/* SPDX-License-Identifier: GPL-2.0+ */
/*
* IMX pinmux core definitions
*
* Copyright ( C ) 2012 Freescale Semiconductor , Inc .
* Copyright ( C ) 2012 Linaro Ltd .
*
* Author : Dong Aisheng < dong . aisheng @ linaro . org >
*/
#ifndef __DRIVERS_PINCTRL_IMX_H
#define __DRIVERS_PINCTRL_IMX_H
#include <linux/pinctrl/pinmux.h>
struct platform_device;
extern struct pinmux_ops imx_pmx_ops;
extern const struct dev_pm_ops imx_pinctrl_pm_ops;
/**
* struct imx_pin_mmio - MMIO pin configurations
* @ mux_mode : the mux mode for this pin .
* @ input_reg : the select input register offset for this pin if any
* 0 if no select input setting needed .
* @ input_val : the select input value for this pin .
* @ configs : the config for this pin .
*/
struct imx_pin_mmio {
unsigned int mux_mode;
u16 input_reg;
unsigned int input_val;
unsigned long config;
};
/**
* struct imx_pin_scu - SCU pin configurations
* @ mux : the mux mode for this pin .
* @ configs : the config for this pin .
*/
struct imx_pin_scu {
unsigned int mux_mode;
unsigned long config;
};
/**
* struct imx_pin - describes a single i . MX pin
* @ pin : the pin_id of this pin
* @ conf : config type of this pin , either mmio or scu
*/
struct imx_pin {
unsigned int pin;
union {
struct imx_pin_mmio mmio;
struct imx_pin_scu scu;
} conf;
};
/**
* struct imx_pin_reg - describe a pin reg map
* @ mux_reg : mux register offset
* @ conf_reg : config register offset
*/
struct imx_pin_reg {
s16 mux_reg;
s16 conf_reg;
};
/**
* @ dev : a pointer back to containing device
* @ base : the offset to the controller in virtual memory
*/
struct imx_pinctrl {
struct device *dev;
struct pinctrl_dev *pctl;
void __iomem *base;
void __iomem *input_sel_base;
const struct imx_pinctrl_soc_info *info;
struct imx_pin_reg *pin_regs;
unsigned int group_index;
struct mutex mutex;
};
struct imx_pinctrl_soc_info {
const struct pinctrl_pin_desc *pins;
unsigned int npins;
unsigned int flags;
const char *gpr_compatible;
/* MUX_MODE shift and mask in case SHARE_MUX_CONF_REG */
unsigned int mux_mask;
u8 mux_shift;
int (*gpio_set_direction)(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range,
unsigned offset,
bool input);
int (*imx_pinconf_get)(struct pinctrl_dev *pctldev, unsigned int pin_id,
unsigned long *config);
int (*imx_pinconf_set)(struct pinctrl_dev *pctldev, unsigned int pin_id,
unsigned long *configs, unsigned int num_configs);
void (*imx_pinctrl_parse_pin)(struct imx_pinctrl *ipctl,
unsigned int *pin_id, struct imx_pin *pin,
const __be32 **list_p);
};
#define SHARE_MUX_CONF_REG BIT(0 )
#define ZERO_OFFSET_VALID BIT(1 )
#define IMX_USE_SCU BIT(2 )
#define NO_MUX 0 x0
#define NO_PAD 0 x0
#define IMX_PINCTRL_PIN(pin) PINCTRL_PIN(pin, #pin )
#define PAD_CTL_MASK(len) ((1 << len) - 1 )
#define IMX_MUX_MASK 0 x7
#define IOMUXC_CONFIG_SION (0 x1 << 4 )
int imx_pinctrl_probe(struct platform_device *pdev,
const struct imx_pinctrl_soc_info *info);
#define BM_PAD_CTL_GP_ENABLE BIT(30 )
#define BM_PAD_CTL_IFMUX_ENABLE BIT(31 )
#define BP_PAD_CTL_IFMUX 27
int imx_pinctrl_sc_ipc_init(struct platform_device *pdev);
int imx_pinconf_get_scu(struct pinctrl_dev *pctldev, unsigned pin_id,
unsigned long *config);
int imx_pinconf_set_scu(struct pinctrl_dev *pctldev, unsigned pin_id,
unsigned long *configs, unsigned num_configs);
void imx_pinctrl_parse_pin_scu(struct imx_pinctrl *ipctl,
unsigned int *pin_id, struct imx_pin *pin,
const __be32 **list_p);
#endif /* __DRIVERS_PINCTRL_IMX_H */
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