If argc is not < 3, it must be >= 3.
If argc >= 3, argv[2] cannot be NULL.
Fixes: 9de612ae4d ("cmd: adc: Add support for storing ADC result in env variable")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Add the ability to save ADC conversion result in an environment
variable. This is useful for further arbitrary processing by the
U-Boot scripts.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reporting the return value should always be done on error conditions,
this way the developer can start debugging issues with more knowledge
in-hand.
Signed-off-by: Samuel Dionne-Riel <samuel@dionne-riel.com>
We should not use typedefs in U-Boot. They cannot be used as forward
declarations which means that header files must include the full header to
access them.
Drop the typedef and rename the struct to remove the _s suffix which is
now not useful.
This requires quite a few header-file additions.
Signed-off-by: Simon Glass <sjg@chromium.org>
And you get sub-command auto-completion for free.
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Add new option to 'adc' command to do a single scan of:
- some channel(s), using mask argument
- all channels available on an ADC device (when optional mask is omitted).
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Use newly introduced adc_raw_to_uV() API to print conversion result
both as raw value and micro-volts by default.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Enhance adc info command to report also the channel mask.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
