@@ -582,6 +582,7 @@ static struct i2c_algorithm bfin_twi_algorithm = {
.functionality = bfin_twi_functionality,
};
+#ifdef CONFIG_PM_SLEEP
static int i2c_bfin_twi_suspend(struct device *dev)
{
struct bfin_twi_iface *iface = dev_get_drvdata(dev);
@@ -619,6 +620,10 @@ static int i2c_bfin_twi_resume(struct device *dev)
static SIMPLE_DEV_PM_OPS(i2c_bfin_twi_pm,
i2c_bfin_twi_suspend, i2c_bfin_twi_resume);
+#define I2C_BFIN_TWI_PM_OPS (&i2c_bfin_twi_pm)
+#else
+#define I2C_BFIN_TWI_PM_OPS NULL
+#endif
static int i2c_bfin_twi_probe(struct platform_device *pdev)
{
@@ -746,7 +751,7 @@ static struct platform_driver i2c_bfin_twi_driver = {
.driver = {
.name = "i2c-bfin-twi",
.owner = THIS_MODULE,
- .pm = &i2c_bfin_twi_pm,
+ .pm = I2C_BFIN_TWI_PM_OPS,
},
};
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-bfin-twi.c:585:12: warning: 'i2c_bfin_twi_suspend' defined but not used [-Wunused-function] drivers/i2c/busses/i2c-bfin-twi.c:600:12: warning: 'i2c_bfin_twi_resume' defined but not used [-Wunused-function] Signed-off-by: Jingoo Han <jg1.han@samsung.com> --- drivers/i2c/busses/i2c-bfin-twi.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)