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/*
* Exynos pinctrl driver header.
* Copyright (C) 2016 Samsung Electronics
* Thomas Abraham <thomas.ab@samsung.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __PINCTRL_EXYNOS_H_
#define __PINCTRL_EXYNOS__H_
#define PIN_CON 0x00 /* Offset of pin function register */
#define PIN_DAT 0x04 /* Offset of pin data register */
#define PIN_PUD 0x08 /* Offset of pin pull up/down config register */
#define PIN_DRV 0x0C /* Offset of pin drive strength register */
/**
* struct samsung_pin_bank_data: represent a controller pin-bank data.
* @offset: starting offset of the pin-bank registers.
* @nr_pins: number of pins included in this bank.
* @name: name to be prefixed for each pin in this pin bank.
*/
struct samsung_pin_bank_data {
u32 offset;
u8 nr_pins;
const char *name;
};
#define EXYNOS_PIN_BANK(pins, reg, id) \
{ \
.offset = reg, \
.nr_pins = pins, \
.name = id \
}
/**
* struct samsung_pin_ctrl: represent a pin controller.
* @pin_banks: list of pin banks included in this controller.
* @nr_banks: number of pin banks.
*/
struct samsung_pin_ctrl {
const struct samsung_pin_bank_data *pin_banks;
u32 nr_banks;
};
/**
* struct exynos_pinctrl_priv: exynos pin controller driver private data
* @pin_ctrl: pin controller bank information.
* @base: base address of the pin controller instance.
* @num_banks: number of pin banks included in the pin controller.
*/
struct exynos_pinctrl_priv {
const struct samsung_pin_ctrl *pin_ctrl;
unsigned long base;
int num_banks;
};
/**
* struct exynos_pinctrl_config_data: configuration for a peripheral.
* @offset: offset of the config registers in the controller.
* @mask: value of the register to be masked with.
* @value: new value to be programmed.
*/
struct exynos_pinctrl_config_data {
const unsigned int offset;
const unsigned int mask;
const unsigned int value;
};
void exynos_pinctrl_setup_peri(struct exynos_pinctrl_config_data *conf,
unsigned int num_conf, unsigned long base);
int exynos_pinctrl_set_state(struct udevice *dev,
struct udevice *config);
int exynos_pinctrl_probe(struct udevice *dev);
#endif /* __PINCTRL_EXYNOS_H_ */
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