From aaf96e51de117cdfa2dc04735639895b46a3da3f Mon Sep 17 00:00:00 2001
From: William Breathitt Gray <vilhelm.gray@gmail.com>
Date: Wed, 18 Apr 2018 08:53:10 -0400
Subject: [PATCH] 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: 810ebfc5efca ("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>
---
drivers/gpio/gpio-pci-idio-16.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpio/gpio-pci-idio-16.c b/drivers/gpio/gpio-pci-idio-16.c
index 1948724d8c36..25d16b2af1c3 100644
--- a/drivers/gpio/gpio-pci-idio-16.c
+++ b/drivers/gpio/gpio-pci-idio-16.c
@@ -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;
--
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