i2c: i2c-mpc: add CONFIG_PM_SLEEP to suspend/resume functions

Add CONFIG_PM_SLEEP to suspend/resume functions to fix the following
build warning when CONFIG_PM_SLEEP is not selected. This is because
sleep PM callbacks defined by SIMPLE_DEV_PM_OPS are only used when
the CONFIG_PM_SLEEP is enabled.

drivers/i2c/busses/i2c-mpc.c:724:12: warning: 'mpc_i2c_suspend' defined but not used [-Wunused-function]
drivers/i2c/busses/i2c-mpc.c:734:12: warning: 'mpc_i2c_resume' defined but not used [-Wunused-function]

Also, this patch makes mpc_i2c_pm_ops static, because mpc_i2c_pm_ops
is not exported.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c
index 99acf63..ffac214 100644 (file)
--- a/drivers/i2c/busses/i2c-mpc.c
+++ b/drivers/i2c/busses/i2c-mpc.c
@@ -64,7 +64,7 @@ struct mpc_i2c {
        struct i2c_adapter adap;
        int irq;
        u32 real_clk;
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
        u8 fdr, dfsrr;
 #endif
 };
@@ -723,7 +723,7 @@ static int fsl_i2c_remove(struct platform_device *op)
        return 0;
 };
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int mpc_i2c_suspend(struct device *dev)
 {
        struct mpc_i2c *i2c = dev_get_drvdata(dev);
@@ -744,7 +744,10 @@ static int mpc_i2c_resume(struct device *dev)
        return 0;
 }
 
-SIMPLE_DEV_PM_OPS(mpc_i2c_pm_ops, mpc_i2c_suspend, mpc_i2c_resume);
+static SIMPLE_DEV_PM_OPS(mpc_i2c_pm_ops, mpc_i2c_suspend, mpc_i2c_resume);
+#define MPC_I2C_PM_OPS (&mpc_i2c_pm_ops)
+#else
+#define MPC_I2C_PM_OPS NULL
 #endif
 
 static const struct mpc_i2c_data mpc_i2c_data_512x = {
@@ -791,9 +794,7 @@ static struct platform_driver mpc_i2c_driver = {
                .owner = THIS_MODULE,
                .name = DRV_NAME,
                .of_match_table = mpc_i2c_of_match,
-#ifdef CONFIG_PM
-               .pm = &mpc_i2c_pm_ops,
-#endif
+               .pm = MPC_I2C_PM_OPS,
        },
 };