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gpio-lynxpoint: force gpio_get() to return "1" and "0" only 

Don't return the IN_LVL_BIT directly, a high gpio line returned
value "1073741824" intestead of "1" because IN_LVL_BIT is BIT(30)

Tested-by: Jerome Blin <jerome.blin@intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
hifive-unleashed-5.1
Mathias Nyman 2014-03-27 15:02:08 +02:00 committed by Linus Walleij
parent c3626fdea0
commit 8650ea1ebc
1 changed files with 1 additions and 1 deletions
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2
drivers/gpio/gpio-lynxpoint.c
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@ -188,7 +188,7 @@ static int lp_irq_type(struct irq_data *d, unsigned type)
static int lp_gpio_get(struct gpio_chip *chip, unsigned offset)
{
unsigned long reg = lp_gpio_reg(chip, offset, LP_CONFIG1);
return inl(reg) & IN_LVL_BIT;
return !!(inl(reg) & IN_LVL_BIT);
}
static void lp_gpio_set(struct gpio_chip *chip, unsigned offset, int value)