At present the gpio command only shows GPIOs which are marked as in use.
This makes sense with 'gpio status' since we already have the '-a' flag
to indicate that all GPIOs should be shown. But when a particular GPIO is
requested, it seems better to always display it. At present the request is
simply ignored.
For example if GPIO a10 is not in use, then:
> gpio status a10
shows nothing, not even the function being used for that GPIO. With this
change, it shows the pin status:
> gpio status a10
a10: input: 0 [ ]
Add an extra parameter for this to avoid changing the existing flag
parameter.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: correct the 'gpio' command in the commit message]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
At present this file uses GPIO_OUTPUT and GPIO_INPUT as its sub-command
values. These are pretty generic names. Add a 'C' suffix to avoid possible
conflicts.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
gpio is defined as unsigned int. So we should use %u when calling printf().
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Some controllers do not allow the output value to be read. Detect this and
report the error in that case.
Signed-off-by: Simon Glass <sjg@chromium.org>
This is broken - we need to look at the first two characters to distinguish
'gpio status' from 'gpio set'.
Fixes: 0ffe6ab5 (gpio: Allow 's' as an abbreviation for 'status')
Reported-by: Soeren Moch <smoch@web.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Soeren Moch <smoch@web.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Hannes Schmelzer <oe5hpm@oevsv.at>
Now that they are in their own directory, we can remove this prefix.
This makes it easier to find a file since the prefix does not get in the
way.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Acked-by: Stefan Roese <sr@denx.de>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>
