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drivers: gpio: pca-series: Reset device before register access

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Reset the port expander before accessing any register
or updating the cache.

Signed-off-by: Lars Thiemann <thiemann@cognid.de>
This commit is contained in:
Lars Thiemann 2025-05-09 13:22:16 +02:00 • committed by Benjamin Cabé
commit 13fe09c5b9
1 changed files with 5 additions and 4 deletions
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9
drivers/gpio/gpio_pca_series.c
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@ -1684,6 +1684,11 @@ static int gpio_pca_series_init(const struct device *dev)
LOG_ERR("i2c bus device not found"); LOG_ERR("i2c bus device not found");
goto out_bus; goto out_bus;
} }
/** device reset */
gpio_pca_series_reset(dev);
LOG_DBG("device reset done");
#ifdef GPIO_NXP_PCA_SERIES_DEBUG #ifdef GPIO_NXP_PCA_SERIES_DEBUG
# ifdef CONFIG_GPIO_PCA_SERIES_CACHE_ALL # ifdef CONFIG_GPIO_PCA_SERIES_CACHE_ALL
gpio_pca_series_cache_test(dev); gpio_pca_series_cache_test(dev);
@ -1702,10 +1707,6 @@ static int gpio_pca_series_init(const struct device *dev)
} }
LOG_DBG("cache init done"); LOG_DBG("cache init done");
/** device reset */
gpio_pca_series_reset(dev);
LOG_DBG("device reset done");
/** configure interrupt */ /** configure interrupt */
#ifdef CONFIG_GPIO_PCA_SERIES_INTERRUPT #ifdef CONFIG_GPIO_PCA_SERIES_INTERRUPT
/** save dev pointer */ /** save dev pointer */