* I2C driver docs
- Added I2C driver docs.
- Changed arm master i2c driver to have a weak i2c_init as it is impossible to account for all possible port configuration in the STM32 world.
* Update docs/i2c_driver.md
Co-Authored-By: yiancar <yiangosyiangou@cytanet.com.cy>
* Update docs/i2c_driver.md
Co-Authored-By: yiancar <yiangosyiangou@cytanet.com.cy>
* Update docs/i2c_driver.md
Co-Authored-By: yiancar <yiangosyiangou@cytanet.com.cy>
* Update docs/i2c_driver.md
Co-Authored-By: yiancar <yiangosyiangou@cytanet.com.cy>
* GPIO release fix
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