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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. Signed-off-by: Stephan Gerhold <stephan@gerhold.net> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20201203131242.44397-2-stephan@gerhold.net Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> |
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| .. | ||
| bindings | ||
| booting-without-of.rst | ||
| changesets.rst | ||
| dynamic-resolution-notes.rst | ||
| index.rst | ||
| of_unittest.rst | ||
| overlay-notes.rst | ||
| usage-model.rst | ||
| writing-schema.rst | ||