/* SPDX-License-Identifier: GPL-2.0-only */ /* * Intel Tangier GPIO functions * * Copyright (c) 2016, 2021, 2023 Intel Corporation. * * Authors: Andy Shevchenko <[email protected]> * Pandith N <[email protected]> * Raag Jadav <[email protected]> */ #ifndef _GPIO_TANGIER_H_ #define _GPIO_TANGIER_H_ #include <linux/gpio/driver.h> #include <linux/pm.h> #include <linux/spinlock_types.h> #include <linux/types.h> struct device; struct tng_gpio_context; /* Elkhart Lake specific wake registers */ #define GWMR_EHL … #define GWSR_EHL … #define GSIR_EHL … /* Merrifield specific wake registers */ #define GWMR_MRFLD … #define GWSR_MRFLD … #define GSIR_MRFLD … /** * struct tng_wake_regs - Platform specific wake registers * @gwmr: Wake mask * @gwsr: Wake source * @gsir: Secure input */ struct tng_wake_regs { … }; /** * struct tng_gpio_pinrange - Map pin numbers to gpio numbers * @gpio_base: Starting GPIO number of this range * @pin_base: Starting pin number of this range * @npins: Number of pins in this range */ struct tng_gpio_pinrange { … }; #define GPIO_PINRANGE(gstart, gend, pstart) … /** * struct tng_gpio_pin_info - Platform specific pinout information * @pin_ranges: Pin to GPIO mapping * @nranges: Number of pin ranges * @name: Respective pinctrl device name */ struct tng_gpio_pin_info { … }; /** * struct tng_gpio_info - Platform specific GPIO and IRQ information * @base: GPIO base to start numbering with * @ngpio: Amount of GPIOs supported by the controller * @first: First IRQ to start numbering with */ struct tng_gpio_info { … }; /** * struct tng_gpio - Platform specific private data * @chip: Instance of the struct gpio_chip * @reg_base: Base address of MMIO registers * @irq: Interrupt for the GPIO device * @lock: Synchronization lock to prevent I/O race conditions * @dev: The GPIO device * @ctx: Context to be saved during suspend-resume * @wake_regs: Platform specific wake registers * @pin_info: Platform specific pinout information * @info: Platform specific GPIO and IRQ information */ struct tng_gpio { … }; int devm_tng_gpio_probe(struct device *dev, struct tng_gpio *gpio); extern const struct dev_pm_ops tng_gpio_pm_ops; #endif /* _GPIO_TANGIER_H_ */
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