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| author | Neo Hou <neo.hou@unisoc.com> | 2019-01-16 13:06:13 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-06 17:30:12 +0100 |
| commit | 3a4a800bf519ff5088e74244ab8e83b925783cd3 (patch) | |
| tree | 9b1b33fd7981cc5b3ddb8a5496c6f21411a88e74 /drivers/gpio | |
| parent | 95fcc1427d7f80f96cec6362b9b601ef4353a000 (diff) | |
| download | linux-stable-3a4a800bf519ff5088e74244ab8e83b925783cd3.tar.gz linux-stable-3a4a800bf519ff5088e74244ab8e83b925783cd3.tar.bz2 linux-stable-3a4a800bf519ff5088e74244ab8e83b925783cd3.zip | |
gpio: sprd: Fix the incorrect data register
commit 09d158d52d2bceda736797a61b6c13d7fc83707b upstream.
Since differnt type EICs have its own data register to read, thus fix the
incorrect data register.
Fixes: 25518e024e3a ("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>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-eic-sprd.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-eic-sprd.c b/drivers/gpio/gpio-eic-sprd.c index e0d6a0a7bc69..257df59815c9 100644 --- a/drivers/gpio/gpio-eic-sprd.c +++ b/drivers/gpio/gpio-eic-sprd.c @@ -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) |