i2c: stm32f7: avoid ifdef CONFIG_PM_SLEEP for pm callbacks

Avoid CONFIG_PM preprocessor check for pm suspend/resume
callbacks and identify the functions with __maybe_unused.

Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Reviewed-by: Pierre-Yves MORDRET <pierre-yves.mordret@foss.st.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

diff --git a/drivers/i2c/busses/i2c-stm32f7.c b/drivers/i2c/busses/i2c-stm32f7.c
index 9fbcbd1..7e06e6b 100644 (file)
--- a/drivers/i2c/busses/i2c-stm32f7.c
+++ b/drivers/i2c/busses/i2c-stm32f7.c
@@ -2271,8 +2271,7 @@ static int __maybe_unused stm32f7_i2c_runtime_resume(struct device *dev)
        return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
-static int stm32f7_i2c_regs_backup(struct stm32f7_i2c_dev *i2c_dev)
+static int __maybe_unused stm32f7_i2c_regs_backup(struct stm32f7_i2c_dev *i2c_dev)
 {
        int ret;
        struct stm32f7_i2c_regs *backup_regs = &i2c_dev->backup_regs;
@@ -2293,7 +2292,7 @@ static int stm32f7_i2c_regs_backup(struct stm32f7_i2c_dev *i2c_dev)
        return ret;
 }
 
-static int stm32f7_i2c_regs_restore(struct stm32f7_i2c_dev *i2c_dev)
+static int __maybe_unused stm32f7_i2c_regs_restore(struct stm32f7_i2c_dev *i2c_dev)
 {
        u32 cr1;
        int ret;
@@ -2324,7 +2323,7 @@ static int stm32f7_i2c_regs_restore(struct stm32f7_i2c_dev *i2c_dev)
        return ret;
 }
 
-static int stm32f7_i2c_suspend(struct device *dev)
+static int __maybe_unused stm32f7_i2c_suspend(struct device *dev)
 {
        struct stm32f7_i2c_dev *i2c_dev = dev_get_drvdata(dev);
        int ret;
@@ -2345,7 +2344,7 @@ static int stm32f7_i2c_suspend(struct device *dev)
        return 0;
 }
 
-static int stm32f7_i2c_resume(struct device *dev)
+static int __maybe_unused stm32f7_i2c_resume(struct device *dev)
 {
        struct stm32f7_i2c_dev *i2c_dev = dev_get_drvdata(dev);
        int ret;
@@ -2365,7 +2364,6 @@ static int stm32f7_i2c_resume(struct device *dev)
 
        return 0;
 }
-#endif
 
 static const struct dev_pm_ops stm32f7_i2c_pm_ops = {
        SET_RUNTIME_PM_OPS(stm32f7_i2c_runtime_suspend,