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| author | William Breathitt Gray <vilhelm.gray@gmail.com> | 2015-11-22 11:38:55 -0500 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2015-11-30 14:42:06 +0100 |
| commit | fb50cdfeeda868ae2bfe7ec2e0afebff53eca2d5 (patch) | |
| tree | 6e7cebeae7cba9f05309ac5fe3d5fc55c9698142 /drivers/gpio/gpio-104-idio-16.c | |
| parent | d9110e9ce7ed98b24fa58764833e89a430843c21 (diff) | |
| download | linux-0-day-fb50cdfeeda868ae2bfe7ec2e0afebff53eca2d5.tar.gz linux-0-day-fb50cdfeeda868ae2bfe7ec2e0afebff53eca2d5.tar.xz | |
gpio: 104-idio-16: Disable IRQ on device probe
IRQ should be disabled on device probe so that the device IRQ is in a
known starting state. If IRQ is not disabled, interrupts may be reported
as handled by the IRQ handler, despite no irq_unmask calls made by the
user.
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-104-idio-16.c')
| -rw-r--r-- | drivers/gpio/gpio-104-idio-16.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-104-idio-16.c b/drivers/gpio/gpio-104-idio-16.c index 81b6904bdfe6e..efe3ff7d574e3 100644 --- a/drivers/gpio/gpio-104-idio-16.c +++ b/drivers/gpio/gpio-104-idio-16.c @@ -242,6 +242,9 @@ static int __init idio_16_probe(struct platform_device *pdev) goto err_gpio_register; } + /* Disable IRQ by default */ + outb(0, base + 2); + err = gpiochip_irqchip_add(&idio16gpio->chip, &idio_16_irqchip, 0, handle_edge_irq, IRQ_TYPE_NONE); if (err) { |