From deb9c864eac86b4c7a57ec5bf90d301f7f741bd0 Mon Sep 17 00:00:00 2001 From: Pascal Paillet Date: Tue, 15 Mar 2022 15:20:00 +0100 Subject: [PATCH] feat(dt-bindings): describe ST GPIO banks and config Describe GPIO banks configs so that it can be used in an STM32MP device-tree file. Signed-off-by: Pascal Paillet Change-Id: If5dd05aae314cbb3189eb02c9fe555b832ac2bdb --- include/dt-bindings/gpio/stm32-gpio.h | 41 +++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 include/dt-bindings/gpio/stm32-gpio.h diff --git a/include/dt-bindings/gpio/stm32-gpio.h b/include/dt-bindings/gpio/stm32-gpio.h new file mode 100644 index 000000000..2c7a0f154 --- /dev/null +++ b/include/dt-bindings/gpio/stm32-gpio.h @@ -0,0 +1,41 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */ +/* + * Copyright (C) 2024 STMicroelectronics - All Rights Reserved + * Author: Paillet Pascal for STMicroelectronics. + */ + +#ifndef DT_BINDINGS_STM32_GPIO_H +#define DT_BINDINGS_STM32_GPIO_H + +/* Bank IDs used in GPIO driver API */ +#define GPIO_BANK_A 0U +#define GPIO_BANK_B 1U +#define GPIO_BANK_C 2U +#define GPIO_BANK_D 3U +#define GPIO_BANK_E 4U +#define GPIO_BANK_F 5U +#define GPIO_BANK_G 6U +#define GPIO_BANK_H 7U +#define GPIO_BANK_I 8U +#define GPIO_BANK_J 9U +#define GPIO_BANK_K 10U +#define GPIO_BANK_Z 25U + +/* Bit 0 is used to set GPIO in input mode */ +#define GPIOF_DIR_OUT 0x0 +#define GPIOF_DIR_IN 0x1 + +/* Bit 1 is used to set GPIO high level during init */ +#define GPIOF_INIT_LOW 0x0 +#define GPIOF_INIT_HIGH 0x2 + +#define GPIOF_IN (GPIOF_DIR_IN) +#define GPIOF_OUT_INIT_LOW (GPIOF_DIR_OUT | GPIOF_INIT_LOW) +#define GPIOF_OUT_INIT_HIGH (GPIOF_DIR_OUT | GPIOF_INIT_HIGH) + +/* Bit 2 is used to set GPIO pull up */ +#define GPIOF_PULL_UP 0x4 +/* Bit 3 is used to set GPIO pull down */ +#define GPIOF_PULL_DOWN 0x8 + +#endif /* DT_BINDINGS_STM32_GPIO_H */