When building a kernel with CONFIG_PM=y but neither suspend nor
hibernate support, the compiler complains about the static functions
matrix_keypad_suspend() and matrix_keypad_resume() not being used:
drivers/input/keyboard/matrix_keypad.c:219:12: warning: ‘matrix_keypad_suspend’ defined but not used
drivers/input/keyboard/matrix_keypad.c:242:12: warning: ‘matrix_keypad_resume’ defined but not used
Depending on CONFIG_PM_SLEEP rather than CONFIG_PM fixes the issue.
Signed-off-by: Tobias Doerffel <tobias.doerffel@xxxxxxxxx>
---
drivers/input/keyboard/matrix_keypad.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c
index b443e08..139a3bc 100644
--- a/drivers/input/keyboard/matrix_keypad.c
+++ b/drivers/input/keyboard/matrix_keypad.c
@@ -215,7 +215,7 @@ static void matrix_keypad_stop(struct input_dev *dev)
disable_row_irqs(keypad);
}
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
static int matrix_keypad_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
@@ -440,7 +440,7 @@ static struct platform_driver matrix_keypad_driver = {
.driver = {
.name = "matrix-keypad",
.owner = THIS_MODULE,
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
.pm = &matrix_keypad_pm_ops,
#endif
},
--
1.7.0.4
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