gpio: pcie-idio-24: Mask read inputs for get_multiple
This patch masks the read inputs with the word mask in order to ensure only requested input states are returned in the bits array. Suggested-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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@ -243,7 +243,7 @@ static int idio_24_gpio_get_multiple(struct gpio_chip *chip,
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port_state = ioread8(&idio24gpio->reg->ttl_in0_7);
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/* store acquired bits at respective bits array offset */
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bits[word_index] |= port_state << word_offset;
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bits[word_index] |= (port_state << word_offset) & word_mask;
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}
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return 0;
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