> --- a/drivers/i2c/busses/i2c-imx.c
> +++ b/drivers/i2c/busses/i2c-imx.c
> @@ -268,6 +268,14 @@ static int i2c_imx_bus_busy(struct imx_i2c_struct *i2c_imx, int for_busy)
>
> while (1) {
> temp = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2SR);
> +
> + /** check for arbitration lost **/
One '*' is enough on each side.
> + if (temp & I2SR_IAL) {
> + temp &= ~I2SR_IAL;
> + imx_i2c_write_reg(temp, i2c_imx, IMX_I2C_I2SR);
> + return -EIO;
Documentation/i2c/fault-codes defines 'EAGAIN' for arbitration lost.
> + }
> +
> if (for_busy && (temp & I2SR_IBB))
> break;
> if (!for_busy && !(temp & I2SR_IBB))
> --
> 1.9.1
>
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