PMIC device class and stub BD71837 (Maaxboard) driver#664
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Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au> Timer tests out with acacia Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au> Serial tests out with Acacia Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au> Refactor: acacia_sddf is now a python module that inherits all subfiles, sDDF itself is a python module for import! Needed for SDK Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au> Fix issues with i2c.py - maps were swapped. Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au> Further fixes to keep up with Acacia PR request changes Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au>
Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au>
Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au>
Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au>
Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au>
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Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au>
Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au>
Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au>
Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au>
Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au>
Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au>
Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au>
add returh of data handler to imx i2c update i2c imx registers to align with data sheet memory map update i2c imx init step to use fast-mode divider add notes on i2c clock calculation update i2c imx driver to send start when await start update imx i2c address cycle handling add transmit successful check update boards.py to contain i2c region for imx add read handling in state_cmd_ret for i2c imx update i2c imx to set TXAK register when reading second to last byte
Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au>
…r why. Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au>
Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au>
Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au>
…orts only the subset of features needed for contract deliverable (DVFS) Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au>
Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au>
Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au>
Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au>
Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au>
Signed-off-by: Lesley Rossouw <lesley.rossouw@unsw.edu.au>
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This PR adds a PMIC (power management IC) driver class and an implementation for a common chip (BD71837) used by imx8m platforms.
The PMIC class is logically a like a regulator class, but needs to be a bit more involved given that a power management IC is an external peripheral that can offer more functionality than simple regulators. Using PPCs, the PMIC class offers the current functions:
For now, I have omitted any control over running modes other than "run" ... i.e. no idle, suspend or low power mode controls are currently supported as these are overtly dangerous to touch without more supporting infrastructure. We would probably want a more powerful LionsOS power subsystem design that can have awareness of how to coordinate the clock tree, internal power tree, internal regulators and PMIC all together.
The BD71837 driver only supports setting voltages at the time of writing as we require this functionality for a contract deliverable.
To do before merging: