[U-Boot] [PATCH v2 02/37] gpio: Warn about invalid GPIOs used with the 'gpio' command

Simon Glass sjg at chromium.org
Fri Jan 22 03:44:50 CET 2016


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 at chromium.org>
---

Changes in v2: None

 common/cmd_gpio.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/common/cmd_gpio.c b/common/cmd_gpio.c
index bb0f63a..2b78b16 100644
--- a/common/cmd_gpio.c
+++ b/common/cmd_gpio.c
@@ -174,8 +174,10 @@ static int do_gpio(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	 * GPIO compatibility layer.
 	 */
 	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);
+	}
 #else
 	/* turn the gpio name into a gpio number */
 	gpio = name_to_gpio(str_gpio);
-- 
2.7.0.rc3.207.g0ac5344



More information about the U-Boot mailing list