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author | Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> | 2020-02-14 15:57:12 +0200 |
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committer | Linus Walleij <linus.walleij@linaro.org> | 2020-02-21 15:19:42 +0100 |
commit | 3c827873590c3f49c76d540c1e646135a11e0b4e (patch) | |
tree | fad7c443cae1b9a290c710358922872324f89a8e /drivers/pinctrl/pinctrl-amd.c | |
parent | 8587b21c599e2874233cc5bbea7d0b18f4b62963 (diff) | |
download | linux-3c827873590c3f49c76d540c1e646135a11e0b4e.tar.gz |
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-amd.c')
-rw-r--r-- | drivers/pinctrl/pinctrl-amd.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c index 73aff6591de2..1fe62a35bb12 100644 --- a/drivers/pinctrl/pinctrl-amd.c +++ b/drivers/pinctrl/pinctrl-amd.c @@ -46,7 +46,10 @@ static int amd_gpio_get_direction(struct gpio_chip *gc, unsigned offset) pin_reg = readl(gpio_dev->base + offset * 4); raw_spin_unlock_irqrestore(&gpio_dev->lock, flags); - return !(pin_reg & BIT(OUTPUT_ENABLE_OFF)); + if (pin_reg & BIT(OUTPUT_ENABLE_OFF)) + return GPIO_LINE_DIRECTION_OUT; + + return GPIO_LINE_DIRECTION_IN; } static int amd_gpio_direction_input(struct gpio_chip *gc, unsigned offset) |