u-boot/include/spl_gpio.h

1 /* SPDX-License-Identifier: GPL-2.0+ */
16  * They correspond to the normal GPIO API (asm-generic/gpio.h). The GPIO
17  * number is encoded in an unsigned int by an SoC-specific means. Pull
18  * values are also SoC-specific.
30  * encoding is SoC-specific.
34  * spl_gpio_set_pull() - Set the pull up/down state of a GPIO
37  * @gpio: GPIO to adjust (SoC-specific)
38  * @pull: Pull value (SoC-specific)
39  * @return return 0 if OK, -ve on error
41 int spl_gpio_set_pull(void *regs, uint gpio, int pull);
44  * spl_gpio_output() - Set a GPIO as an output
47  * @gpio: GPIO to adjust (SoC-specific)
49  * @return return 0 if OK, -ve on error
54  * spl_gpio_input() - Set a GPIO as an input
57  * @gpio: GPIO to adjust (SoC-specific)
58  * @return return 0 if OK, -ve on error