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hwrng: exynos - add CONFIG_PM_SLEEP/CONFIG_PM_RUNTIME to suspend/resume

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This patch adds CONFIG_PM_SLEEP to suspend/resume functions to fix
the following build warning when CONFIG_PM_SLEEP is not selected.

drivers/char/hw_random/exynos-rng.c:147:12: warning: 'exynos_rng_runtime_suspend' defined but not used [-Wunused-function]
drivers/char/hw_random/exynos-rng.c:157:12: warning: 'exynos_rng_runtime_resume' defined but not used [-Wunused-function]

Add CONFIG_PM_RUNTIME to suspend/resume functions to fix the build
error. It is because UNIVERSAL_DEV_PM_OPS macro is related to both
CONFIG_PM_SLEEP and CONFIG_PM_RUNTIME.

drivers/char/hw_random/exynos-rng.c:167:8: error: 'exynos_rng_runtime_suspend' undeclared here (not in a function)
drivers/char/hw_random/exynos-rng.c:167:8: error: 'exynos_rng_runtime_resume' undeclared here (not in a function)

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reported-by: David Rientjes <rientjes@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Jingoo Han 2013-03-12 14:46:22 +09:00 • committed by Herbert Xu
parent 1643a35fea
commit a80c5422b1
1 changed files with 2 additions and 1 deletions
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3
drivers/char/hw_random/exynos-rng.c
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@ -144,6 +144,7 @@ static int exynos_rng_remove(struct platform_device *pdev)
return 0; return 0;
} }
#if defined(CONFIG_PM_SLEEP) || defined(CONFIG_PM_RUNTIME)
static int exynos_rng_runtime_suspend(struct device *dev) static int exynos_rng_runtime_suspend(struct device *dev)
{ {
struct platform_device *pdev = to_platform_device(dev); struct platform_device *pdev = to_platform_device(dev);
@ -161,7 +162,7 @@ static int exynos_rng_runtime_resume(struct device *dev)
return clk_prepare_enable(exynos_rng->clk); return clk_prepare_enable(exynos_rng->clk);
} }
#endif
static UNIVERSAL_DEV_PM_OPS(exynos_rng_pm_ops, exynos_rng_runtime_suspend, static UNIVERSAL_DEV_PM_OPS(exynos_rng_pm_ops, exynos_rng_runtime_suspend,
exynos_rng_runtime_resume, NULL); exynos_rng_runtime_resume, NULL);