drm: exynos: mark pm functions as __maybe_unused
commitsteinar/wifi_calib_4_9_kernel7e17510018
upstream. The rework of the exynos DRM clock handling introduced warnings for configurations that have CONFIG_PM disabled: drivers/gpu/drm/exynos/exynos_hdmi.c:736:13: error: 'hdmi_clk_disable_gates' defined but not used [-Werror=unused-function] static void hdmi_clk_disable_gates(struct hdmi_context *hdata) ^~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/exynos/exynos_hdmi.c:717:12: error: 'hdmi_clk_enable_gates' defined but not used [-Werror=unused-function] static int hdmi_clk_enable_gates(struct hdmi_context *hdata) The problem is that the PM functions themselves are inside of an #ifdef, but some functions they call are not. This patch removes the #ifdef and instead marks the PM functions as __maybe_unused, which is a more reliable way to get it right. Link: https://patchwork.kernel.org/patch/8436281/ Fixes:9be7e98984
("drm/exynos/hdmi: clock code re-factoring") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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077463be4f
commit
2105905bc5
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@ -1939,8 +1939,7 @@ static int hdmi_remove(struct platform_device *pdev)
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return 0;
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}
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#ifdef CONFIG_PM
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static int exynos_hdmi_suspend(struct device *dev)
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static int __maybe_unused exynos_hdmi_suspend(struct device *dev)
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{
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struct hdmi_context *hdata = dev_get_drvdata(dev);
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@ -1949,7 +1948,7 @@ static int exynos_hdmi_suspend(struct device *dev)
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return 0;
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}
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static int exynos_hdmi_resume(struct device *dev)
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static int __maybe_unused exynos_hdmi_resume(struct device *dev)
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{
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struct hdmi_context *hdata = dev_get_drvdata(dev);
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int ret;
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@ -1960,7 +1959,6 @@ static int exynos_hdmi_resume(struct device *dev)
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return 0;
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}
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#endif
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static const struct dev_pm_ops exynos_hdmi_pm_ops = {
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SET_RUNTIME_PM_OPS(exynos_hdmi_suspend, exynos_hdmi_resume, NULL)
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