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Diffstat (limited to 'Documentation/driver-api/gpio/driver.rst')
| -rw-r--r-- | Documentation/driver-api/gpio/driver.rst | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/Documentation/driver-api/gpio/driver.rst b/Documentation/driver-api/gpio/driver.rst index a6c14ff0c54f..3043167fc557 100644 --- a/Documentation/driver-api/gpio/driver.rst +++ b/Documentation/driver-api/gpio/driver.rst @@ -135,7 +135,7 @@ This configuration is normally used as a way to achieve one of two things: - inverse wire-OR on an I/O line, for example a GPIO line, making it possible for any driving stage on the line to drive it low even if any other output to the same line is simultaneously driving it high. A special case of this - is driving the SCL and SCA lines of an I2C bus, which is by definition a + is driving the SCL and SDA lines of an I2C bus, which is by definition a wire-OR bus. Both usecases require that the line be equipped with a pull-up resistor. This @@ -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) |