i2c_imx_bus_busy
i2c_imx_bus_busy(i2c_imx, 0, false);
i2c_imx_bus_busy(i2c_imx, 0, true);
ret = i2c_imx_bus_busy(i2c_imx, 0, false);
result = i2c_imx_bus_busy(i2c_imx, 1, atomic);
result = i2c_imx_bus_busy(i2c_imx, 1, atomic);
i2c_imx_bus_busy(i2c_imx, 0, atomic);