diff options
Diffstat (limited to 'drivers/i2c/busses/i2c-davinci.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-davinci.c | 37 |
1 files changed, 16 insertions, 21 deletions
diff --git a/drivers/i2c/busses/i2c-davinci.c b/drivers/i2c/busses/i2c-davinci.c index 4d961471912..6dc7ff5d3d9 100644 --- a/drivers/i2c/busses/i2c-davinci.c +++ b/drivers/i2c/busses/i2c-davinci.c @@ -17,10 +17,6 @@ * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * ---------------------------------------------------------------------------- * */ @@ -372,8 +368,7 @@ i2c_davinci_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, int stop) flag |= DAVINCI_I2C_MDR_STP; davinci_i2c_write_reg(dev, DAVINCI_I2C_MDR_REG, flag); - r = wait_for_completion_interruptible_timeout(&dev->cmd_complete, - dev->adapter.timeout); + r = wait_for_completion_timeout(&dev->cmd_complete, dev->adapter.timeout); if (r == 0) { dev_err(dev->dev, "controller timed out\n"); davinci_i2c_recover_bus(dev); @@ -384,7 +379,6 @@ i2c_davinci_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, int stop) if (dev->buf_len) { /* This should be 0 if all bytes were transferred * or dev->cmd_err denotes an error. - * A signal may have aborted the transfer. */ if (r >= 0) { dev_err(dev->dev, "abnormal termination buf_len=%i\n", @@ -411,11 +405,9 @@ i2c_davinci_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, int stop) if (dev->cmd_err & DAVINCI_I2C_STR_NACK) { if (msg->flags & I2C_M_IGNORE_NAK) return msg->len; - if (stop) { - w = davinci_i2c_read_reg(dev, DAVINCI_I2C_MDR_REG); - w |= DAVINCI_I2C_MDR_STP; - davinci_i2c_write_reg(dev, DAVINCI_I2C_MDR_REG, w); - } + w = davinci_i2c_read_reg(dev, DAVINCI_I2C_MDR_REG); + w |= DAVINCI_I2C_MDR_STP; + davinci_i2c_write_reg(dev, DAVINCI_I2C_MDR_REG, w); return -EREMOTEIO; } return -EIO; @@ -640,13 +632,17 @@ static int davinci_i2c_probe(struct platform_device *pdev) { struct davinci_i2c_dev *dev; struct i2c_adapter *adap; - struct resource *mem, *irq; - int r; - - irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - if (!irq) { - dev_err(&pdev->dev, "no irq resource?\n"); - return -ENODEV; + struct resource *mem; + int r, irq; + + irq = platform_get_irq(pdev, 0); + if (irq <= 0) { + if (!irq) + irq = -ENXIO; + if (irq != -EPROBE_DEFER) + dev_err(&pdev->dev, + "can't get irq resource ret=%d\n", irq); + return irq; } dev = devm_kzalloc(&pdev->dev, sizeof(struct davinci_i2c_dev), @@ -661,7 +657,7 @@ static int davinci_i2c_probe(struct platform_device *pdev) init_completion(&dev->xfr_complete); #endif dev->dev = &pdev->dev; - dev->irq = irq->start; + dev->irq = irq; dev->pdata = dev_get_platdata(&pdev->dev); platform_set_drvdata(pdev, dev); @@ -793,7 +789,6 @@ static struct platform_driver davinci_i2c_driver = { .remove = davinci_i2c_remove, .driver = { .name = "i2c_davinci", - .owner = THIS_MODULE, .pm = davinci_i2c_pm_ops, .of_match_table = davinci_i2c_of_match, }, |