On Thu, Dec 3, 2020 at 2:13 PM Stephan Gerhold <stephan@xxxxxxxxxxx> wrote: > The Samsung touchkey controllers are often used with external pull-up > for the interrupt line and the I2C lines, so we might need to enable > a regulator to bring the lines into usable state. Otherwise, this might > cause spurious interrupts and reading from I2C will fail. > > Document support for a "vddio-supply" that is enabled by the tm2-touchkey > driver so that the regulator gets enabled when needed. > > Cc: Linus Walleij <linus.walleij@xxxxxxxxxx> > Signed-off-by: Stephan Gerhold <stephan@xxxxxxxxxxx> Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx> > + vddio-supply: > + description: | > + Optional regulator that provides digital I/O voltage, > + e.g. for pulling up the interrupt line or the I2C pins. I think the funny pipe | us only needed when you want something to be fixed-width like ASCII art or ASCII tables. But no big deal I suppose. Yours, Linus Walleij
