* [PATCH] doc: Add gpio status output fields description
@ 2022-08-30 14:56 Patrice Chotard
2022-08-30 15:56 ` Simon Glass
0 siblings, 1 reply; 2+ messages in thread
From: Patrice Chotard @ 2022-08-30 14:56 UTC (permalink / raw)
To: u-boot
Cc: Patrice CHOTARD, Patrick DELAUNAY, U-Boot STM32, Heinrich Schuchardt
Add gpio status output fields description and one output example.
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
---
doc/usage/cmd/gpio.rst | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/doc/usage/cmd/gpio.rst b/doc/usage/cmd/gpio.rst
index f6a5668388..b768b08a9b 100644
--- a/doc/usage/cmd/gpio.rst
+++ b/doc/usage/cmd/gpio.rst
@@ -45,6 +45,17 @@ gpio status
Display the status of one or multiple GPIOs. By default only claimed GPIOs
are displayed.
+gpio status command output fields are : [name]: [function]: [value] [x] [label]
+
+[function] can be:
+ - "output" : pin configured in gpio output.
+ - "input" : pin configured in gpio input.
+ - "func" : pin configured in alternate function, followed by [label]
+ which shows pinmuxing label.
+ - "unused" : pin not configured.
+
+For [function] "output" or "input", [value] field indicates pin's level,
+[x] or [ ] indicates respectively if gpio is used or not, [label] shows gpio label.
-a
Display GPIOs irrespective of being claimed.
@@ -77,6 +88,21 @@ Switch the status of a GPIO::
=> echo $myvar
0
+ => gpio status
+ Bank GPIOA:
+ GPIOA1: func rgmii-0
+ GPIOA2: func rgmii-0
+ GPIOA7: func rgmii-0
+ GPIOA10: output: 0 [x] hdmi-transmitter@39.reset-gpios
+ GPIOA13: output: 1 [x] red.gpios
+
+ Bank GPIOB:
+ GPIOB0: func rgmii-0
+ GPIOB1: func rgmii-0
+ GPIOB2: func uart4-0
+ GPIOB7: input: 0 [x] mmc@58005000.cd-gpios
+ GPIOB11: func rgmii-0
+
Configuration
-------------
--
2.25.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] doc: Add gpio status output fields description
2022-08-30 14:56 [PATCH] doc: Add gpio status output fields description Patrice Chotard
@ 2022-08-30 15:56 ` Simon Glass
0 siblings, 0 replies; 2+ messages in thread
From: Simon Glass @ 2022-08-30 15:56 UTC (permalink / raw)
To: Patrice Chotard
Cc: U-Boot Mailing List, Patrick DELAUNAY, U-Boot STM32, Heinrich Schuchardt
On Tue, 30 Aug 2022 at 08:56, Patrice Chotard
<patrice.chotard@foss.st.com> wrote:
>
> Add gpio status output fields description and one output example.
>
> Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
> ---
>
> doc/usage/cmd/gpio.rst | 26 ++++++++++++++++++++++++++
> 1 file changed, 26 insertions(+)
Reviewed-by: Simon Glass <sjg@chromium.org>
^ permalink raw reply [flat|nested] 2+ messages in thread
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