diff options
| author | Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> | 2020-02-14 16:57:12 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2020-02-21 17:19:42 +0300 |
| commit | 3c827873590c3f49c76d540c1e646135a11e0b4e (patch) | |
| tree | fad7c443cae1b9a290c710358922872324f89a8e /drivers/pinctrl/pinctrl-sx150x.c | |
| parent | 8587b21c599e2874233cc5bbea7d0b18f4b62963 (diff) | |
| download | linux-3c827873590c3f49c76d540c1e646135a11e0b4e.tar.xz | |
pinctrl: Use new GPIO_LINE_DIRECTION
Use newly added GPIO defines GPIO_LINE_DIRECTION_IN and
GPIO_LINE_DIRECTION_OUT instead of using hard-coded 1 and 0.
Main benefit is to make it easier to see which values mean IN and which
OUT. As a side effect this helps GPIO framework to change the direction
defines to something else if ever needed.
Please note that return value from get_direction call on
pinctrl-axp209 driver was changed. Previously pinctrl-axp209 might have
returned value 2 for direction INPUT.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Reported-by: kbuild test robot <lkp@intel.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Link: https://lore.kernel.org/r/20200214135712.GA14557@localhost.localdomain
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/pinctrl-sx150x.c')
| -rw-r--r-- | drivers/pinctrl/pinctrl-sx150x.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/pinctrl/pinctrl-sx150x.c b/drivers/pinctrl/pinctrl-sx150x.c index 566665931a04..6e74bd87d959 100644 --- a/drivers/pinctrl/pinctrl-sx150x.c +++ b/drivers/pinctrl/pinctrl-sx150x.c @@ -391,13 +391,16 @@ static int sx150x_gpio_get_direction(struct gpio_chip *chip, int ret; if (sx150x_pin_is_oscio(pctl, offset)) - return false; + return GPIO_LINE_DIRECTION_OUT; ret = regmap_read(pctl->regmap, pctl->data->reg_dir, &value); if (ret < 0) return ret; - return !!(value & BIT(offset)); + if (value & BIT(offset)) + return GPIO_LINE_DIRECTION_IN; + + return GPIO_LINE_DIRECTION_OUT; } static int sx150x_gpio_get(struct gpio_chip *chip, unsigned int offset) @@ -687,7 +690,7 @@ static int sx150x_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin, if (ret < 0) return ret; - if (ret) + if (ret == GPIO_LINE_DIRECTION_IN) return -EINVAL; ret = sx150x_gpio_get(&pctl->gpio, pin); |