On Thu, Feb 04, 2021 at 09:22:09PM -0700, Simon Glass wrote: > Using the internal vs. external pull resistors it is possible to get > 27 different combinations from 3 strapping pins. Add an implementation > of this. > > This involves updating the sandbox GPIO driver to model external and > (weaker) internal pull resistors. The get_value() method now takes account > of what is driving a pin: > > sandbox: GPIOD_EXT_DRIVEN - in which case GPIO_EXT_HIGH provides the > value > outside source - in which case GPIO_EXT_PULL_UP/DOWN indicates the > external state and we work the final state using those flags and > the internal GPIOD_PULL_UP/DOWN flags > > Of course the outside source does not really exist in sandbox. We are just > modelling it for test purpose. > > Signed-off-by: Simon Glass <s...@chromium.org>
Applied to u-boot/next, thanks! -- Tom
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