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| author | Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> | 2020-02-14 15:57:12 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2020-02-21 15:19:42 +0100 |
| commit | 3c827873590c3f49c76d540c1e646135a11e0b4e (patch) | |
| tree | fad7c443cae1b9a290c710358922872324f89a8e /drivers/pinctrl/pinctrl-axp209.c | |
| parent | 8587b21c599e2874233cc5bbea7d0b18f4b62963 (diff) | |
| download | lwn-3c827873590c3f49c76d540c1e646135a11e0b4e.tar.gz lwn-3c827873590c3f49c76d540c1e646135a11e0b4e.zip | |
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-axp209.c')
| -rw-r--r-- | drivers/pinctrl/pinctrl-axp209.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/pinctrl/pinctrl-axp209.c b/drivers/pinctrl/pinctrl-axp209.c index be5b645815e5..207cbae3a7bf 100644 --- a/drivers/pinctrl/pinctrl-axp209.c +++ b/drivers/pinctrl/pinctrl-axp209.c @@ -149,13 +149,16 @@ static int axp20x_gpio_get_direction(struct gpio_chip *chip, * going to change the value soon anyway. Default to output. */ if ((val & AXP20X_GPIO_FUNCTIONS) > 2) - return 0; + return GPIO_LINE_DIRECTION_OUT; /* * The GPIO directions are the three lowest values. * 2 is input, 0 and 1 are output */ - return val & 2; + if (val & 2) + return GPIO_LINE_DIRECTION_IN; + + return GPIO_LINE_DIRECTION_OUT; } static int axp20x_gpio_output(struct gpio_chip *chip, unsigned int offset, |