Lines Matching +full:read +full:- +full:write +full:- +full:gpios

4  * SPDX-License-Identifier: Apache-2.0
41  * @brief Maximum number of GPIOs supported by AXP192 PMIC.
51  * The 6 GPIOS are mapped as follows:
74  * @retval -EINVAL if an invalid GPIO number is passed
75  * @retval -ENOTSUP if the requested function is not supported by the given
76  * @retval -errno in case of any bus error
82  * @brief Read out current configuration of a specific GPIO pin.
85  * @param gpio GPIO to read configuration from
88  * @retval -EINVAL if an invalid GPIO number is passed
89  * @retval -errno in case of any bus error
94  * @brief Enable pull-down on specified GPIO pin. AXP192 only supports
95  * pull-down on GPIO3..5. Pull-ups are not supported.
98  * @param gpio GPIO to control pull-downs
99  * @param enable true to enable, false to disable pull-down
101  * @retval -EINVAL if an invalid argument is given (e.g. invalid GPIO number)
102  * @retval -ENOTSUP if pull-down is not supported by the givenn GPIO
103  * @retval -errno in case of any bus error
108  * @brief Read out the current pull-down configuration of a specific GPIO.
111  * @param gpio GPIO to control pull-downs
112  * @param enabled Pointer to current pull-down configuration (true: pull-down
113  * enabled/ false: pull-down disabled)
114  * @retval -EINVAL if an invalid argument is given (e.g. invalid GPIO number)
115  * @retval -ENOTSUP if pull-down is not supported by the givenn GPIO
116  * @retval -errno in case of any bus error
121  * @brief Read GPIO port.
126  * @retval -errno in case of any bus error
131  * @brief Write GPIO port.
137  * @retval -errno in case of any bus error