diff options
Diffstat (limited to 'drivers/gpio/gpio-palmas.c')
| -rw-r--r-- | drivers/gpio/gpio-palmas.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/gpio/gpio-palmas.c b/drivers/gpio/gpio-palmas.c index 09360c4b6386..8588af0f7661 100644 --- a/drivers/gpio/gpio-palmas.c +++ b/drivers/gpio/gpio-palmas.c @@ -43,9 +43,22 @@ static int palmas_gpio_get(struct gpio_chip *gc, unsigned offset) unsigned int val; int ret; - ret = palmas_read(palmas, PALMAS_GPIO_BASE, PALMAS_GPIO_DATA_IN, &val); + ret = palmas_read(palmas, PALMAS_GPIO_BASE, PALMAS_GPIO_DATA_DIR, &val); if (ret < 0) { - dev_err(gc->dev, "GPIO_DATA_IN read failed, err = %d\n", ret); + dev_err(gc->dev, "GPIO_DATA_DIR read failed, err = %d\n", ret); + return ret; + } + + if (val & (1 << offset)) { + ret = palmas_read(palmas, PALMAS_GPIO_BASE, + PALMAS_GPIO_DATA_OUT, &val); + } else { + ret = palmas_read(palmas, PALMAS_GPIO_BASE, + PALMAS_GPIO_DATA_IN, &val); + } + if (ret < 0) { + dev_err(gc->dev, "GPIO_DATA_IN/OUT read failed, err = %d\n", + ret); return ret; } return !!(val & BIT(offset)); |