[PATCH] Input: pmic8xxx-pwrkey - Set sane default for debounce time

[Stephen Boyd]

If the debounce time is 0 our usage of ilog2() later on in this
driver will cause undefined behavior. If CONFIG_OF=n this fact is
evident to the compiler, and it emits a call to ____ilog2_NaN()
which doesn't exist. Fix this by setting a sane default for
debounce.

Reported-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxxxxxx>
---
 drivers/input/misc/pmic8xxx-pwrkey.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/misc/pmic8xxx-pwrkey.c b/drivers/input/misc/pmic8xxx-pwrkey.c
index 1cb8fda7a166..27add04676e1 100644
--- a/drivers/input/misc/pmic8xxx-pwrkey.c
+++ b/drivers/input/misc/pmic8xxx-pwrkey.c
@@ -92,7 +92,7 @@ static int pmic8xxx_pwrkey_probe(struct platform_device *pdev)
 	bool pull_up;
 
 	if (of_property_read_u32(pdev->dev.of_node, "debounce", &kpd_delay))
-		kpd_delay = 0;
+		kpd_delay = 15625;
 
 	pull_up = of_property_read_bool(pdev->dev.of_node, "pull-up");
 
-- 
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