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gpio: Pass a flag to gpiochip_request_own_desc()

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Before things go out of hand, make it possible to pass
flags when requesting "own" descriptors from a gpio_chip.
This is necessary if the chip wants to request a GPIO with
active low semantics, for example.

Cc: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Roger Quadros <rogerq@ti.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij
2018-09-04 13:31:45 +02:00
parent 67566ae474
commit 21abf10381
9 changed files with 34 additions and 19 deletions
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2
drivers/hid/hid-cp2112.c
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@@ -1203,7 +1203,7 @@ static int __maybe_unused cp2112_allocate_irq(struct cp2112_device *dev,
return -EINVAL;
dev->desc[pin] = gpiochip_request_own_desc(&dev->gc, pin,
"HID/I2C:Event");
"HID/I2C:Event", 0);
if (IS_ERR(dev->desc[pin])) {
dev_err(dev->gc.parent, "Failed to request GPIO\n");
return PTR_ERR(dev->desc[pin]);