gpio: intel-mid: Fix build warning when !CONFIG_PM
The only usage of function intel_gpio_runtime_idle() is here (in the same file): static const struct dev_pm_ops intel_gpio_pm_ops = { SET_RUNTIME_PM_OPS(NULL, NULL, intel_gpio_runtime_idle) }; And when CONFIG_PM is not set, the macro SET_RUNTIME_PM_OPS expands to nothing, causing the following compiler warning: drivers/gpio/gpio-intel-mid.c:324:12: warning: ‘intel_gpio_runtime_idle’ defined but not used [-Wunused-function] static int intel_gpio_runtime_idle(struct device *dev) Fix it by annotating the function with __maybe_unused. Signed-off-by: Augusto Mecking Caringi <augustocaringi@gmail.com> Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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@ -321,7 +321,7 @@ static void intel_mid_irq_init_hw(struct intel_mid_gpio *priv)
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}
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}
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}
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}
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static int intel_gpio_runtime_idle(struct device *dev)
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static int __maybe_unused intel_gpio_runtime_idle(struct device *dev)
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{
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{
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int err = pm_schedule_suspend(dev, 500);
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int err = pm_schedule_suspend(dev, 500);
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return err ?: -EBUSY;
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return err ?: -EBUSY;
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