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gpio: xgene: mark PM functions as __maybe_unused
When CONFIG_PM_SLEEP is disabled, we get a warning about unused functions: drivers/gpio/gpio-xgene.c:155:12: warning: 'xgene_gpio_resume' defined but not used [-Wunused-function] static int xgene_gpio_resume(struct device *dev) ^~~~~~~~~~~~~~~~~ drivers/gpio/gpio-xgene.c:142:12: warning: 'xgene_gpio_suspend' defined but not used [-Wunused-function] static int xgene_gpio_suspend(struct device *dev) The warnings are harmless and can be avoided by simplifying the code and marking the functions as __maybe_unused. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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@ -42,9 +42,7 @@ struct xgene_gpio {
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struct gpio_chip chip;
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void __iomem *base;
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spinlock_t lock;
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#ifdef CONFIG_PM
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u32 set_dr_val[XGENE_MAX_GPIO_BANKS];
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#endif
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};
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static int xgene_gpio_get(struct gpio_chip *gc, unsigned int offset)
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@ -138,8 +136,7 @@ static int xgene_gpio_dir_out(struct gpio_chip *gc,
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return 0;
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}
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#ifdef CONFIG_PM
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static int xgene_gpio_suspend(struct device *dev)
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static __maybe_unused int xgene_gpio_suspend(struct device *dev)
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{
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struct xgene_gpio *gpio = dev_get_drvdata(dev);
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unsigned long bank_offset;
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@ -152,7 +149,7 @@ static int xgene_gpio_suspend(struct device *dev)
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return 0;
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}
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static int xgene_gpio_resume(struct device *dev)
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static __maybe_unused int xgene_gpio_resume(struct device *dev)
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{
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struct xgene_gpio *gpio = dev_get_drvdata(dev);
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unsigned long bank_offset;
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@ -166,10 +163,6 @@ static int xgene_gpio_resume(struct device *dev)
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}
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static SIMPLE_DEV_PM_OPS(xgene_gpio_pm, xgene_gpio_suspend, xgene_gpio_resume);
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#define XGENE_GPIO_PM_OPS (&xgene_gpio_pm)
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#else
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#define XGENE_GPIO_PM_OPS NULL
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#endif
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static int xgene_gpio_probe(struct platform_device *pdev)
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{
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@ -241,7 +234,7 @@ static struct platform_driver xgene_gpio_driver = {
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.name = "xgene-gpio",
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.of_match_table = xgene_gpio_of_match,
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.acpi_match_table = ACPI_PTR(xgene_gpio_acpi_match),
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.pm = XGENE_GPIO_PM_OPS,
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.pm = &xgene_gpio_pm,
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},
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.probe = xgene_gpio_probe,
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};
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