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| author | Linus Walleij <linus.walleij@linaro.org> | 2018-09-04 13:31:45 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2018-12-14 14:24:33 +0100 |
| commit | 21abf103818a4735e80fb0ab03934bed8ae9a028 (patch) | |
| tree | 39dcd84b5aff1baa384586280ead998356f6aa48 /Documentation/driver-api | |
| parent | gpio: lpc18xx: fix GPIO controller driver build as a module (diff) | |
| download | linux-21abf103818a4735e80fb0ab03934bed8ae9a028.tar.xz linux-21abf103818a4735e80fb0ab03934bed8ae9a028.zip | |
gpio: Pass a flag to gpiochip_request_own_desc()
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>
Diffstat (limited to 'Documentation/driver-api')
| -rw-r--r-- | Documentation/driver-api/gpio/driver.rst | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/driver-api/gpio/driver.rst b/Documentation/driver-api/gpio/driver.rst index a6c14ff0c54f..a92d8837b62b 100644 --- a/Documentation/driver-api/gpio/driver.rst +++ b/Documentation/driver-api/gpio/driver.rst @@ -434,7 +434,9 @@ try_module_get()). A GPIO driver can use the following functions instead to request and free descriptors without being pinned to the kernel forever:: struct gpio_desc *gpiochip_request_own_desc(struct gpio_desc *desc, - const char *label) + u16 hwnum, + const char *label, + enum gpiod_flags flags) void gpiochip_free_own_desc(struct gpio_desc *desc) |