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gpio: Warn about invalid GPIOs used with the 'gpio' command

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At present there is no indication that an invalid GPIO is used except that
the GPIO status is not displayed. Make the error more explicit to avoid
confusion.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2016-01-21 19:44:50 -07:00
parent 35a1f0dfa1
commit 66280e82f7
1 changed files with 3 additions and 1 deletions
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4
common/cmd_gpio.c
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@ -174,8 +174,10 @@ static int do_gpio(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
* GPIO compatibility layer. * GPIO compatibility layer.
*/ */
ret = gpio_lookup_name(str_gpio, NULL, NULL, &gpio); ret = gpio_lookup_name(str_gpio, NULL, NULL, &gpio);
if (ret) if (ret) {
printf("GPIO: '%s' not found\n", str_gpio);
return cmd_process_error(cmdtp, ret); return cmd_process_error(cmdtp, ret);
}
#else #else
/* turn the gpio name into a gpio number */ /* turn the gpio name into a gpio number */
gpio = name_to_gpio(str_gpio); gpio = name_to_gpio(str_gpio);