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Input: ektf2127 - mark PM functions as __maybe_unused

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The newly added ektf2127 driver uses the SIMPLE_DEV_PM_OPS macro
to conditionally refer to the resume/suspend functions, which
causes a warning when CONFIG_PM_SLEEP is disabled:

drivers/input/touchscreen/ektf2127.c:168:12: error: 'ektf2127_resume' defined but not used [-Werror=unused-function]
drivers/input/touchscreen/ektf2127.c:156:12: error: 'ektf2127_suspend' defined but not used [-Werror=unused-function]

We could either put these functions inside of an #ifdef or
add __maybe_unused annotations. This uses the second approach,
which is generally more foolproof.

Fixes: 9ca5bf5029 ("Input: add support for Elan eKTF2127 touchscreen controller")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Arnd Bergmann 2016-09-30 15:36:54 -07:00 committed by Dmitry Torokhov
parent d095c500fd
commit 979987ded3
1 changed files with 2 additions and 2 deletions
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4
drivers/input/touchscreen/ektf2127.c
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@ -153,7 +153,7 @@ static void ektf2127_stop(struct input_dev *dev)
gpiod_set_value_cansleep(ts->power_gpios, 0); gpiod_set_value_cansleep(ts->power_gpios, 0);
} }
static int ektf2127_suspend(struct device *dev) static int __maybe_unused ektf2127_suspend(struct device *dev)
{ {
struct ektf2127_ts *ts = i2c_get_clientdata(to_i2c_client(dev)); struct ektf2127_ts *ts = i2c_get_clientdata(to_i2c_client(dev));
@ -165,7 +165,7 @@ static int ektf2127_suspend(struct device *dev)
return 0; return 0;
} }
static int ektf2127_resume(struct device *dev) static int __maybe_unused ektf2127_resume(struct device *dev)
{ {
struct ektf2127_ts *ts = i2c_get_clientdata(to_i2c_client(dev)); struct ektf2127_ts *ts = i2c_get_clientdata(to_i2c_client(dev));