diff options
| -rw-r--r-- | drivers/gpio/gpio-regmap.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-regmap.c b/drivers/gpio/gpio-regmap.c index 08f42ac4b89d..e5ba38e65c10 100644 --- a/drivers/gpio/gpio-regmap.c +++ b/drivers/gpio/gpio-regmap.c @@ -82,7 +82,11 @@ static int gpio_regmap_get(struct gpio_chip *chip, unsigned int offset) if (ret) return ret; - ret = regmap_read(gpio->regmap, reg, &val); + /* ensure we don't spoil any register cache with pin input values */ + if (gpio->reg_dat_base == gpio->reg_set_base) + ret = regmap_read_bypassed(gpio->regmap, reg, &val); + else + ret = regmap_read(gpio->regmap, reg, &val); if (ret) return ret; |