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gpio: Fix GPIO expanders warnings

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- ISO1H812G is *output* only expander, not input.
- Warning make sense when we try to set the expander the wrong way.

Signed-off-by: Jiri Vlasak <jvlasak@elektroline.cz>
This commit is contained in:
Jiri Vlasak 2026-07-31 11:52:18 +02:00 • committed by Xiang Xiao
parent 0281e71cf8
commit e50a2d34d2
2 changed files with 14 additions and 5 deletions
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11
drivers/ioexpander/iso1h812g.c
View file

@ -181,8 +181,8 @@ static void iso1h812g_deselect(FAR struct spi_dev_s *spi,
* Name: iso1h812g_direction
*
* Description:
* ISO1H812G is only input pin. However interface is provided in order
* to avoid system falls if called.
* ISO1H812G is only output expander. However interface is provided in
* order to avoid system falls if called.
*
* Input Parameters:
* dev - Device-specific state data
@ -201,7 +201,12 @@ static int iso1h812g_direction(FAR struct ioexpander_dev_s *dev,
DEBUGASSERT(priv != NULL && priv->config != NULL);
gpiowarn("WARNING: ISO1H812G is only input expander!\n");
if (IOEXPANDER_DIRECTION_IN == direction
|| IOEXPANDER_DIRECTION_IN_PULLUP == direction
|| IOEXPANDER_DIRECTION_IN_PULLDOWN == direction)
{
gpiowarn("WARNING: ISO1H812G is only output expander!\n");
}
return OK;
}

8
drivers/ioexpander/iso1i813t.c
View file

@ -180,7 +180,7 @@ static void iso1i813t_deselect(FAR struct spi_dev_s *spi,
* Name: iso1i813t_direction
*
* Description:
* ISO1I813T is only input pin. However interface is provided in order
* ISO1I813T is only input expander. However interface is provided in order
* to avoid system falls if called.
*
* Input Parameters:
@ -200,7 +200,11 @@ static int iso1i813t_direction(FAR struct ioexpander_dev_s *dev,
DEBUGASSERT(priv != NULL && priv->config != NULL);
gpiowarn("WARNING: ISO1I813T is only input expander!\n");
if (IOEXPANDER_DIRECTION_OUT == direction
|| IOEXPANDER_DIRECTION_OUT_OPENDRAIN == direction)
{
gpiowarn("WARNING: ISO1I813T is only input expander!\n");
}
return OK;
}