gpio/gpio-stmpe: Fix the value returned by _get_value routine
The present _get_value routine returns the contents of the GPIO Monitor Pin
Status Register(GPMR) starting from the bit whose value is requested to BIT 0
(irrelevant bits are replace by 0).
For e.g. if we request the value of GPIO 6 in the earlier implementation the
value returned is:
BIT6 followed by 6 0's
whereas it should just return BIT6.
This patch addresses the same.
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@st.com>
Reviewed-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
diff --git a/drivers/gpio/gpio-stmpe.c b/drivers/gpio/gpio-stmpe.c
index 87a68a8..8abf4e9 100644
--- a/drivers/gpio/gpio-stmpe.c
+++ b/drivers/gpio/gpio-stmpe.c
@@ -54,7 +54,7 @@
if (ret < 0)
return ret;
- return ret & mask;
+ return !!(ret & mask);
}
static void stmpe_gpio_set(struct gpio_chip *chip, unsigned offset, int val)