• Przemyslaw Marczak's avatar
    sandbox: add: sandbox PMIC device drivers: I2C emul, pmic, regulator · 5d387d0d
    Przemyslaw Marczak authored
    This commit adds emulation of sandbox PMIC device, which includes:
    - PMIC I2C emulation driver
    - PMIC I/O driver (UCLASS_PMIC)
    - PMIC regulator driver (UCLASS_REGULATOR)
    The sandbox PMIC has 12 significant registers and 4 as padding to 16 bytes,
    which allows using 'i2c md' command with the default count (16).
    The sandbox PMIC provides regulators:
    - 2x BUCK
    - 2x LDO
    Each, with adjustable output:
    - Enable state
    - Voltage
    - Current limit (LDO1/BUCK1 only)
    - Operation mode (different for BUCK and LDO)
    Each attribute has it's own register, beside the enable state, which depends
    on operation mode.
    The header file: sandbox_pmic.h includes PMIC's default register values,
    which are set on i2c pmic emul driver's probe() method.
    Signed-off-by: default avatarPrzemyslaw Marczak <p.marczak@samsung.com>
    Acked-by: default avatarSimon Glass <sjg@chromium.org>
    Tested on sandbox:
    Tested-by: default avatarSimon Glass <sjg@chromium.org>
i2c_pmic_emul.c 3.29 KB