• Chen-Yu Tsai's avatar
    mfd: axp20x: Split the driver into core and i2c bits · 4fd41151
    Chen-Yu Tsai authored
    The axp20x driver assumes the device is i2c based. This is not the
    case with later chips, which use a proprietary 2 wire serial bus
    by Allwinner called "Reduced Serial Bus".
    
    This patch follows the example of mfd/wm831x and splits it into
    an interface independent core, and an i2c specific glue layer.
    MFD_AXP20X and the new MFD_AXP20X_I2C are changed to tristate
    symbols, allowing the driver to be built as modules.
    
    Whitespace and other style errors in the moved i2c specific code
    have been fixed. Included but unused header files are removed as
    well.
    Signed-off-by: default avatarChen-Yu Tsai <wens@csie.org>
    Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
    4fd41151
axp20x-i2c.c 2.68 KB