On Thu, Jan 14, 2016 at 12:28 PM, Simon Glass <s...@chromium.org> wrote: > The tegra GPIO controller has two ways of reading the value of a GPIO. It > can supply the 'input' value (which is the value read from the pin) and the > 'output' value (which is the value being driven from the pin. With a GPIO > set to output mode, the 'input' value is always low which is not very > useful. > > This has the unfortunate result that setting a GPIO high still leaves it > showing as low in the 'gpio status' command. > > Adjust the driver to check which direction the GPIO is set to, then read > the value from the appropriate register: 'input' for input GPIOs, 'output' > for output GPIOs. > > Signed-off-by: Simon Glass <s...@chromium.org>
Reviewed-by: Joe Hershberger <joe.hershber...@ni.com> _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
