From 0ab56e20674b41dd0203d16b602aac8d9d26a70a Mon Sep 17 00:00:00 2001 From: Troy Kisky <troy.kisky@boundarydevices.com> Date: Mon, 14 Jul 2008 22:38:20 +0200 Subject: i2c-davinci: Remove useless IVR read Interrupts are enabled at the point where the DAVINCI_I2C_IVR_REG is read, so unless an interrupt happened just at that moment, no interrupt would be pending. Even though documentation implies you should do this, I see no reason. If slave support is added, this read would cause a hard to reproduce bug. Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com> Signed-off-by: Kevin Hilman <khilman@mvista.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> --- drivers/i2c/busses/i2c-davinci.c | 4 ---- 1 file changed, 4 deletions(-) (limited to 'drivers/i2c') diff --git a/drivers/i2c/busses/i2c-davinci.c b/drivers/i2c/busses/i2c-davinci.c index 85097fdc75e..c56f8fe4efe 100644 --- a/drivers/i2c/busses/i2c-davinci.c +++ b/drivers/i2c/busses/i2c-davinci.c @@ -240,7 +240,6 @@ i2c_davinci_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, int stop) struct davinci_i2c_dev *dev = i2c_get_adapdata(adap); struct davinci_i2c_platform_data *pdata = dev->dev->platform_data; u32 flag; - u32 stat; u16 w; int r; @@ -264,9 +263,6 @@ i2c_davinci_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, int stop) init_completion(&dev->cmd_complete); dev->cmd_err = 0; - /* Clear any pending interrupts by reading the IVR */ - stat = davinci_i2c_read_reg(dev, DAVINCI_I2C_IVR_REG); - /* Take I2C out of reset, configure it as master and set the * start bit */ flag = DAVINCI_I2C_MDR_IRS | DAVINCI_I2C_MDR_MST | DAVINCI_I2C_MDR_STT; -- cgit v1.2.3