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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Intel Tangier pinctrl functions
*
* Copyright (C) 2016, 2023 Intel Corporation
*
* Authors: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
* Raag Jadav <raag.jadav@intel.com>
*/
#ifndef PINCTRL_TANGIER_H
#define PINCTRL_TANGIER_H
#include <linux/spinlock_types.h>
#include <linux/types.h>
#include <linux/pinctrl/pinctrl.h>
#include "pinctrl-intel.h"
struct device;
struct platform_device;
#define TNG_FAMILY_NR 64
#define TNG_FAMILY_LEN 0x400
/**
* struct tng_family - Tangier pin family description
* @barno: MMIO BAR number where registers for this family reside
* @pin_base: Starting pin of pins in this family
* @npins: Number of pins in this family
* @protected: True if family is protected by access
* @regs: Family specific common registers
*/
struct tng_family {
unsigned int barno;
unsigned int pin_base;
size_t npins;
bool protected;
void __iomem *regs;
};
#define TNG_FAMILY(b, s, e) \
{ \
.barno = (b), \
.pin_base = (s), \
.npins = (e) - (s) + 1, \
}
#define TNG_FAMILY_PROTECTED(b, s, e) \
{ \
.barno = (b), \
.pin_base = (s), \
.npins = (e) - (s) + 1, \
.protected = true, \
}
/**
* struct tng_pinctrl - Tangier pinctrl private structure
* @dev: Pointer to the device structure
* @lock: Lock to serialize register access
* @pctldesc: Pin controller description
* @pctldev: Pointer to the pin controller device
* @families: Array of families this pinctrl handles
* @nfamilies: Number of families in the array
* @functions: Array of functions
* @nfunctions: Number of functions in the array
* @groups: Array of pin groups
* @ngroups: Number of groups in the array
* @pins: Array of pins this pinctrl controls
* @npins: Number of pins in the array
*/
struct tng_pinctrl {
struct device *dev;
raw_spinlock_t lock;
struct pinctrl_desc pctldesc;
struct pinctrl_dev *pctldev;
/* Pin controller configuration */
const struct tng_family *families;
size_t nfamilies;
const struct intel_function *functions;
size_t nfunctions;
const struct intel_pingroup *groups;
size_t ngroups;
const struct pinctrl_pin_desc *pins;
size_t npins;
};
int devm_tng_pinctrl_probe(struct platform_device *pdev);
#endif /* PINCTRL_TANGIER_H */
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