JZ4780_I2C_STA
regval = jz4780_i2c_readw(i2c, JZ4780_I2C_STA);
while ((jz4780_i2c_readw(i2c, JZ4780_I2C_STA)
i2c_sta = jz4780_i2c_readw(i2c, JZ4780_I2C_STA);
i2c_sta = jz4780_i2c_readw(i2c, JZ4780_I2C_STA);
i2c_sta = jz4780_i2c_readw(i2c, JZ4780_I2C_STA);