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gpio: pci-idio-16: Fix port memory offset for get_multiple callback 

The ioread8 function expects a memory offset argument. This patch fixes
the ports array to provide the memory addresses of the respective device
I/O registers.

Fixes: 810ebfc5ef ("gpio: pci-idio-16: Implement get_multiple callback")
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
William Breathitt Gray 2018-04-18 08:53:10 -04:00 committed by Linus Walleij
parent f001cc351a
commit aaf96e51de
1 changed files with 4 additions and 4 deletions
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8
drivers/gpio/gpio-pci-idio-16.c
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@ -116,9 +116,9 @@ static int idio_16_gpio_get_multiple(struct gpio_chip *chip,
unsigned long word_mask;
const unsigned long port_mask = GENMASK(gpio_reg_size - 1, 0);
unsigned long port_state;
u8 __iomem ports[] = {
idio16gpio->reg->out0_7, idio16gpio->reg->out8_15,
idio16gpio->reg->in0_7, idio16gpio->reg->in8_15,
void __iomem *ports[] = {
&idio16gpio->reg->out0_7, &idio16gpio->reg->out8_15,
&idio16gpio->reg->in0_7, &idio16gpio->reg->in8_15,
};
/* clear bits array to a clean slate */
@ -143,7 +143,7 @@ static int idio_16_gpio_get_multiple(struct gpio_chip *chip,
}
/* read bits from current gpio port */
port_state = ioread8(ports + i);
port_state = ioread8(ports[i]);
/* store acquired bits at respective bits array offset */
bits[word_index] |= port_state << word_offset;