c_algorithm iic_algo = { +static const struct i2c_algorithm iic_algo = { .master_xfer = iic_xfer, .functionality = iic_func }; @@ -680,6 +680,12 @@ static int __devinit iic_probe(struct ocp_device *ocp){ dev->idx = ocp->def->index; ocp_set_drvdata(ocp, dev); + if (!request_mem_region(ocp->def->paddr, sizeof(struct iic_regs), + "ibm_iic")) { + ret = -EBUSY; + goto fail1; + } + if (!(dev->vaddr = ioremap(ocp->def->paddr, sizeof(struct iic_regs)))){ printk(KERN_CRIT "ibm-iic%d: failed to ioremap device registers\n", dev->idx); @@ -750,6 +756,8 @@ fail: iounmap(dev->vaddr); fail2: + release_mem_region(ocp->def->paddr, sizeof(struct iic_regs)); +fail1: ocp_set_drvdata(ocp, NULL); kfree(dev); return ret; @@ -777,6 +785,7 @@ static void __devexit iic_remove(struct ocp_device *ocp) free_irq(dev->irq, dev); } iounmap(dev->vaddr); + release_mem_region(ocp->def->paddr, sizeof(struct iic_regs)); kfree(dev); } } |