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gpio/gpio-stmpe: Fix the value returned by _get_value routine

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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>
This commit is contained in:
Bhupesh Sharma 2012-02-27 11:19:43 +05:30 committed by Grant Likely
parent 0dc665d426
commit 7535b8bef0
1 changed files with 1 additions and 1 deletions
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2
drivers/gpio/gpio-stmpe.c
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@ -54,7 +54,7 @@ static int stmpe_gpio_get(struct gpio_chip *chip, unsigned offset)
if (ret < 0)
return ret;
return ret & mask;
return !!(ret & mask);
}
static void stmpe_gpio_set(struct gpio_chip *chip, unsigned offset, int val)