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gpio: sprd: Fix the incorrect data register

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commit 09d158d52d upstream.

Since differnt type EICs have its own data register to read, thus fix the
incorrect data register.

Fixes: 25518e024e ("gpio: Add Spreadtrum EIC driver support")
Cc: <stable@vger.kernel.org>
Signed-off-by: Neo Hou <neo.hou@unisoc.com>
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Neo Hou 2019-01-16 13:06:13 +08:00 committed by Greg Kroah-Hartman
parent 95fcc1427d
commit 3a4a800bf5
1 changed files with 12 additions and 1 deletions
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13
drivers/gpio/gpio-eic-sprd.c
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@ -180,7 +180,18 @@ static void sprd_eic_free(struct gpio_chip *chip, unsigned int offset)
static int sprd_eic_get(struct gpio_chip *chip, unsigned int offset)
{
return sprd_eic_read(chip, offset, SPRD_EIC_DBNC_DATA);
struct sprd_eic *sprd_eic = gpiochip_get_data(chip);
switch (sprd_eic->type) {
case SPRD_EIC_DEBOUNCE:
return sprd_eic_read(chip, offset, SPRD_EIC_DBNC_DATA);
case SPRD_EIC_ASYNC:
return sprd_eic_read(chip, offset, SPRD_EIC_ASYNC_DATA);
case SPRD_EIC_SYNC:
return sprd_eic_read(chip, offset, SPRD_EIC_SYNC_DATA);
default:
return -ENOTSUPP;
}
}
static int sprd_eic_direction_input(struct gpio_chip *chip, unsigned int offset)