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authorJingoo Han <jg1.han@samsung.com>2013-03-12 14:46:22 +0900
committerHerbert Xu <herbert@gondor.apana.org.au>2013-03-22 18:13:53 +0800
commita80c5422b1426699c279b74fe8d3e8a4e3c902de (patch)
tree1f38649612e5c91b645f742e37b6833e6807440d
parent1643a35fea3300c7df63c91596d3246c05b43a76 (diff)
hwrng: exynos - add CONFIG_PM_SLEEP/CONFIG_PM_RUNTIME to suspend/resume
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>
-rw-r--r--drivers/char/hw_random/exynos-rng.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/char/hw_random/exynos-rng.c b/drivers/char/hw_random/exynos-rng.c
index ac47631ab34f..402ccfb625c5 100644
--- a/drivers/char/hw_random/exynos-rng.c
+++ b/drivers/char/hw_random/exynos-rng.c
@@ -144,6 +144,7 @@ static int exynos_rng_remove(struct platform_device *pdev)
return 0;
}
+#if defined(CONFIG_PM_SLEEP) || defined(CONFIG_PM_RUNTIME)
static int exynos_rng_runtime_suspend(struct 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);
}
-
+#endif
static UNIVERSAL_DEV_PM_OPS(exynos_rng_pm_ops, exynos_rng_runtime_suspend,
exynos_rng_runtime_resume, NULL);