stm32f7_i2c_clr_bits
stm32f7_i2c_clr_bits(base + STM32F7_I2C_CR2, mask);
stm32f7_i2c_clr_bits(base + STM32F7_I2C_CR1, mask);
stm32f7_i2c_clr_bits(base + STM32F7_I2C_CR1, mask);
stm32f7_i2c_clr_bits(base + STM32F7_I2C_CR2, STM32F7_I2C_CR2_NACK);
stm32f7_i2c_clr_bits(base + STM32F7_I2C_OAR1, mask);
stm32f7_i2c_clr_bits(base + STM32F7_I2C_OAR2, mask);
stm32f7_i2c_clr_bits(i2c_dev->base + STM32F7_I2C_CR1, STM32_I2C_CR1_FMP);
stm32f7_i2c_clr_bits(base + STM32F7_I2C_CR1,
stm32f7_i2c_clr_bits(base + STM32F7_I2C_CR1,
stm32f7_i2c_clr_bits(i2c_dev->base + STM32F7_I2C_CR1,
stm32f7_i2c_clr_bits(i2c_dev->base + STM32F7_I2C_CR1, mask);
stm32f7_i2c_clr_bits(base + STM32F7_I2C_CR1, mask);
stm32f7_i2c_clr_bits(i2c_dev->base + STM32F7_I2C_CR1,
stm32f7_i2c_clr_bits(i2c_dev->base + STM32F7_I2C_CR1,
stm32f7_i2c_clr_bits(i2c_dev->base + STM32F7_I2C_CR1,