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- /* SPDX-License-Identifier: GPL-2.0+ */
- /*
- * Copyright (C) 2012 Samsung Electronics
- * Abhilash Kesavan <a.kesavan@samsung.com>
- */
- #ifndef __ASM_ARM_ARCH_PINMUX_H
- #define __ASM_ARM_ARCH_PINMUX_H
- #include "periph.h"
- /*
- * Flags for setting specific configarations of peripherals.
- * List will grow with support for more devices getting added.
- */
- enum {
- PINMUX_FLAG_NONE = 0x00000000,
- /* Flags for eMMC */
- PINMUX_FLAG_8BIT_MODE = 1 << 0, /* SDMMC 8-bit mode */
- /* Flags for SROM controller */
- PINMUX_FLAG_BANK = 3 << 0, /* bank number (0-3) */
- PINMUX_FLAG_16BIT = 1 << 2, /* 16-bit width */
- };
- /**
- * Configures the pinmux for a particular peripheral.
- *
- * Each gpio can be configured in many different ways (4 bits on exynos)
- * such as "input", "output", "special function", "external interrupt"
- * etc. This function will configure the peripheral pinmux along with
- * pull-up/down and drive strength.
- *
- * @param peripheral peripheral to be configured
- * @param flags configure flags
- * Return: 0 if ok, -1 on error (e.g. unsupported peripheral)
- */
- int exynos_pinmux_config(int peripheral, int flags);
- /**
- * Decode the peripheral id using the interrpt numbers.
- *
- * @param blob Device tree blob
- * @param node FDT I2C node to find
- * Return: peripheral id if ok, PERIPH_ID_NONE on error
- */
- int pinmux_decode_periph_id(const void *blob, int node);
- #endif
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