mfd: exynos-lpass: Mark PM functions as __maybe_unused
The newly added exynos lpass driver produces a build warning when
CONFIG_PM is disabled since the only callers of exynos_lpass_disable
are under an #ifdef:
drivers/mfd/exynos-lpass.c:93:13: error: 'exynos_lpass_disable' defined but not used [-Werror=unused-function]
static void exynos_lpass_disable(struct exynos_lpass *lpass)
This removes the #ifdef and replaces it with __maybe_unused annotations
so the compiler can leave out the unused code silently with less
room for mistakes.
Fixes: 36c26760bba8 ("mfd: Add Samsung Exynos Low Power Audio Subsystem driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
diff --git a/drivers/mfd/exynos-lpass.c b/drivers/mfd/exynos-lpass.c
index 578ac7b..2e064fb 100644
--- a/drivers/mfd/exynos-lpass.c
+++ b/drivers/mfd/exynos-lpass.c
@@ -144,8 +144,7 @@
return of_platform_populate(dev->of_node, NULL, NULL, dev);
}
-#ifdef CONFIG_PM_SLEEP
-static int exynos_lpass_suspend(struct device *dev)
+static int __maybe_unused exynos_lpass_suspend(struct device *dev)
{
struct exynos_lpass *lpass = dev_get_drvdata(dev);
@@ -154,7 +153,7 @@
return 0;
}
-static int exynos_lpass_resume(struct device *dev)
+static int __maybe_unused exynos_lpass_resume(struct device *dev)
{
struct exynos_lpass *lpass = dev_get_drvdata(dev);
@@ -162,7 +161,6 @@
return 0;
}
-#endif
static SIMPLE_DEV_PM_OPS(lpass_pm_ops, exynos_lpass_suspend,
exynos_lpass_resume);