1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* Copyright (c) 2025, NVIDIA CORPORATION. All rights reserved. */ 3 4 /* 5 * This header provides constants for the nvidia,tegra256-gpio DT binding. 6 * 7 * The first cell in Tegra's GPIO specifier is the GPIO ID. 8 * The macros below provide names for this. 9 * 10 * The second cell contains standard flag values specified in gpio.h. 11 */ 12 13 #ifndef _DT_BINDINGS_GPIO_TEGRA256_GPIO_H 14 #define _DT_BINDINGS_GPIO_TEGRA256_GPIO_H 15 16 #include <dt-bindings/gpio/gpio.h> 17 18 /* GPIOs implemented by main GPIO controller */ 19 #define TEGRA256_MAIN_GPIO_PORT_A 0 20 #define TEGRA256_MAIN_GPIO_PORT_B 1 21 #define TEGRA256_MAIN_GPIO_PORT_C 2 22 #define TEGRA256_MAIN_GPIO_PORT_D 3 23 24 #define TEGRA256_MAIN_GPIO(port, offset) \ 25 ((TEGRA256_MAIN_GPIO_PORT_##port * 8) + (offset)) 26 27 #endif 28 29