[PATCH 1/3] gpio: Allow to print pin's label even for pin with GPIOF_FUNC function

[Simon Glass]

On Tue, 2 Aug 2022 at 03:09, Patrice Chotard
<patrice.chotard at foss.st.com> wrote:
>
> Currently, if pin's function is GPIOF_FUNC, only "func" if displayed
> without any other information. It would be interesting, if information is
> available, to indicate which pinmuxing's name is used.
>
> For example, for STM32 SoC's based platform, "gpio status" command
> output :
>
>    before
>     Bank GPIOZ:
>       GPIOZ0: unused : 0 [ ]
>       GPIOZ1: unused : 0 [ ]
>       GPIOZ2: unused : 0 [ ]
>       GPIOZ3: unused : 0 [ ]
>       GPIOZ4: func
>       GPIOZ5: func
>       GPIOZ6: unused : 0 [ ]
>       GPIOZ7: unused : 0 [ ]
>       GPIOZ8: unknown
>       GPIOZ9: unknown
>       GPIOZ10: unknown
>       GPIOZ11: unknown
>       GPIOZ12: unknown
>       GPIOZ13: unknown
>       GPIOZ14: unknown
>       GPIOZ15: unknown
>
>    After
>     Bank GPIOZ:
>       GPIOZ0: unused : 0 [ ]
>       GPIOZ1: unused : 0 [ ]
>       GPIOZ2: unused : 0 [ ]
>       GPIOZ3: unused : 0 [ ]
>       GPIOZ4: func i2c4-0
>       GPIOZ5: func i2c4-0
>       GPIOZ6: unused : 0 [ ]
>       GPIOZ7: unused : 0 [ ]
>       GPIOZ8: unknown
>       GPIOZ9: unknown
>       GPIOZ10: unknown
>       GPIOZ11: unknown
>       GPIOZ12: unknown
>       GPIOZ13: unknown
>       GPIOZ14: unknown
>       GPIOZ15: unknown
>
> Signed-off-by: Patrice Chotard <patrice.chotard at foss.st.com>
> ---
>
>  drivers/gpio/gpio-uclass.c | 16 +++++++++++-----
>  1 file changed, 11 insertions(+), 5 deletions(-)

Reviewed-by: Simon Glass <sjg at chromium.org>

Do you think you could create a basic test for the gpio command? See
test/dm/acpi.c for an example.

Regards,
Simon